DOE News
    Doe Science news source
    The DOE Science News Source is a Newswise initiative to promote research news from the Office of Science of the DOE to the public and news media.
    • 2014-11-07 11:00:00
    • Article ID: 625845

    Good Vibrations Give Electrons Excitations That Rock an Insulator to Go Metallic

    In a vanadium dioxide crystal, shaking of lattice atoms unlocks electron flow

    • Credit: Image credit: Oak Ridge National Laboratory

      Vanadium atoms (blue) have unusually large thermal vibrations that stabilize the metallic state of a vanadium dioxide crystal. Red depicts oxygen atoms.

    OAK RIDGE, Tenn., Nov. 10, 2014—For more than 50 years, scientists have debated what turns particular oxide insulators, in which electrons barely move, into metals, in which electrons flow freely. Some scientists sided with Nobel Prize–winning physicist Nevill Mott in thinking direct interactions between electrons were the key. Others believed, as did physicist Rudolf Peierls, that atomic vibrations and distortions trumped all. Now, a team led by the Department of Energy’s Oak Ridge National Laboratory has made an important advancement in understanding a classic transition-metal oxide, vanadium dioxide, by quantifying the thermodynamic forces driving the transformation. The results are published in the Nov. 10 advance online issue of Nature.

    “We proved that phonons—the vibrations of the atoms—provide the driving force that stabilizes the metal phase when the material is heated,” said John Budai, who co-led the study with Jiawang Hong, a colleague in ORNL’s Materials Science and Technology Division.

    Hong added, “This insight into how lattice vibrations can control phase stability in transition-metal oxides is needed to improve the performance of many multifunctional materials, including colossal magnetoresistors, superconductors and ferroelectrics.”

    Today vanadium dioxide improves recording and storage media, strengthens structural alloys, and colors synthetic jewels. Tomorrow it may find its way into nanoscale actuators for switches, optical shutters that turn opaque on satellites to thwart intruding signals, and field-effect transistors to manipulate electronics in semiconductors and spintronics in devices that manipulate magnetic spin.

    The next application we see may be energy-efficient “smart windows” coated with vanadium dioxide peppered with an impurity to control the transmission of heat and light. On cool days, windows would be transparent insulators that let in heat. On warm days, they would turn shiny and reflect the outside heat.

    Complete thermodynamics

    Materials are stabilized by a competition between internal energy and entropy (a measure of disorder that increases with temperature). While Mott and Peierls focused on energy, the ORNL-led team focused on the entropy.

    Before the ORNL-led experiments, scientists knew the total amount of heat absorbed during vanadium dioxide’s transition from insulator to metal. But they didn’t know how much entropy was due to electrons and how much was due to atomic vibrations.

    “This is the first complete description of thermodynamic forces controlling this archetypical metal–insulator transition,” said Budai.

    The team’s current accomplishment was made possible by a novel combination of X-ray and neutron scattering tools, developed within the decade, that enabled lattice dynamics measurements and a calculation technique that Olle Hellman of Linköping University in Sweden recently developed to capture anharmonicity (a measure of nonlinearity in bond forces between atoms). It’s especially important that the calculations, performed by Hong, agree well with experiments because they can now be used to make new predictions for other materials.

    The ORNL team came up with the idea to measure “incoherent” neutron scattering (each atom scatters independently) at ORNL’s Spallation Neutron Source (SNS) to determine the phonon spectra at many temperatures, and to measure coherent inelastic and diffuse X-ray scattering at Argonne National Laboratory’s Advanced Photon Source (APS) to probe collective vibrations in pristine crystals. Neutron measurements were enabled by the SNS’s large neutron flux, and X-ray measurements benefited from the high-resolution enabled by the high APS brightness. SNS and APS are DOE Office of Science User Facilities.

    Among ORNL collaborators, Robert McQueeney made preliminary X-ray measurements and Lynn Boatner grew crystals for the experiment. Eliot Specht mapped phonon dispersions with diffuse X-ray scattering. Michael Manley and Olivier Delaire determined the phonon spectra using inelastic neutron scattering. Postdoctoral researcher Chen Li helped make experimental measurements and provided neutron expertise. Douglas Abernathy provided expertise with experimental beam lines, as did Argonne’s Ayman Said, Bogdan Leu and Jonathan Tischler.

    Their measurements revealed that phonons with unusually large atomic vibrations and strong anharmonicity are responsible for about two-thirds of the total heat that each atom transfers during the lattice’s transition to a metallic phase.

    “The entropy of the lattice vibrations competes against and overcomes the electronic energy, and that’s why the metallic phase is stabilized at high temperatures in vanadium dioxide,” Budai summed up. “Using comprehensive measurements and new calculations, we’re the first to close this gap and present convincing arguments for the dominant influence of low-energy, strongly anharmonic phonons.”

    Atomic underpinnings

    The findings reveal that the vanadium-dioxide lattice is anharmonic in the metal state. Think of atoms connected by bonds in a lattice as masses connected by springs. Pull on a mass and let go; it bounces. If the force is proportional to the distance a mass is pulled, the interaction is harmonic. Vanadium dioxide’s anharmonicity greatly complicates the way the lattice wiggles upon heating.

    “A material that only had harmonic connections between atoms would have no thermal expansion; if you heat it up, it would stay the same size,” said Budai. Most materials, it turns out, are somewhat anharmonic. Metals, for example, expand when heated.

    When heated to 340 kelvin (just above room temperature), vanadium dioxide turns from insulator to metal. Below 340 K, its lowest-energy lattice configuration is akin to a leaning cardboard box. Above 340 K, where entropy due to phonon vibrations dominates, its preferred state has all bond angles at 90 degrees. The phase change is fully reversible, so cooling a metal below the transition temperature reverts it to an insulator, and heating it past this point turns it metallic.

    In metallic vanadium dioxide, each vanadium atom has one electron that is free to roam. In contrast, in insulating vanadium dioxide, that electron gets trapped in a chemical bond that forms vanadium dimers. “For understanding the atomic mechanisms, we needed theory,” Budai said.

    That’s where Hong, a theorist at ORNL’s Center for Accelerating Materials Modeling, made critical contributions with quantum molecular dynamics calculations. He ran large-scale simulations at the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility at Lawrence Berkeley National Laboratory, using 1 million computing-core hours to simulate the lattice dynamics of metal and insulator phases of vanadium dioxide. All three types of experiments agreed well with Hong’s simulations. In addition, his calculation further reveals how phonon and electron contributions compete in the different phases.

    Predicting new materials

    “The theory not only provides us deep understanding of the experimental observations and reveals fundamental principles behind them,” said Hong, “but also gives us predictive modeling, which will accelerate fundamental and technological innovation by giving efficient strategies to design new materials with remarkable properties.”

    Many other materials besides vanadium dioxide show a metal-to-insulator transition; however, the detailed role of lattice vibrations in controlling phase stability remains largely unknown. In future studies of other transition metal oxides, the researchers will continue to investigate the impact of anharmonic phonons on physical properties such as electrical conductivity and thermal transport. This fundamental research will help guide the development of improved energy-efficient materials.

    The title of the paper is “Metallization of vanadium dioxide driven by large phonon entropy.” DOE’s Office of Science (Basic Energy Sciences, Materials Science and Engineering Division) sponsored the research. Li received Laboratory Directed Research and Development funds.

    DOE Office of Science User Facilities were critical to the work. Neutron scattering measurements were obtained using the ARCS instrument at the SNS at ORNL; X-ray scattering measurements were obtained using the HERIX and 33-BM beam lines at the APS at Argonne National Laboratory. Theoretical calculations were performed using the National Energy Research Scientific Computing Center at Lawrence Berkeley National Laboratory. All are DOE Office of Science User Facilities.

    UT-Battelle manages ORNL for DOE’s Office of Science. The single largest supporter of basic research in the physical sciences in the United States, the Office of Science is working to address some of the most pressing challenges of our time.—by Dawn Levy

    ###

    CAPTION/CREDIT: Vanadium atoms (blue) have unusually large thermal vibrations that stabilize the metallic state of a vanadium dioxide crystal. Red depicts oxygen atoms. Image credit: Oak Ridge National Laboratory

    NOTE TO EDITORS: You may read other press releases from Oak Ridge National Laboratory or learn more about the lab at http://www.ornl.gov/news. Additional information about ORNL is available at the sites below:

    Twitter - http://twitter.com/oakridgelabnews

    RSS Feeds - http://www.ornl.gov/ornlhome/rss_feeds.shtml

    Flickr - http://www.flickr.com/photos/oakridgelab

    YouTube - http://www.youtube.com/user/OakRidgeNationalLab

    LinkedIn - http://www.linkedin.com/companies/oak-ridge-national-laboratory

    Facebook - http://www.facebook.com/Oak.Ridge.National.Laboratory

    • other-fb
    • other-tw
    X
    X
    X
    • Filters

    • × Clear Filters
    Radiation Damage Lowers Melting Point of Potential Fusion Reactor Material

    Radiation Damage Lowers Melting Point of Potential Fusion Reactor Material

    SLAC's 'electron camera' films rapidly melting tungsten and reveals atomic-level material behavior that could impact the design of future reactors.

    Tapping the power of AI and high-performance computing to extend evolution to superconductors

    Tapping the power of AI and high-performance computing to extend evolution to superconductors

    In a new study from the U.S. Department of Energy's (DOE) Argonne National Laboratory, researchers used the power of artificial intelligence and high-performance supercomputers to introduce and assess the impact of different configurations of defects on the performance of a superconductor.

    Finding the Cause of Capacity Loss in a Metal-Oxide Battery Material

    Finding the Cause of Capacity Loss in a Metal-Oxide Battery Material

    The formation and thickening of internal and surface barriers during battery charge and discharge cycles limits electrochemical reactions in a lithium-ion battery with an iron-oxide electrode.

    Raised on Copper: A New Material for Tougher Devices

    Raised on Copper: A New Material for Tougher Devices

    Discovery of new boron-containing phase opens the door for resilient flexible electronics.

    Weighty Polymers Impact Battery Stability and Safety

    Weighty Polymers Impact Battery Stability and Safety

    Materials prevent battery failure by inhibiting tree-like growths.

    Science Snapshots: Lithium Under Pressure, A 'Silver Bullet' for the Conversion of Carbon Dioxide, Understanding Microbiomes for  Wastewater Treatment

    Science Snapshots: Lithium Under Pressure, A 'Silver Bullet' for the Conversion of Carbon Dioxide, Understanding Microbiomes for Wastewater Treatment

    Researchers at Berkeley Lab's Molecular Foundry have predicted fascinating new properties of lithium; a powerful combination of experiment and theory has revealed atomic-level details about how silver helps transform carbon dioxide gas into a reusable form; new study reports the first comprehensive

    Summit Charts a Course to Uncover the Origins of Genetic Diseases

    Summit Charts a Course to Uncover the Origins of Genetic Diseases

    A team led by Ivaylo Ivanov of Georgia State University used the 200-petaflop IBM AC922 Summit system, the world's smartest and most powerful supercomputer, to develop an integrative model of the transcription preinitiation complex (PIC), a complex of proteins vital to gene expression.

    A New Collider Concept Would Take Quantum Theories to an Extreme

    A New Collider Concept Would Take Quantum Theories to an Extreme

    A new idea for smashing beams of elementary particles into one another could reveal how light and matter interact under extreme conditions that may exist on the surfaces of exotic astrophysical objects, in powerful cosmic light bursts and star explosions, in next-generation particle colliders and in hot, dense fusion plasma.

    Unexpected observation of ice at low temperature, high pressure questions ice, water theory

    Unexpected observation of ice at low temperature, high pressure questions ice, water theory

    Scientists at Oak Ridge National Laboratory studying super-cold states of water discovered a pathway to the unexpected formation of dense, crystalline phases of ice thought to exist beyond Earth's limits. Their findings, reported in Nature, challenge accepted theories and could lead to better understanding of ice found on other planets, moons and elsewhere in space.

    New Argonne Battery Design Offers ​"Solid" Advantage

    New Argonne Battery Design Offers ​"Solid" Advantage

    In a new study from the U.S. Department of Energy's (DOE) Argonne National Laboratory, researchers have identified a new boundary layer that emerges between a lithium metal anode and a lithium transition metal oxide (LLZO) electrolyte, potentially leading to improved battery stability.


    • Filters

    • × Clear Filters
    Ames Laboratory names James Morris Chief Research Officer

    Ames Laboratory names James Morris Chief Research Officer

    Dr. James Morris has been named Chief Research Officer at the Department of Energy's (DOE) Ames Laboratory. His appointment follows an extensive search and will be effective June 17, 2019.

    Four scientists at PPPL awarded national and international honors

    Four scientists at PPPL awarded national and international honors

    Feature profiles four PPPL scientists who have received high honors.

    Brookhaven's Mircea Cotlet Named a Battelle "Inventor of the Year"

    Brookhaven's Mircea Cotlet Named a Battelle "Inventor of the Year"

    The global science and technology organization Battelle recognized materials scientist Mircea Cotlet of Brookhaven Lab's Center for Functional Nanomaterials for his research in applying self-assembly methods to control the interfaces between nanomaterials and other light-interacting components.

    Berkeley Lab Project to Pinpoint Methane 'Super Emitters'

    Berkeley Lab Project to Pinpoint Methane 'Super Emitters'

    Methane, a potent greenhouse gas that traps about 30 times more heat than carbon dioxide, is commonly released from rice fields, dairies, landfills, and oil and gas facilities - all of which are plentiful in California. Now Berkeley Lab has been awarded $6 million by the state to find "super emitters" of methane in an effort to quantify and potentially mitigate methane emissions.

    Cryogenics equipment maker licenses ORNL auto-fill method for more efficient liquid helium use

    Cryogenics equipment maker licenses ORNL auto-fill method for more efficient liquid helium use

    Advanced Research Systems has licensed an ORNL technology designed to automatically refill liquid helium used in laboratory equipment for low-temperature scientific experiments, which will reduce downtime, recover more helium and increase overall efficiency.

    New Argonne coating could have big implications for lithium batteries

    New Argonne coating could have big implications for lithium batteries

    In a new discovery, scientists at the U.S. Department of Energy's (DOE) Argonne National Laboratory have developed a new cathode coating by using an oxidative chemical vapor deposition technique. The new coating can keep the battery's cathode electrically and ionically conductive and ensures that the battery stays safe after many cycles.

    Argonne's Chain Reaction Innovations appoints first advisory council

    Argonne's Chain Reaction Innovations appoints first advisory council

    World-class energy leaders will offer their expertise to Chain Reaction Innovations (CRI), the entrepreneurship program at the U.S. Department of Energy's Argonne National Laboratory, as part of a new Advisory Council announced today. CRI has named 14 Advisory Council members, including investors, industry experts and business executives, to help guide its growth and strategy.

    ORNL, Lincoln Electric to Advance Large-Scale Metal Additive Manufacturing Technology

    ORNL, Lincoln Electric to Advance Large-Scale Metal Additive Manufacturing Technology

    The new agreement builds upon ORNL and Lincoln Electric's previous developments by extending additive technology to new materials, leveraging data analytics and enabling rapid manufacture of metal components in excess of 100 pounds per hour.

    Students from Minnesota and Massachusetts Win DOE's 29th National Science Bowl(r)

    Students from Wayzata High School in Plymouth, Minnesota, won the 2019 U.S. Department of Energy (DOE) National Science Bowl(r) (NSB) today in Washington, D.C. In the middle school competition, students from Jonas Clarke Middle School in Lexington, Massachusetts, took home first place.

    Five new innovators join Chain Reaction Innovations in third cohort

    Five new innovators join Chain Reaction Innovations in third cohort

    Five new innovators will be joining Chain Reaction Innovations (CRI), the entrepreneurship program at the U.S. Department of Energy's (DOE's) Argonne National Laboratory, as part of the elite program's third cohort. Announced on Monday, April 22, these innovators were selected following an extensive national solicitation process and two-part pitch competition, with reviews from industry experts, investors, scientists and engineers.


    • Filters

    • × Clear Filters
    Tiny Vortices Could One Day Haul Microscopic Cargo

    Tiny Vortices Could One Day Haul Microscopic Cargo

    The behavior of active magnetic liquids suggests new pathways to transport particles across surfaces and build materials that self-heal.

    Raised on Copper: A New Material for Tougher Devices

    Raised on Copper: A New Material for Tougher Devices

    Discovery of new boron-containing phase opens the door for resilient flexible electronics.

    Weighty Polymers Impact Battery Stability and Safety

    Weighty Polymers Impact Battery Stability and Safety

    Materials prevent battery failure by inhibiting tree-like growths.

    Laser Focus Shines Light on How Nanoparticles Form

    Laser Focus Shines Light on How Nanoparticles Form

    Titan supercomputer tells origin story of nanoparticle size distributions with large-scale simulations.

    Improving Isotope Supply for a Cancer-Fighting Drug

    Improving Isotope Supply for a Cancer-Fighting Drug

    Production of actinium-227 ramps up for use in a drug to fight prostate cancer that has spread to bone.

    Extracting Signs of the Elusive Neutrino

    Extracting Signs of the Elusive Neutrino

    Scientists use software to "develop" images that trace neutrinos' interactions in a bath of cold liquid argon.

    Slow Charge Generation Plays Big Role in Model Material for Solar Cells

    Slow Charge Generation Plays Big Role in Model Material for Solar Cells

    Insight about energy flow in copper-based material could aid in creating efficient molecular electronics.

    Capturing Energy Flow in a Plasma by Measuring Scattered Light

    Capturing Energy Flow in a Plasma by Measuring Scattered Light

    First measurements of heat flux in plasmas experientially sheds light on models relying on classical thermal transport.

    Artificial Intelligence and Deep Learning Accelerate Efforts to Develop Clean, Virtually Limitless Fusion Energy

    Artificial Intelligence and Deep Learning Accelerate Efforts to Develop Clean, Virtually Limitless Fusion Energy

    The Fusion Recurrent Neural Network reliably forecasts disruptive and destructive events in tokamaks.

    Spin Flipper Upends Protons

    Spin Flipper Upends Protons

    The spin direction of protons was reversed, for the first time, using a nine-magnet device, potentially helping tease out details about protons that affect medical imaging and more.


    Spotlight

    ILSAMP Symposium showcases benefits for diverse students, STEM pipeline
    Monday May 20, 2019, 12:05 PM

    ILSAMP Symposium showcases benefits for diverse students, STEM pipeline

    Argonne National Laboratory

    Integrating Scientific Computing into Science Curricula
    Monday May 13, 2019, 11:05 AM

    Integrating Scientific Computing into Science Curricula

    Brookhaven National Laboratory

    Students from Minnesota and Massachusetts Win DOE's 29th National Science Bowl(r)
    Monday April 29, 2019, 02:05 PM

    Students from Minnesota and Massachusetts Win DOE's 29th National Science Bowl(r)

    Department of Energy, Office of Science

    DOE's Science Graduate Student Research Program Selects 70 Students to Pursue Research at DOE Laboratories
    Friday April 12, 2019, 03:05 PM

    DOE's Science Graduate Student Research Program Selects 70 Students to Pursue Research at DOE Laboratories

    Department of Energy, Office of Science

    Young Women's Conference in STEM seeks to change the statistics one girl at a time
    Thursday March 28, 2019, 03:05 PM

    Young Women's Conference in STEM seeks to change the statistics one girl at a time

    Princeton Plasma Physics Laboratory

    Students team with Argonne scientists and engineers to learn about STEM careers
    Tuesday March 12, 2019, 05:05 PM

    Students team with Argonne scientists and engineers to learn about STEM careers

    Argonne National Laboratory

    Lynbrook High wins 2019 SLAC Regional Science Bowl competition
    Wednesday February 13, 2019, 02:05 PM

    Lynbrook High wins 2019 SLAC Regional Science Bowl competition

    SLAC National Accelerator Laboratory

    Equipping the next generation for a technological revolution
    Thursday January 24, 2019, 01:05 PM

    Equipping the next generation for a technological revolution

    Argonne National Laboratory

    Chemistry intern inspired by Argonne's real-world science
    Friday January 18, 2019, 05:05 PM

    Chemistry intern inspired by Argonne's real-world science

    Argonne National Laboratory

    Chasing a supernova
    Friday January 18, 2019, 04:05 PM

    Chasing a supernova

    Argonne National Laboratory

    Argonne intern streamlines the beamline
    Tuesday January 08, 2019, 02:05 PM

    Argonne intern streamlines the beamline

    Argonne National Laboratory

    Research on Light-Matter Interaction Could Lead to Improved Electronic and Optoelectronic Devices
    Thursday October 11, 2018, 04:00 PM

    Research on Light-Matter Interaction Could Lead to Improved Electronic and Optoelectronic Devices

    Rensselaer Polytechnic Institute (RPI)

    Innovating Our Energy Future
    Wednesday October 03, 2018, 07:05 PM

    Innovating Our Energy Future

    Oregon State University, College of Engineering

    Physics graduate student takes her thesis research to a Department of Energy national lab
    Tuesday October 02, 2018, 03:05 PM

    Physics graduate student takes her thesis research to a Department of Energy national lab

    University of Alabama at Birmingham

    Friday September 21, 2018, 01:05 PM

    "Model" students enjoy Argonne campus life

    Argonne National Laboratory

    Writing Code for a More Skilled and Diverse STEM Workforce
    Thursday September 06, 2018, 01:05 PM

    Writing Code for a More Skilled and Diverse STEM Workforce

    Brookhaven National Laboratory

    New graduate student summer school launches at Princeton Plasma Physics Laboratory
    Tuesday September 04, 2018, 11:30 AM

    New graduate student summer school launches at Princeton Plasma Physics Laboratory

    Princeton Plasma Physics Laboratory

    The Gridlock State
    Friday August 31, 2018, 06:05 PM

    The Gridlock State

    California State University (CSU) Chancellor's Office

    Meet Jasmine Hatcher and Trishelle Copeland-Johnson
    Friday August 31, 2018, 02:05 PM

    Meet Jasmine Hatcher and Trishelle Copeland-Johnson

    Brookhaven National Laboratory

    Argonne hosts Modeling, Experimentation and Validation Summer School
    Friday August 24, 2018, 11:05 AM

    Argonne hosts Modeling, Experimentation and Validation Summer School

    Argonne National Laboratory

    Students affected by Hurricane Maria bring their research to SLAC
    Wednesday August 22, 2018, 01:05 PM

    Students affected by Hurricane Maria bring their research to SLAC

    SLAC National Accelerator Laboratory

    Brookhaven Lab Pays Tribute to 2018 Summer Interns
    Wednesday August 22, 2018, 10:05 AM

    Brookhaven Lab Pays Tribute to 2018 Summer Interns

    Brookhaven National Laboratory

    Changing How Buildings Are Made
    Monday August 20, 2018, 12:05 PM

    Changing How Buildings Are Made

    Washington University in St. Louis

    CSUMB Selected to Host Architecture at Zero Competition in 2019
    Thursday August 16, 2018, 12:05 PM

    CSUMB Selected to Host Architecture at Zero Competition in 2019

    California State University, Monterey Bay

    Department of Energy Invests $64 Million in Advanced Nuclear Technology
    Friday July 20, 2018, 03:00 PM

    Department of Energy Invests $64 Million in Advanced Nuclear Technology

    Rensselaer Polytechnic Institute (RPI)

    Professor Miao Yu Named the Priti and Mukesh Chatter '82 Career Development Professor
    Thursday July 19, 2018, 05:00 PM

    Professor Miao Yu Named the Priti and Mukesh Chatter '82 Career Development Professor

    Rensselaer Polytechnic Institute (RPI)

    2018 RHIC & AGS Annual Users' Meeting: 'Illuminating the QCD Landscape'
    Tuesday July 03, 2018, 11:05 AM

    2018 RHIC & AGS Annual Users' Meeting: 'Illuminating the QCD Landscape'

    Brookhaven National Laboratory

    Argonne welcomes <em>The Martian</em> author Andy Weir
    Friday June 29, 2018, 06:05 PM

    Argonne welcomes The Martian author Andy Weir

    Argonne National Laboratory

    Creating STEM Knowledge and Innovations to Solve Global Issues Like Water, Food, and Energy
    Monday June 18, 2018, 09:55 AM

    Creating STEM Knowledge and Innovations to Solve Global Issues Like Water, Food, and Energy

    Illinois Mathematics and Science Academy (IMSA)

    Professor Emily Liu Receives $1.8 Million DoE Award for Solar Power Systems Research
    Friday June 15, 2018, 10:00 AM

    Professor Emily Liu Receives $1.8 Million DoE Award for Solar Power Systems Research

    Rensselaer Polytechnic Institute (RPI)

    Celebrating 40 years of empowerment in science
    Thursday June 07, 2018, 03:05 PM

    Celebrating 40 years of empowerment in science

    Argonne National Laboratory

    Introducing Graduate Students Across the Globe to Photon Science
    Monday May 07, 2018, 10:30 AM

    Introducing Graduate Students Across the Globe to Photon Science

    Brookhaven National Laboratory

    Students from Massachusetts and Washington Win DOE's 28th National Science Bowl(r)
    Wednesday May 02, 2018, 04:05 PM

    Students from Massachusetts and Washington Win DOE's 28th National Science Bowl(r)

    Department of Energy, Office of Science

    The Race for Young Scientific Minds
    Thursday April 12, 2018, 07:05 PM

    The Race for Young Scientific Minds

    Argonne National Laboratory

    Q&A: Al Ashley Reflects on His Efforts to Diversify SLAC and Beyond
    Wednesday March 14, 2018, 02:05 PM

    Q&A: Al Ashley Reflects on His Efforts to Diversify SLAC and Beyond

    SLAC National Accelerator Laboratory

    Insights on Innovation in Energy, Humanitarian Aid Highlight UVA Darden's Net Impact Week
    Thursday February 15, 2018, 12:05 PM

    Insights on Innovation in Energy, Humanitarian Aid Highlight UVA Darden's Net Impact Week

    University of Virginia Darden School of Business

    Ivy League Graduate, Writer and Activist with Dyslexia Visits CSUCI to Reframe the Concept of Learning Disabilities
    Friday February 09, 2018, 11:05 AM

    Ivy League Graduate, Writer and Activist with Dyslexia Visits CSUCI to Reframe the Concept of Learning Disabilities

    California State University, Channel Islands

    Photographer Adam Nadel Selected as Fermilab's New Artist-in-Residence for 2018
    Wednesday January 17, 2018, 12:05 PM

    Photographer Adam Nadel Selected as Fermilab's New Artist-in-Residence for 2018

    Fermi National Accelerator Laboratory (Fermilab)

    Fermilab Computing Partners with Argonne, Local Schools for Hour of Code
    Wednesday January 17, 2018, 12:05 PM

    Fermilab Computing Partners with Argonne, Local Schools for Hour of Code

    Fermi National Accelerator Laboratory (Fermilab)

    Q&A: Sam Webb Teaches X-Ray Science from a Remote Classroom
    Wednesday December 20, 2017, 01:05 PM

    Q&A: Sam Webb Teaches X-Ray Science from a Remote Classroom

    SLAC National Accelerator Laboratory

    The Future of Today's Electric Power Systems
    Monday December 18, 2017, 01:05 PM

    The Future of Today's Electric Power Systems

    Rensselaer Polytechnic Institute (RPI)

    Supporting the Development of Offshore Wind Power Plants
    Monday December 18, 2017, 12:05 PM

    Supporting the Development of Offshore Wind Power Plants

    Rensselaer Polytechnic Institute (RPI)

    Stairway to Science
    Tuesday October 03, 2017, 01:05 PM

    Stairway to Science

    Argonne National Laboratory

    After-School Energy Rush
    Thursday September 28, 2017, 12:05 PM

    After-School Energy Rush

    Argonne National Laboratory

    Bringing Diversity Into Computational Science Through Student Outreach
    Thursday September 28, 2017, 10:05 AM

    Bringing Diversity Into Computational Science Through Student Outreach

    Brookhaven National Laboratory

    From Science to Finance: SLAC Summer Interns Forge New Paths in STEM
    Thursday September 21, 2017, 03:05 PM

    From Science to Finance: SLAC Summer Interns Forge New Paths in STEM

    SLAC National Accelerator Laboratory





    Showing results

    0-4 Of 2215