• About
    • About Us
    • What We Cover
  • Advertise
    • Advertise
    • Our Advertisers
  • Contact
  • Donate
  • Send News
  • Subscribe

Oak Ridge Today

  • Home
  • Sign in
  • News
    • Business
    • Community
    • Education
    • Government
    • Health
    • Police and Fire
    • U.S. Department of Energy
    • Weather
  • Sports
    • High School
    • Middle School
    • Recreation
    • Rowing
    • Youth
  • Entertainment
    • Arts
    • Dancing
    • Movies
    • Music
    • Television
    • Theater
  • Premium Content
  • Obituaries
  • Classifieds




ORNL study advances quest for better superconducting materials

Posted at 11:36 pm January 28, 2014
By Oak Ridge National Laboratory Leave a Comment

Superconductivity Pan Defects

Minghu Pan’s image of “clover-like” atomic defects—an example is circled—that result in strong superconductivity. (Photo courtesy ORNL)

Nearly 30 years after the discovery of high-temperature superconductivity, many questions remain, but an Oak Ridge National Laboratory team is providing insight that could lead to better superconductors.

Their work, published in Physical Review Letters, examines the role of chemical dopants, which are essential to creating high-temperature superconductors—materials that conduct electricity without resistance. The role of dopants in superconductors is particularly mysterious as they introduce non-uniformity and disorder into the crystal structure, which increases resistivity in non-superconducting materials.

By gaining a better understanding of how and why chemical dopants alter the behavior of the original (parent) material, scientists believe they can design superconductors that work at higher temperatures. This would make them more practical for real-world wire applications because it would lessen the extreme cooling required for conventional superconducting material. Existing “high-temperature superconductors” operate at temperatures in the range of negative 135 degrees Celsius and below. [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, Science, U.S. Department of Energy Tagged With: Athena Safa-Sefat, atomic defect, Bayrammurad Saparov, chemical dopants, Claudia Cantoni, crystal, DOE, DOE Information Center, dopants, high-temperature superconductivity, high-temperature superconductors, Jonathan Mitchell, Krzysztof Gofryk, Local inhomogeneity and filamentary superconductivity in Pr-doped CaFe2As2, Materials Science and Technology Division, Minghu Pan, Oak Ridge National Laboratory, ORNL, Physical Review Letters, superconductors, U.S. Department of Energy

Search Oak Ridge Today

Classifieds

Public Notice: NNSA announces no significant impact of Y-12 Development Organization operations at Horizon Center

AVAILABILITY OF THE FINAL ENVIRONMENTAL ASSESSMENT FOR THE OFFSITE HOUSING OF THE Y-12 DEVELOPMENT … [Read More...]

ADFAC seeks contractors for five homes

Aid to Distressed Families of Appalachian Counties (ADFAC) is a non-profit community based agency, … [Read More...]

Public notice: Draft environmental assessment for Y-12 Development Organization at Horizon Center

AVAILABILITY OF THE DRAFT ENVIRONMENTAL ASSESSMENT FOR THE OFFSITE HOUSING OF THE Y-12 DEVELOPMENT … [Read More...]

Recent Posts

  • Rocky Top woman pleads guilty to murder, sentenced to life
  • REAC/TS welcomes new team members: John Crapo, Josh Hayes and David Quillen
  • NASA Postdoctoral Program seeks early career and senior scientists for prestigious fellowships at its locations across the U.S.
  • ORAU names Brandon Criswell associate general counsel
  • Update on downtown Oak Ridge Tuesday
  • TVA has virtual open house for Clinch River Nuclear Site
  • Science and supercomputers at ORNL topic of Mar. 8 talk
  • First Presbyterian offers free meals & groceries on Mar. 10
  • Secret City Academy student charged with terrorism after alleged shooting, bomb threats
  • ORHS Masquers presents ‘Into the Woods’
A Twitter List by OakRidgeToday

Recent Comments

  • Matt Bailey on Dodson also wants to serve as mayor pro tem
  • Mark Caldwell on Dodson also wants to serve as mayor pro tem
  • Matt Bailey on Dodson also wants to serve as mayor pro tem
  • Mark Caldwell on Dodson also wants to serve as mayor pro tem
  • Matt Bailey on Dodson also wants to serve as mayor pro tem
  • Tracy Powers on Planning Commission to consider Main Street apartments, plan revisions
  • johnhuotari on Four incumbents re-elected to Oak Ridge City Council
  • Levi D. Smith on Four incumbents re-elected to Oak Ridge City Council
  • samuel hopwood on Housing: Apartments proposed on former AMSE site
  • Matt Bailey on Robin Smith named Oak Ridge police chief

About Us

About Oak Ridge Today
What We Cover

How To

Advertise
Subscribe

Contact Us

Contact Oak Ridge Today

Copyright © 2022 Oak Ridge Today