|
|
Article: Superconductors with electrons in charge.
- Article from:
- Science News
- Article date:
- March 4, 1989
CopyrightCOPYRIGHT 1989 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
Superconductors with electrons in charge
The discovery of a new family of ceramic superconductors that lose all resistance to the flow of electrical current at a lowly 24 kelvins (-416[deg.]F) seems a much less glamorous result than achieving a record-high superconducting transition temperature. Nevertheless, these new compounds, in which electrons carry the superconducting current, may provide important clues that how high-temperature superconductors work. In all previously known examples, "holes" (the absence of electrons) in the electronic structure of the material's crystal lattice are responsible for the superconducting current.
Discovered by Yoshi ...