Superconductors - Opening the gap

被引：13

作者：

Coleman, P ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

来源：

NATURE | 1998年 / 392卷 / 6672期

关键词：

D O I：

10.1038/32306

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The ceramic high-temperature superconductors, discovered 11 years ago, behave like two-dimensional metals when they are above their superconducting transition temperature. The electrons are confined to move in parallel planes, which restricts their momentum distribution to a two-dimensional zone in momentum space. Angle-resolved photoemission has been used to show that this distribution is gradually eaten away as the temperature is lowered, showing that some sort of electron correlations begin before superconductivity sets in.

引用

页码：134 / 135

页数：2

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