Do superconductors violate Lenz's law? Body rotation under field cooling and theoretical implications

被引：21

作者：

Hirsch, J. E. ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

来源：

PHYSICS LETTERS A | 2007年 / 366卷 / 06期

关键词：

D O I：

10.1016/j.physleta.2007.03.017

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

When a magnetic field is turned on, a superconducting body acquires an angular momentum in direction opposite to the applied field. This gyromagnetic effect has been established experimentally and is understood theoretically. However, the corresponding situation when a superconductor is cooled in a pre-existent field has not been examined. We argue that the conventional theory of superconductivity does not provide a prediction for the outcome of that experiment that does not violate fundamental laws of physics, either Lenz's law or conservation of angular momentum. The theory of hole superconductivity predicts an outcome of this experiment consistent with the laws of physics. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：615 / 619

页数：5