Does the Meissner effect require radial charge flow?

IF 1.3 3区物理与天体物理 Q4 PHYSICS, APPLIED

Physica C-superconductivity and Its Applications Pub Date : 2025-05-05 DOI:10.1016/j.physc.2025.1354724

J.E. Hirsch

引用次数: 0

Abstract

The conventional theory of superconductivity is believed to account for the Meissner effect without radial charge flow. Instead, we have argued in earlier work that the Meissner effect is impossible in the absence of radial flow of charge because of Alfven’s theorem. Here I discuss different sample geometries that could help to determine experimentally whether or not radial charge flow is necessary for superconductors to expel magnetic fields.

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迈斯纳效应需要径向电荷流吗？

传统的超导理论被认为可以解释没有径向电荷流的迈斯纳效应。相反，我们在早期的工作中认为，由于阿尔芬定理，在没有径向电荷流的情况下，迈斯纳效应是不可能的。在这里，我讨论不同的几何形状的样品，可以帮助实验确定径向电荷流是否是超导体驱逐磁场所必需的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physica C-superconductivity and Its Applications 物理-物理：应用

CiteScore

2.70

自引率

11.80%

发文量

102

审稿时长

66 days

期刊介绍： Physica C (Superconductivity and its Applications) publishes peer-reviewed papers on novel developments in the field of superconductivity. Topics include discovery of new superconducting materials and elucidation of their mechanisms, physics of vortex matter, enhancement of critical properties of superconductors, identification of novel properties and processing methods that improve their performance and promote new routes to applications of superconductivity. The main goal of the journal is to publish: 1. Papers that substantially increase the understanding of the fundamental aspects and mechanisms of superconductivity and vortex matter through theoretical and experimental methods. 2. Papers that report on novel physical properties and processing of materials that substantially enhance their critical performance. 3. Papers that promote new or improved routes to applications of superconductivity and/or superconducting materials, and proof-of-concept novel proto-type superconducting devices. The editors of the journal will select papers that are well written and based on thorough research that provide truly novel insights.