Minimal surfaces & the intermediate state of type-I superconductors

IF 1.3 3区物理与天体物理 Q4 PHYSICS, APPLIED

Physica C-superconductivity and Its Applications Pub Date : 2024-12-27 DOI:10.1016/j.physc.2024.1354641

Pavol Valko , Thomas A. Girard

引用次数: 0

Abstract

The geometry of the intermediate state (IS) flux structures in type-I superconductors, observed during early stages of magnetic flux penetration induced by an externally applied perpendicular magnetic field, is analysed using the concept of minimal surfaces. This approach is based on the assumption that local free energy minimization, for each individual flux structure, dominates when the magnetic flux regions are sufficiently spatially separated; that is, when the global free energy minimization predicts very low periodicity in the intermediate state of the sample.

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在外部垂直磁场诱导磁通穿透的早期阶段，观察到 I 型超导体中的中间态（IS）磁通结构的几何形状，我们利用最小表面的概念对其进行了分析。这种方法基于以下假设：当磁通量区域在空间上充分分离时，每个单独磁通量结构的局部自由能最小化占主导地位；也就是说，当全局自由能最小化预测样品中间状态的周期性非常低时。

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.