YBa2Cu3O6.92高温超导多晶在弱磁场中冷却时的磁通钉扎

IF 1 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

Journal of Experimental and Theoretical Physics Pub Date : 2023-10-26 DOI:10.1134/S1063776123090157

N. G. Trusevich, S. Yu. Gavrilkin, L. I. Trakhtenberg

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引用次数: 0

摘要

研究了细晶粒YBa2Cu3O6.92高温超导材料在弱磁场中冷却过程中的行为。在超导转变温度以下的范围内，对样品的磁化强度进行了综合分析，晶粒尺寸与磁场穿透深度相当。当晶粒尺寸小于0.5μm时，涡流不会固定在钉扎中心，磁化的温度依赖性完全由晶粒的筛选和晶间超导电流的出现温度决定。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Pinning of a Magnetic Flux in Polycrystalline YBa2Cu3O6.92 HTSC during Cooling in a Weak Magnetic Field

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Pinning of a Magnetic Flux in Polycrystalline YBa2Cu3O6.92 HTSC during Cooling in a Weak Magnetic Field

The behavior of fine-grained YBa₂Cu₃O_6.92 HTSCs during cooling in a weak magnetic field is investigated. The magnetization of samples, the crystallite sizes is which are comparable with the magnetic field penetration depth, is comprehensively analyzed in the range below the superconducting transition temperature. When the crystallite size is smaller than 0.5 μm, vortices are shown not to be fixed to pinning centers, and the temperature dependence of magnetization is completely determined by the screening of crystallites and the temperature of appearance of intercrystallite superconducting currents.

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来源期刊

Journal of Experimental and Theoretical Physics 物理-物理：综合

CiteScore

1.90

自引率

9.10%

发文量

130

审稿时长

3-6 weeks

期刊介绍： Journal of Experimental and Theoretical Physics is one of the most influential physics research journals. Originally based on Russia, this international journal now welcomes manuscripts from all countries in the English or Russian language. It publishes original papers on fundamental theoretical and experimental research in all fields of physics: from solids and liquids to elementary particles and astrophysics.