直接观测特殊非均质晶体 EuRbFe4As4 中的阿布里科索夫涡旋钉扎现象

IF 1.4 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY JETP Letters Pub Date : 2024-05-14 DOI:10.1134/S0021364024600514

M. S. Sidelnikov, A. V. Palnichenko, K. S. Pervakov, V. A. Vlasenko, I. I. Zverkova, L. S. Uspenskaya, V. M. Pudalov, L. Ya. Vinnikov

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摘要

在两相晶体 EuRbFe4As4/EuFe2As2 (1144/122)中，使用磁性纳米粒子装饰的方法发现了阿布里科索夫涡旋的线性有序性，这在超导锑化物中是不常见的。沿着正交 EuFe2As2 相的晶体学〈110〉轴观察到的涡流链，可以解释为超导相 1144 中的涡流钉在与非超导相 122 的孪生边界相关的线性缺陷上。

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Direct Observation of Pinning of Abrikosov Vortices in a Specially Inhomogenious Crystal EuRbFe4As4

In the two-phase crystal EuRbFe₄As₄/EuFe₂As₂ (1144/122), a linear ordering of Abrikosov vortices, uncharacteristic for superconducting pnictides, has been found using the method of decorating with magnetic nanoparticles. The observed chains of vortices directed along crystallographic 〈110〉 axes of the orthorhombic EuFe₂As₂ phase are explained by pinning of vortices in the superconducting phase 1144 on linear defects associated with the twin boundaries of the non-superconducting 122 phase.

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来源期刊

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.