Temperature Dependence of Grain-Boundary Critical Current in K0.8Fe1.7(Se0.73S0.27)2 and CaKFe4As4

IF 0.7 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Bulletin of the Lebedev Physics Institute Pub Date : 2025-08-20 DOI:10.3103/S1068335625602390

T. E. Kuzmicheva, S. A. Kuzmichev, A. D. Ilina, I. A. Nikitchenkov, Ye. O. Rakhmanov, A. I. Shilov, I. V. Morozov, A. S. Medvedev, V. A. Vlasenko, K. S. Pervakov

引用次数: 0

Abstract

Using tunneling spectroscopy of break-junctions, we have studied the temperature behavior of the critical current I_c(T) at zero magnetic field for alkali-metal based superconductors: composite K_0.8Fe_1.7(Se_0.73S_0.27)₂ selenides with natural phase separation and polycrystalline samples of CaKFe₄As₄ pnictides. The measured bulk and intergrain I_c(T) dependences are analyzed and compared.

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K0.8Fe1.7(Se0.73S0.27)2和CaKFe4As4晶界临界电流的温度依赖性

利用断结隧道光谱，研究了碱金属基超导体、自然相分离的复合材料K0.8Fe1.7(Se0.73S0.27)2硒化物和CaKFe4As4多晶样品在零磁场下临界电流Ic(T)的温度行为。分析和比较了测量的体和晶间Ic(T)依赖性。

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

Bulletin of the Lebedev Physics Institute PHYSICS, MULTIDISCIPLINARY-

CiteScore

0.70

自引率

25.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.