用金兹堡-朗道法测定单晶K0.73Fe1.68Se2的第三临界场

IF 0.2 Q4 MULTIDISCIPLINARY SCIENCES

Suranaree Journal of Science and Technology Pub Date : 2023-04-29 DOI:10.55766/sujst-2023-02-e01605

A. Changjan, A. Maksuwan, P. Pramuanl, S. Meakniti, P. Udomsamuthirun

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引用次数: 0

摘要

本文对磁性超导体的两波段Ginzburg-Landau (GL)方程进行了解析求解，以确定表面临界磁场(Hc3)的温度依赖性。用变分法分析了第一GL方程，并对Changjan & Udomsamuthirun的温度依赖模型进行了修正。我们发现，我们的模型可以很好地与K0.73Fe1.68Se2单晶超导体的实验数据吻合，并且Hc3/Hc2(其中Hc2为单晶K0.73Fe1.68Se2的上临界场)具有很强的温度依赖性。

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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THE THIRD CRITICAL FIELD (HC3) OF SINGLE-CRYSTALLINE K0.73Fe1.68Se2 BY GINZBURG-LANDAU APPROACH

In this paper, two-band Ginzburg-Landau (GL) equations for magnetic superconductors were solved analytically to determine the temperature dependence of surface critical magnetic field (Hc3). By variation method analytically from 1st GL equations and modified to the Changjan & Udomsamuthirun’s temperature dependence model. We found that, our model could find a good agreement with the experimental data of single-crystalline K0.73Fe1.68Se2 superconductors vicinity the critical temperature scenery and the ratio Hc3/Hc2 (where Hc2 is the upper critical field of single-crystalline K0.73Fe1.68Se2) indicated powerful temperature dependence.

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来源期刊

Suranaree Journal of Science and Technology MULTIDISCIPLINARY SCIENCES-

CiteScore

0.30

自引率

50.00%

发文量