电邮这篇文章 Synthesis and properties of 12442-family superconductor
- 作者: Zhuvagin I.V1, Vlasenko V.A1, Usoltsev A.S.1, Gippius A.A1, Pervakov K.S.1, Prishchepa A.R1, Prudkoglyad V.A1, Gavrilkin S.Y.1, Denishchenko A.D1, Sadakov A.V1
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隶属关系:
- Lebedev Physical Institute, Russian Academy of Sciences
- 期: 卷 120, 编号 3-4 (2024)
- 页面: 286-287
- 栏目: Articles
- URL: https://rjraap.com/0370-274X/article/view/664407
- DOI: https://doi.org/10.31857/S0370274X24080214
- EDN: https://elibrary.ru/AWITRA
- ID: 664407
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详细
We report a synthesis of two members of recently discovered high-temperature superconductors of 12442 family, with formula MCa2Fe4As4F2 (M=Rb,K) and transition temperatures of 32.7 and 34.6K, respectively. Quality of the samples was assessed using X-ray powder diffraction, superconducting transitions were identified through transport and magnetic experiments. The temperature dependence of the upper critical field and vortex activation energy was investigated under magnetic fields up to 19T. Two distinct thermally activated flux flow regimes were observed in both systems. Field dependences of activation energy U0(H) indicate a change in the properties of vortex matter in these regimes and distinctly different dissipation mechanisms, reminiscent of cuprate HTSC.
作者简介
I. Zhuvagin
Lebedev Physical Institute, Russian Academy of Sciences
Email: andrey.sadakov@gmail.com
Moscow, Russia
V. Vlasenko
Lebedev Physical Institute, Russian Academy of Sciences
Email: andrey.sadakov@gmail.com
Moscow, Russia
A. Usoltsev
Lebedev Physical Institute, Russian Academy of Sciences
Email: andrey.sadakov@gmail.com
Moscow, Russia
A. Gippius
Lebedev Physical Institute, Russian Academy of Sciences
Email: andrey.sadakov@gmail.com
Moscow, Russia
K. Pervakov
Lebedev Physical Institute, Russian Academy of Sciences
Email: andrey.sadakov@gmail.com
Moscow, Russia
A. Prishchepa
Lebedev Physical Institute, Russian Academy of Sciences
Email: andrey.sadakov@gmail.com
Moscow, Russia
V. Prudkoglyad
Lebedev Physical Institute, Russian Academy of Sciences
Email: andrey.sadakov@gmail.com
Moscow, Russia
S. Gavrilkin
Lebedev Physical Institute, Russian Academy of Sciences
Email: andrey.sadakov@gmail.com
Moscow, Russia
A. Denishchenko
Lebedev Physical Institute, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: andrey.sadakov@gmail.com
Moscow, Russia
A. Sadakov
Lebedev Physical Institute, Russian Academy of Sciences
Email: andrey.sadakov@gmail.com
Moscow, Russia
参考
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