Observing the Suppression of Superconductivity in RbEuFe_{4}As_{4} by Correlated Magnetic Fluctuations.
Observing the Suppression of Superconductivity in RbEuFe_{4}As_{4} by Correlated Magnetic Fluctuations.
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DOI：
10.1103/physrevlett.126.157001
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发表时间：
2020-10
影响因子：
8.6
通讯作者：
D. Collomb;S. Bending;A. Koshelev;M. Smylie;L. Farrar;J. Bao;D. Chung;M. Kanatzidis;W. Kwok;U. Welp
中科院分区：
文献类型：
--
作者：
D. Collomb;S. Bending;A. Koshelev;M. Smylie;L. Farrar;J. Bao;D. Chung;M. Kanatzidis;W. Kwok;U. Welp
本文描述了RbEuFe_{4}As_{4}中超导涡旋的定量磁成像，以研究磁性和超导子晶格之间独特的相互作用。我们的扫描霍尔显微镜的数据显示了一个显着的抑制磁有序温度附近的超流密度与最近开发的模型描述的相关的磁波动抑制超导性的定性协议。这些结果表明，在RbEuFe_{4}As_{4}中，超导子系统和磁子系统之间存在明显的交换相互作用，这对进一步研究它们之间相互作用所引起的物理现象具有重要意义。
In this Letter, we describe quantitative magnetic imaging of superconducting vortices in RbEuFe_{4}As_{4} in order to investigate the unique interplay between the magnetic and superconducting sublattices. Our scanning Hall microscopy data reveal a pronounced suppression of the superfluid density near the magnetic ordering temperature in good qualitative agreement with a recently developed model describing the suppression of superconductivity by correlated magnetic fluctuations. These results indicate a pronounced exchange interaction between the superconducting and magnetic subsystems in RbEuFe_{4}As_{4}, with important implications for future investigations of physical phenomena arising from the interplay between them.