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Spintronic Superconductor in a Bulk Layered Material with Natural Spin-valve Structure by Sakuragi, Shunsuke; Sasaki, S.; Akashi, R.; Sakagami, R.; Kuroda, K.; Bareille, C.; Hashimoto, T.; Nagashima, T.; Kinoshita, Y.; Hirata, Y.; Shimozawa, M.; Asai, S.; Yajima, T.; Doi, S.; Tsujimoto, N.; Kunisada, S.; Noguchi, R.; Kurokawa, K.; Azuma, N.; Hirata, K.; Yamasaki, Y.; Nakao, H.; Kim, T. K.; Cacho, C.; Masuda, T.; Tokunaga, M.; Wadati, H.; Okazaki, K.; Shin, S.; Kamihara, Y.; Yamashita, Minoru; Kondo, Takeshi is a scholarly article available to read on EtoBox.

What is Spintronic Superconductor in a Bulk Layered Material with Natural Spin-valve Structure about?

Multi-layered materials provide fascinating platforms to realize various functional properties, possibly leading to future electronic devices controlled by external fields. In particular, layered magnets coupled with conducting layers have been extensively studied recently for possible control of their transport properties via the spin structure. Successful control of quantum-transport properties in the materials with antiferromagnetic (AFM) layers, so-called natural spin-valve structure, has been reported for the Dirac Fermion and topological/axion materials. However, a bulk crystal in which magnetic and superconducting layers are alternately stacked has not been realized until now, and the search for functional properties in it is an interesting yet unexplored field in material science. Here, we discover superconductivity providing such an ideal platform in EuSn2As2 with the van der Waals stacking of magnetic Eu layers and superconducting Sn-As layers, and present the first demonstration of a natural spin-valve effect on the superconducting current. Below the superconducting transition temperature (Tc), the electrical resistivity becomes zero in the in-plane direction. In contras

Author

Sakuragi, Shunsuke; Sasaki, S.; Akashi, R.; Sakagami, R.; Kuroda, K.; Bareille, C.; Hashimoto, T.; Nagashima, T.; Kinoshita, Y.; Hirata, Y.; Shimozawa, M.; Asai, S.; Yajima, T.; Doi, S.; Tsujimoto, N.; Kunisada, S.; Noguchi, R.; Kurokawa, K.; Azuma, N.; Hirata, K.; Yamasaki, Y.; Nakao, H.; Kim, T. K.; Cacho, C.; Masuda, T.; Tokunaga, M.; Wadati, H.; Okazaki, K.; Shin, S.; Kamihara, Y.; Yamashita, Minoru; Kondo, Takeshi

Published

2020

Language

EN