Observation of a superconducting state of a topological superconductor candidate, FeTe0.6Se0.4, equipping ferromagnetic electrodes with perpendicular magnetic anisotropy
Observation of a superconducting state of a topological superconductor candidate, FeTe0.6Se0.4, equipping ferromagnetic electrodes with perpendicular magnetic anisotropy
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DOI：
10.35848/1882-0786/ac1ca4
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发表时间：
2021
影响因子：
2.3
通讯作者：
Kosuke Ohnishi;Sachin Gupta;S. Kasahara;Y. Kasahara;Y. Matsuda;E. Shigematsu;R. Ohshima;Y. Ando;M. Shiraishi
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文献类型：
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作者：
Kosuke Ohnishi;Sachin Gupta;S. Kasahara;Y. Kasahara;Y. Matsuda;E. Shigematsu;R. Ohshima;Y. Ando;M. Shiraishi
硒化铁碲化物 FeTeSe 是一种适用于超导和自旋电子学应用的有吸引力的层状材料。 FeTeSe 可实现伊辛型超导，其中涉及自旋动量锁定。我们报告了机械剥离薄膜 FeTe0.6Se0.4 的超导性，该薄膜配备了具有垂直磁各向异性的铁磁电极，以检测可能的伊辛自旋配对。在T = 15 K时观察到超导转变。更重要的是，FeTe0.6Se0.4的上临界场是各向异性的，面内上临界场测量为145 T。这些结果表明薄膜FeTe0.6Se0.4的超导性是鲁棒的，FeTe0.6Se0.4可以成为超自旋电子学的潜在材料阶段。
Iron selenide telluride, FeTeSe, is an attractive layered material for both superconductivity and spintronics applications. FeTeSe enables Ising-type superconductivity, which involves spin-momentum locking. We report superconductivity of mechanically exfoliated thin film FeTe0.6Se0.4 that equips ferromagnetic electrodes with perpendicular magnetic anisotropy to detect possible Ising spin paring. The superconducting transition is observed at T = 15 K. More importantly, the upper critical field of FeTe0.6Se0.4 is anisotropic and the in-plane upper critical field is measured to be 145 T. These results show that the superconductivity of thin film FeTe0.6Se0.4 is robust and FeTe0.6Se0.4 can be a potential material stage for super-spintronics.