几层超导1Td-MoTe2中不对称自旋轨道耦合的传输证据。,Nature Communications

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几层超导1Td-MoTe2中不对称自旋轨道耦合的传输证据。
Nature Communications ( IF 14.7 ) Pub Date : 2019-05-03 , DOI: 10.1038/s41467-019-09995-0
Jian Cui ₁ , Peiling Li _{1,

2} , Jiadong Zhou ₃ , Wen-Yu He ₄ , Xiangwei Huang _{1,

2} , Jian Yi ₅ , Jie Fan ₁ , Zhongqing Ji ₁ , Xiunian Jing _{1,

6} , Fanming Qu ₁ , Zhi Gang Cheng ₁ , Changli Yang _{1,

6} , Li Lu _{1,

6} , Kazu Suenaga ₇ , Junwei Liu ₄ , Kam Tuen Law ₄ , Junhao Lin _{8,

9} , Zheng Liu ₃ , Guangtong Liu _{1,

10}

Affiliation

Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China.
University of Chinese Academy of Sciences, 100049, Beijing, China.
School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, 315201, Ningbo, China.
Collaborative Innovation Center of Quantum Matter, 100871, Beijing, China.
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8565, Japan.
Department of Physics, Southern University of Science and Technology, 518055, Shenzhen, China.
Shenzhen Key Laboratory of Quantum Science and Engineering, 518055, Shenzhen, China.
Songshan Lake Materials Laboratory, Dongguan, 523808, Guangdong, China.

具有强自旋轨道耦合的二维过渡金属二金属硫化物MX2（M = W，Mo，Nb和X = Te，Se，S）具有许多包括超导性在内的新颖物理学。由于具有伊辛自旋轨道耦合，单层NbSe2和2H结构的门控MoS2可以实现伊辛超导性，这表现为其面内上临界场远远超过了Pauli顺磁极限。出乎意料的是，我们发现几层1Td结构MoTe2还表现出超出Pauli顺磁极限的面内上临界场。重要的是，在2H过渡金属二卤化物中，面内上临界场显示出了双重对称性，这与各向同性面内上临界场不同。我们表明，这是1Td过渡金属二硫代双胍中不对称自旋轨道耦合的结果。

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更新日期：2019-05-16

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