journal article·2019-09-24

Signature of Superconductivity in Orthorhombic CoSb Monolayer Films on SrTiO3(001)

Cui Ding, Guanming Gong, Yanzhao Liu, Fawei Zheng, Zhiyu Zhang, Haohao Yang, Zhe Li, Ying Xing, Jun Ge, Ke He, Wei Li, Ping Zhang, Jian Wang, Lili Wang, Qi-Kun Xue

ACS Nano· Volume 13· Issue 9
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Abstract

We prepare orthorhombic CoSb monolayer films on SrTiO3(001) substrate by molecular beam epitaxy and observe symmetric gap around the Fermi level with coherence peaks at ± (6–7) meV by in situ scanning tunneling spectroscopy. Ex situ magnetization measurements of the films protected by Te and Si films consistently reveal a diamagnetic transition at 14 K. These results suggest the occurrence of superconductivity in orthorhombic CoSb monolayers on SrTiO3(001).
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Research context

OpenAlex topics: Iron-based superconductors research · Physics of Superconductivity and Magnetism · Electronic and Structural Properties of Oxides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China

International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China

Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

Department of Materials Science and Engineering, School of New Energy and Materials, China University of Petroleum, Beijing 102249, China

Collaborative Innovation Center of Quantum Matter, Beijing 100084, China

Beijing Academy of Quantum Information Sciences, Beijing 100193, China

CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China

Funding

Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Beijing Municipality · National Natural Science Foundation of China · Chinese Academy of Sciences

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