Rh2Mo3N: Noncentrosymmetric $\mathcal{s}$-wave superconductor

Wei, Wensen; Zhao, G. J.; Kim, D. R.; Jin, Chiming; Zhang, J. L.; Ling, Langsheng; Zhang, Lei; Du, Haifeng; Chen, T. Y.; Zang, Jiadong; Tian, Mingliang; Chien, C. L.; Zhang, Yuheng

doi:10.1103/physrevb.94.104503

Title: Rh₂Mo₃N: Noncentrosymmetric $$\mathcal{s}$$-wave superconductor

Journal Article · Wed Sep 07 00:00:00 EDT 2016 · Physical Review B

DOI:https://doi.org/10.1103/physrevb.94.104503· OSTI ID:1388927

Wei, Wensen ^[1]; Zhao, G. J. ^[2]; Kim, D. R. ^[2]; Jin, Chiming ^[1]; Zhang, J. L. ^[3]; Ling, Langsheng ^[3]; Zhang, Lei ^[3]; Du, Haifeng ^[1]; Chen, T. Y. ^[2]; Zang, Jiadong ^[4]; Tian, Mingliang ^[1]; Chien, C. L. ^[5]; Zhang, Yuheng ^[1]

Chinese Academy of Sciences (CAS), Hefei (China); University of Science and Technology of China, Hefei (China); Nanjing Univ. (China)
Arizona State Univ., Tempe, AZ (United States)
Chinese Academy of Sciences (CAS), Hefei (China); University of Science and Technology of China, Hefei (China)
Univ. of New Hampshire, Durham, NH (United States)
Johns Hopkins Univ., Baltimore, MD (United States)

Rh₂Mo₃N, with a noncentrosymmetric $$\beta$$-manganese structure, has been found to be superconducting with critical temperature $$T_c$$ ≈ 4.3K. Magnetic field dependence of resistivity, magnetization, and specific heat measurements show that its upper critical field of $$μ_0H^\ast_{c2}$$ ~ 7.41 T comes close to, but does not exceed, the Pauli paramagnetic limit and that the 2Δ/$$k_\text{B}T_c$$ value of about 3.62 is in accordance with a conventional $$\mathcal{s}$$-wave superconductor. Andreev reflection spectroscopy measurements using both normal metal and half-metal demonstrate conclusively $$\mathcal{s}$$-wave pairing with an isotropic gap.

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Research Organization:: Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); Youth Innovation Promotion Association; Chinese Academy of Sciences/State Administration of Foreign Experts Affairs (CAS/SAFEA)

Grant/Contract Number:: SC0012670; 11474290; 11374302; U1432251; U1332209; 11504378

OSTI ID:: 1388927

Alternate ID(s):: OSTI ID: 1321043

Journal Information:: Physical Review B, Vol. 94, Issue 10; Related Information: SHINES partners with University of California, Riverside (lead); Arizona State University; Colorado State University; Johns Hopkins University; University of California Irvine; University of California Los Angeles; University of Texas at Austin; ISSN 2469-9950

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 23 works

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Title: Rh2Mo3N: Noncentrosymmetric $$\mathcal{s}$$-wave superconductor

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Title: Rh₂Mo₃N: Noncentrosymmetric $$\mathcal{s}$$-wave superconductor