Complex superconductivity in the noncentrosymmetric compound Re6Zr

Khan, Mojammel A.; Karki, A. B.; Samanta, T.; Browne, D.; Stadler, S.; Vekhter, I.; Pandey, Abhishek; Adams, P. W.; Young, D. P.; Teknowijoyo, S.; Cho, K.; Prozorov, R.; Graf, D. E.

doi:10.1103/PhysRevB.94.144515

Title: Complex superconductivity in the noncentrosymmetric compound Re₆Zr

Journal Article · Mon Oct 24 00:00:00 EDT 2016 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.94.144515· OSTI ID:1347895

Khan, Mojammel A. ^[1]; Karki, A. B. ^[1]; Samanta, T. ^[1]; Browne, D. ^[1]; Stadler, S. ^[1]; Vekhter, I. ^[1]; Pandey, Abhishek ^[1]; Adams, P. W. ^[1]; Young, D. P. ^[1]; Teknowijoyo, S. ^[2]; Cho, K. ^[2]; Prozorov, R. ^[2]; Graf, D. E. ^[3]

Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy
Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)

Here, we report the electronic structure, synthesis, and measurements of the magnetic, transport, and thermal properties of the polycrystalline noncentrosymmetric compound Re₆Zr . We observed a bulk superconducting transition at temperature T_c ~ 6.7 K, and measured the resistivity, heat capacity, thermal conductivity, and the London penetration depth below the transition, as well as performed doping and pressure studies. From these measurements we extracted the critical field and the superconducting parameters of Re₆Zr. Lastly, our measurements indicate a relatively weak to moderate contribution from a triplet component to the order parameter, and favor a full superconducting gap, although we cannot exclude the existence of point nodes based on our data.

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Research Organization:: Ames Laboratory (AMES), Ames, IA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)

Grant/Contract Number:: DMR-1306392; DMR-1410741; DMR-1157490; FG02-07ER46420; FG02-13ER46946; AC02-07CH11358

OSTI ID:: 1347895

Alternate ID(s):: OSTI ID: 1329946

Report Number(s):: IS-J-9194; PRBMDO; TRN: US1701337

Journal Information:: Physical Review B, Vol. 94, Issue 14; ISSN 2469-9950

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 27 works

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Title: Complex superconductivity in the noncentrosymmetric compound Re6Zr

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Title: Complex superconductivity in the noncentrosymmetric compound Re₆Zr