Superconductivity in the Rh-based Heusler family MRh₂Sn

TY - JOUR

T1 - Superconductivity in the Rh-based Heusler family MRh2Sn

AU - Klimczuk, T.

AU - Gofryk, K.

AU - Wang, C. H.

AU - Allred, J. M.

AU - Ronning, F.

AU - Sadowski, W.

AU - Griveau, J. C.

AU - Colineau, E.

AU - Safarik, D.

AU - Thompson, J. D.

AU - Cava, R. J.

PY - 2010/10/14

Y1 - 2010/10/14

N2 - Superconductivity and structural characterization is reported for the Heusler structure compounds ScRh2Sn, LuRh2Sn, and YRh 2Sn. The superconducting Tc 's are 2.0 K, 2.9 K, and 4.1 K, respectively. The electronic contributions to the specific heat and the Debye temperatures are reported, and suggest that the observed trend in Tc is governed primarily by an increase in electron-phonon coupling on going from ScRh 2Sn to YRh2Sn. The electron-phonon coupling constant λep and the normalized specific-heat jump ΔC/γ Tc suggest that the MRh2 Sn system evolves from weak coupling to moderate coupling superconductivity.

AB - Superconductivity and structural characterization is reported for the Heusler structure compounds ScRh2Sn, LuRh2Sn, and YRh 2Sn. The superconducting Tc 's are 2.0 K, 2.9 K, and 4.1 K, respectively. The electronic contributions to the specific heat and the Debye temperatures are reported, and suggest that the observed trend in Tc is governed primarily by an increase in electron-phonon coupling on going from ScRh 2Sn to YRh2Sn. The electron-phonon coupling constant λep and the normalized specific-heat jump ΔC/γ Tc suggest that the MRh2 Sn system evolves from weak coupling to moderate coupling superconductivity.

UR - https://www.scopus.com/pages/publications/78049415275

UR - https://www.scopus.com/pages/publications/78049415275#tab=citedBy

U2 - 10.1103/PhysRevB.82.134520

DO - 10.1103/PhysRevB.82.134520

M3 - Article

SN - 1098-0121

VL - 82

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 13

M1 - 134520

ER -