Campus Units

Chemistry, Physics and Astronomy, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

2016

Journal or Book Title

Physical Review B

Volume

93

Issue

9

First Page

094524-1

Last Page

094524-7

DOI

10.1103/PhysRevB.93.094524

Abstract

The synthesis and crystallographic, thermodynamic, and transport properties of single crystalline Rh9In4S4 were studied. The resistivity, magnetization, and specific heat measurements all clearly indicate bulk superconductivity with a critical temperature, Tc∼2.25 K. The Sommerfeld coefficient γ and the Debye temperature (ΘD) were found to be 34 mJ mol−1 K−2 and 217 K, respectively. The observed specific heat jump, ΔC/γTc=1.66, is larger than the expected BCS weak coupling value of 1.43. Ginzburg-Landau (GL) ratio of the low-temperature GL-penetration depth, λGL≈5750 Å, to the GL-coherence length, ξGL≈94 Å, is large: κ ∼60. Furthermore, we observed a peak effect in the resistivity measurement as a function of both temperature and magnetic field.

Comments

This is an article from Physical Review B 93 (2016): 094524-1, doi: 10.1103/PhysRevB.93.094524. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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