Authors Referees APS Members |
January 2008, to be published in Physical Review B1
Specific heat of Sb: Isotopic and spin-orbit effects from measurements and
\textit{ab initio} calculations
We report measurements of the specific heat $C$ of antimony crystals in the 2 -- 50~K temperature range for several isotopic compositions and {\em ab initio} calculations of the specific heat as a function of temperature. The contribution of spin-orbit interaction and the dependence of $C$ on isotopic mass are discussed and compared with previous observations reported for semiconductors and group VA semimetals. We also discuss the effect of spin-orbit interaction on the trigonal lattice parameter and the cohesive energy. © 2008 The American Physical Society.
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