Anisotropy of thermal expansion and electronic topological transitions in Zn and Cd under pressure

D. L. Novikov, M. I. Katsnelson, A. V. Trefilov, Arthur J Freeman, N. E. Christensen, A. Svane, C. O. Rodriguez

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Abstract

Using first-principles local-density electronic structure calculations we investigate the evolution of the Fermi surface of hcp Zn and Cd under hydrostatic pressure. We find a sequence of electronic topological transitions (ETT) and a region of pressure where several of these ETT's almost coincide, which apparently leads to the experimentally observed anomalies in their lattice parameters. A change of sign of the anisotropic thermal expansion is predicted in this critical region for temperatures below the Debye temperature.

Original languageEnglish
Pages (from-to)4557-4560
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number7
Publication statusPublished - 1999

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ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Novikov, D. L., Katsnelson, M. I., Trefilov, A. V., Freeman, A. J., Christensen, N. E., Svane, A., & Rodriguez, C. O. (1999). Anisotropy of thermal expansion and electronic topological transitions in Zn and Cd under pressure. Physical Review B - Condensed Matter and Materials Physics, 59(7), 4557-4560.