Energy bands,fermi surface and lattice instability in VS |
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| Authors: | S.H. Liu W.B. England H.W. Myron |
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| Affiliation: | Ames Laboratory-USAEC and Department of Physics, Iowa State University, Ames, Iowa 50010, U.S.A.;Department of Physics, Northwestern University, Evanston, Illinois 60201, U.S.A. |
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| Abstract: | The energy bands of vanadium monosulfide have been calculated by the KKR method in the muffin-tin approximation. The Fermi surface is very complicated, but there are two nearly cylindrical sheets of nearly equal cross-sections centered around Φ and M respectively. We suggest that this Fermi surface feature can support a charge-density-wave (CDW) state in the conduction electron system at low enough temperatures, and the formation of the CDW explains the lattice phase transition in this compound. |
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