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Competing Ground States of the New Class of Halogen-Bridged Metal Complexes

Shoji Yamamoto
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Abstract

Based on a symmetry argument, we study the ground-state properties of halogen-bridged binuclear metal chain complexes. We systematically derive commensurate density-wave solutions from a relevant two-band Peierls-Hubbard model and numerically draw the the ground-state phase diagram as a function of electron-electron correlations, electron-phonon interactions, and doping concentration within the Hartree-Fock approximation. The competition between two types of charge-density-wave states, which has recently been reported experimentally, is indeed demonstrated.

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Shoji Yamamoto. 1999-12-13. Competing Ground States of the New Class of Halogen-Bridged Metal Complexes. https://doi.org/10.1143/jpsj.69.13

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