Theory of Coexisting Charge- and Spin-Density Waves in (TMTTF)2Br,(TMTSF)2PF6, and α(BEDTTTF)2MHg(SCN)4

S. Mazumdar, S. Ramasesha, R. Torsten Clay, and David K. Campbell
Phys. Rev. Lett. 82, 1522 – Published 15 February 1999
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Abstract

Recent experiments indicate that the spin-density waves (SDWs) in (TMTTF)2Br,(TMTSF)2PF6, and α(BEDTTTF)2MHg(SCN)4 are highly unconventional and coexist with charge-density waves (CDWs). We present a microscopic theory of this unusual CDW-SDW coexistence. A complete understanding requires the explicit inclusion of strong Coulomb interactions, lattice discreteness, the anisotropic two-dimensional nature of the lattice, and the correct band filling within the starting Hamiltonian.

  • Received 10 March 1998

DOI:https://doi.org/10.1103/PhysRevLett.82.1522

©1999 American Physical Society

Authors & Affiliations

S. Mazumdar and S. Ramasesha*

  • Department of Physics, University of Arizona, Tucson, Arizona 85721

R. Torsten Clay and David K. Campbell

  • Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801

  • *Permanent address: Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India.

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Vol. 82, Iss. 7 — 15 February 1999

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