Theory of coexisting charge and spin-density waves in (TMTTF)2Br, (TMTSF)2PF6, and α-(BEDT-TTF)2MHg(SCN)4

被引:87
作者
Mazumdar, S [1 ]
Ramasesha, S
Clay, RT
Campbell, DK
机构
[1] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
[3] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India
关键词
D O I
10.1103/PhysRevLett.82.1522
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Recent experiments indicate that the spin-density waves (SDWs) in (TMTTF)(2)Br, (TMTSF)(2)PF6, and alpha-(BEDT-TTF)(2)MHg(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 hand filling within the starting Hamiltonian. [S0031-9007(99)08498-7].
引用
收藏
页码:1522 / 1525
页数:4
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