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cond-mat1995
Spin-reflection positivity of the Kondo lattice at half-filling
T. Yanagisawa, Y. Shimoi
We examine the spin-reflection positivity of the ground state of the Kondo lattice model at half-filling with the antiferromagnetic and ferromagnetic exchange couplings . Fo…
cond-mat1995
Excitons in soliton and bipolaron lattice states of doped Peierls systems
Kikuo Harigaya, Yukihiro Shimoi, Shuji Abe
Exciton effects on soliton and bipolaron lattice states are investigated using an electron-lattice Peierls model with long-range Coulomb interactions. The Hartree-Fock (HF) approxi…