Elementary excitations, exchange interaction and spin-Peierls transition in CuGeO$_3$

Czechoslovak Journal of Physics, no. 6 (1996): 3239-3246

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The microscopic description of the spin-Peierls transition in pure and doped CuGeO3 is developed taking into account realistic details of crystal structure. It it shown that the presence of side-groups (here Ge) strongly influences superexchange along Cu−O−Cu path, making it antiferromagnetic. Nearest-neighbour and next-nearest neighbou...更多

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