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pro vyhledávání: '"Yoshitaka Maeda"'
Publikováno v:
Physical Review B. 84
We consider spin-1 Haldane chains with single-ion anisotropy, which exists in known Haldane chain materials. We develop a perturbation theory in terms of anisotropy, where magnon-magnon interaction is important even in the low temperature limit. The
Autor:
Yoshitaka Maeda, Masaki Oshikawa
Publikováno v:
Physical Review B. 67
This paper presents numerical results of the ESR absorption spectrum for S= ½ XY model in one dimension. We obtain detailed numerical results for a wide range of temperature and magnetic field for a large system of 400 sites, using the method develo