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Effects of the single-ion-type anisotropy on the spin-1 Haldane system with a spin-12 impurity

✍ Scribed by Makoto Kaburagi; Takashi Tonegawa


Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
212 KB
Volume
211
Category
Article
ISSN
0921-4526

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We measured the spin-excitation spectrum for the quasi-one-dimensional S = 1 antiferromagnet [Ni(C3HloN2)2] NO2(C104) (NINO) and NINO with nominally 5 at% Cu 2 + impurities (N1NO : Cu 2 +) by inelastic neutron scattering. We clearly observed a peak corresponding to an energy gap E~ = 1.2 meV ( ~ 14