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Magnetic frustrations in the face centered cubic antiferromagnet NiS2 | | M. Matsuura
; Y. Endoh
; H. Hiraka
; K. Yamada
; K. Hirota
; A. S. Mishchenko
; N. Nagaosa
; I. V. Solovyev
; | | Date: |
12 Apr 2001 | | Subject: | Strongly Correlated Electrons | cond-mat.str-el | | Abstract: | Neutron scattering experiment on NiS2 single crystal revealed a honeycomb pattern of the intensity distribution in reciprocal lattice space (continuous-line structure along the fcc zone boundary) providing the first direct evidence for nearly frustrated antiferromagnetism (AF) on the face centered cubic (fcc) lattice. A small but finite lattice distortion below 30.9 K lifts the degeneracy of the magnetic ground state due to the frustration and eventually result in the coexistence of the type I and the type II AF long range orderings, which are mutually incompatible in the fcc symmetry at higher temperatures. | | Source: | arXiv, cond-mat/0104233 | | Services: | Forum | Review | PDF | Favorites | |
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