TY - JOUR
T1 - Observation of partial-disorder-type spin fluctuations in frustrated MnPt
AU - Tomiyasu, Keisuke
AU - Yasui, Hiroyuki
AU - Yamaguchi, Yasuo
PY - 2012/11
Y1 - 2012/11
N2 - The spin-frustrated intermetallic compound Mn 3Pt exhibits a characteristic magnetic structure called partial disorder, in which some spin sites can form magnetic order through the generation of nonordered sites that locally relieve the frustration. Here, we report the results of a single-crystal inelastic neutron scattering study of this compound. The measured momentum Q correlations of diffusive magnetic scattering reveal that the paramagnetic phase exhibits not completely but strongly two-dimensional spin fluctuations, which are described by short-range interlayer melts with the same type of partial disorder.
AB - The spin-frustrated intermetallic compound Mn 3Pt exhibits a characteristic magnetic structure called partial disorder, in which some spin sites can form magnetic order through the generation of nonordered sites that locally relieve the frustration. Here, we report the results of a single-crystal inelastic neutron scattering study of this compound. The measured momentum Q correlations of diffusive magnetic scattering reveal that the paramagnetic phase exhibits not completely but strongly two-dimensional spin fluctuations, which are described by short-range interlayer melts with the same type of partial disorder.
KW - Geometrical frustration
KW - Inelastic neutron scattering
KW - Partial disorder
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U2 - 10.1143/JPSJ.81.114724
DO - 10.1143/JPSJ.81.114724
M3 - Article
AN - SCOPUS:84870179328
SN - 0031-9015
VL - 81
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 11
M1 - 114724
ER -