Muon spin relaxation in diluted triangular‐lattice antiferromagnet

被引：0
|
作者：
Y. Todate
N. Ohnishi
M. Tanaka
K. Nishiyama
K. Nagamine
机构：
[1] Ochanomizu University,Department of Physics
[2] UT‐MSL,undefined
[3] University of Tokyo,undefined
来源：
Hyperfine Interactions | 1997年 / 104卷
关键词：
Monte Carlo; Correlation Time; Uniaxial Anisotropy; Monte Carlo Step; Divergent Behavior;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Zero and longitudinal field μSR measurements on diluted triangular‐lattice antiferromagnet LuFeMgO4 have revealed gradual and highly anisotropic slowing‐down of spin fluctuation. Relaxation rate \lambda in the condition with initial muon spins perpendicular to the hexagonal c‐plane shows divergent behavior while that in the parallel configuration remains finite. At certain temperature range the fluctuation of spins is suppressed by a small external magnetic field. Monte Carlo calculation suggests that the correlation time for z(c)‐component of spins diverges first on cooling.
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页码：375 / 380
页数：5
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