MUON SPIN RELAXATION IN DILUTED TRIANGULAR-LATTICE ANTIFERROMAGNET

Authors
TODATE Y OHNISHI N TANAKA M NISHIYAMA K NAGAMINE K
Citation
Y. Todate et al., MUON SPIN RELAXATION IN DILUTED TRIANGULAR-LATTICE ANTIFERROMAGNET, Hyperfine interactions, 104(1-4), 1997, pp. 375-380
Citations number
10
Categorie Soggetti
Physics, Atomic, Molecular & Chemical","Physics, Nuclear","Physics, Condensed Matter
Journal title
Hyperfine interactions → ACNP
ISSN journal
03043843
Volume
104
Issue
1-4
Year of publication
1997
Pages
375 - 380
Database
ISI
SICI code
0304-3843(1997)104:1-4<375:MSRIDT>2.0.ZU;2-L
Abstract
Zero and longitudinal field mu SR measurements on diluted triangular-l attice antiferromagnet LuFeMgO4 have revealed gradual and highly aniso tropic slowing-down of spin fluctuation. Relaxation rate lambda in the condition with initial muon spins perpendicular to the hexagonal c-pl ane 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 calculat ion suggests that the correlation time for z(c)-component of spins div erges first on cooling.