TY - JOUR
T1 - Dynamic spin fluctuations at T→0 in a spin- 12 ferromagnetic kagome lattice
AU - Ofer, Oren
AU - Marcipar, Lital
AU - Ravi Chandra, V.
AU - Gazit, Snir
AU - Podolsky, Daniel
AU - Arovas, Daniel P.
AU - Keren, Amit
PY - 2014/5/16
Y1 - 2014/5/16
N2 - We report magnetization, electron-spin resonance (ESR), and muon-spin relaxation (μSR) measurements on single crystals of the S=1/2 (Cu+2) kagome compound Cu(1,3-benzendicarboxylate). The μSR is carried to temperatures as low as 45 mK. The spin-Hamiltonian parameters are determined from the analysis of the magnetization and ESR data. We find that this compound has anisotropic ferromagnetic interactions. Nevertheless, no spin freezing is observed even at temperatures two orders of magnitude lower than the coupling constants. In light of this finding, the relation between persistent spin dynamics and spin liquids on kagome lattices is reexamined.
AB - We report magnetization, electron-spin resonance (ESR), and muon-spin relaxation (μSR) measurements on single crystals of the S=1/2 (Cu+2) kagome compound Cu(1,3-benzendicarboxylate). The μSR is carried to temperatures as low as 45 mK. The spin-Hamiltonian parameters are determined from the analysis of the magnetization and ESR data. We find that this compound has anisotropic ferromagnetic interactions. Nevertheless, no spin freezing is observed even at temperatures two orders of magnitude lower than the coupling constants. In light of this finding, the relation between persistent spin dynamics and spin liquids on kagome lattices is reexamined.
UR - http://www.scopus.com/inward/record.url?scp=84901459422&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.89.205116
DO - 10.1103/PhysRevB.89.205116
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AN - SCOPUS:84901459422
SN - 1098-0121
VL - 89
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 20
M1 - 205116
ER -