Dynamic spin fluctuations at T→0 in a spin- 12 ferromagnetic kagome lattice

Oren Ofer; Lital Marcipar; V. Ravi Chandra; Snir Gazit; Daniel Podolsky; Daniel P. Arovas; Amit Keren

doi:10.1103/PhysRevB.89.205116

Dynamic spin fluctuations at T→0 in a spin- 12 ferromagnetic kagome lattice

Oren Ofer^*, Lital Marcipar, V. Ravi Chandra, Snir Gazit, Daniel Podolsky, Daniel P. Arovas, Amit Keren

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

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.

Original language	American English
Article number	205116
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	89
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevB.89.205116
State	Published - 16 May 2014
Externally published	Yes

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title = "Dynamic spin fluctuations at T→0 in a spin- 12 ferromagnetic kagome lattice",

abstract = "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.",

author = "Oren Ofer and Lital Marcipar and {Ravi Chandra}, V. and Snir Gazit and Daniel Podolsky and Arovas, {Daniel P.} and Amit Keren",

year = "2014",

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doi = "10.1103/PhysRevB.89.205116",

language = "American English",

volume = "89",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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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

M3 - Article

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 -

Dynamic spin fluctuations at T→0 in a spin- 12 ferromagnetic kagome lattice

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