Electron Spin Resonance in Quasi-One-Dimensional Quantum Antiferromagnets: Relevance of Weak Interchain Interactions

Abstract

We discuss universal features on the electron spin resonance (ESR) of a temperature-induced Tomonaga-Luttinger liquid phase in a wide class of weakly coupled $S=1/2$ antiferromagnetic spin chains such as spin ladders, spin tubes and three-dimensionally coupled spin chains. We show that the ESR linewidth of various coupled chains increases with lowering temperature while the linewidth of a single spin chain is typically proportional to temperature. This broadening with lowering temperature is attributed to anisotropic interchain interactions and has been indeed observed in several kinds of three-dimensional (3D) magnets of weakly coupled spin chains above the 3D ordering temperature. We demonstrate that our theory can account for anomalous behaviors of the linewidths in an $S=1/2$ four-leg spin tube compound Cu${}_2$Cl${}_4\cdot$H${}_8$C${}_4$SO${}_2$ (abbreviated to Sul-Cu${}_2$Cl${}_4$) and a three-dimensionally coupled $S=1/2$ spin chain compound CuCl${}_2\cdot 2$NC${}_5$H${}_5$.

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• Anisotropy of Magnetic Interactions in the Spin-Ladder Compound (C${}_5$H${}_{12}$N)${}_2$CuBr${}_4$
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Cited by in corpus (15)

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• ESR study of the spin ladder with uniform Dzyaloshinskii-Moria interaction
• ESR modes in a Strong-Leg Ladder in the Tomonaga-Luttinger Liquid Phase
• Dynamical response and dimensional crossover for spatially anisotropic antiferromagnets
• Quantum critical phenomena in a spin-1/2 frustrated square lattice with spatial anisotropy
• Angular dependence of electron spin resonance for detecting quadrupolar liquid state of frustrated spin chains
• Dimensional modulation of spontaneous magnetic order in quasi-two-dimensional quantum antiferromagnets
• Theory of the inverse Faraday effect in dissipative Rashba electron systems: Floquet engineering perspective
• Microscopic theory of spin Seebeck effect in antiferromagnets
• Two-photon driven magnon-pair resonance as a signature of spin-nematic order
• Electron Spin Resonance in a Spin-1/2 Heisenberg Strong-rung Ladder
• Control of superexchange interactions with DC electric fields
• Electron spin resonance study of spin relaxation in the strong-leg spin ladder with nonmagnetic dilution
• Magnetic resonance of collective paramagnets with gapped excitations spectrum
• Properties of an organic model $S=1$ Haldane chain system