Electron Spin Resonance in a Spin-1/2 Heisenberg Strong-rung Ladder

Abstract

Cu(C${}_8$H${}_6$N${}_2$)Cl${}_2$, a strong-rung spin-1/2 Heisenberg ladder compound, is probed by means of electron spin resonance (ESR) spectroscopy in the field-induced gapless phase above $H_{c1}$. The temperature dependence of the ESR linewidth is analyzed in the quantum field theory framework, suggesting that the anisotropy of magnetic interactions plays a crucial role, determining the peculiar low-temperature ESR linewidth behavior. In particular, it is argued that the uniform Dzyaloshinskii-Moriya interaction (which is allowed on the bonds along the ladder legs) can be the source of this behavior in Cu(C${}_8$H${}_6$N${}_2$)Cl${}_2$.

References in corpus (12)

• Bose-Einstein Condensation in Magnetic Insulators
• Coupled Ladders in a Magnetic Field
• Controlling Luttinger liquid physics in spin ladders under a magnetic field
• Electron Spin Resonance in S=1/2 antiferromagnetic chains
• Incommensurate spin correlations in Heisenberg spin-1/2 zig-zag ladders
• Theory of Low Temperature Electron Spin Resonance in Half-integer Spin Antiferromagnetic Chains
• Electron Spin Resonance in sine-Gordon spin chains in the perturbative spinon regime
• Anisotropy of Magnetic Interactions in the Spin-Ladder Compound (C${}_5$H${}_{12}$N)${}_2$CuBr${}_4$
• ESR study of the spin ladder with uniform Dzyaloshinskii-Moria interaction
• Electron Spin Resonance in Quasi-One-Dimensional Quantum Antiferromagnets: Relevance of Weak Interchain Interactions
• Electron spin resonance shift in spin ladder compounds
• The tunable quantum spin ladder Cu(Qnx)(Cl${}_{(1-x)}$Br${}_x$)${}_2$

Cited by in corpus (2)

• Quantum criticality in the coupled two-leg spin ladder Ba2CuTeO6
• Magnetic phase diagram of a spin S=1/2 antiferromagnetic two-leg ladder in the presence of modulated along legs Dzyaloshinskii-Moriya interaction