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

A. N. Ponomaryov; M. Ozerov; L. Zviagina; J. Wosnitza; K. Yu. Povarov; F. Xiao; A. Zheludev; C. Landee; E. Čižmár; A. A. Zvyagin; S. A. Zvyagin

doi:10.1103/PhysRevB.93.134416

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

Strongly Correlated Electrons 2016-04-19 v3

Authors: A. N. Ponomaryov , M. Ozerov , L. Zviagina , J. Wosnitza , K. Yu. Povarov , F. Xiao , A. Zheludev , C. Landee , E. Čižmár , A. A. Zvyagin , S. A. Zvyagin

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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 $_2$ .

Keywords

electron spin resonance Heisenberg ladder Dzyaloshinskii-Moriya interaction spin-1/2 quantum field theory

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@article{arxiv.1509.01022,
  title  = {Electron Spin Resonance in a Spin-1/2 Heisenberg Strong-rung Ladder},
  author = {A. N. Ponomaryov and M. Ozerov and L. Zviagina and J. Wosnitza and K. Yu. Povarov and F. Xiao and A. Zheludev and C. Landee and E. Čižmár and A. A. Zvyagin and S. A. Zvyagin},
  journal= {arXiv preprint arXiv:1509.01022},
  year   = {2016}
}

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

Abstract

Keywords

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