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Observation of Anisotropic Exchange in a Spin Ladder by ESR

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Čižmár E., Ozerov M., Krämer K.W., Rüegg Ch., Zvyagin S.A.,
Project Dimensional and Anisotropy Control of Model Quantum Magnets
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Original article (peer-reviewed)

Journal Acta Physica Polonica A
Volume (Issue) 126(1)
Page(s) 238 - 239
Title of proceedings Acta Physica Polonica A
DOI 10.12693/aphyspola.126.238

Open Access

URL http://boris.unibe.ch/id/eprint/59681
Type of Open Access Repository (Green Open Access)

Abstract

We report on high resolution X-band electron spin resonance (ESR) spectroscopy studies of the spinladder material (C5H12N)2CuBr4. Our experiments provide a direct evidence for the presence of anisotropy in (C5H12N)2CuBr4 in contrast to a fully isotropic spin-ladder model employed for this system previously. Lowtemperature angular dependence of ESR transitions is analyzed employing a simple spin-1/2 dimer model with the symmetric anisotropic exchange interaction.
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