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arXiv · 1202.0783

Magnetic resonance in the ordered phases of the 2D frustrated quantum magnet Cs2CuCl4

A. I. Smirnov·K. Yu. Povarov·S. V. Petrov·A. Ya. Shapiro
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Abstract

The temperature evolution of the electron spin resonance is studied at cooling the crystal samples of Cs2CuCl4 through the Neel point 0.62 K. A coexistence of the high-frequency spinon type resonance developed in the spin-liquid phase and of the low-frequency antiferromagnetic resonance was found in the ordered phase. The low-frequency magnetic resonance spectrum in the low field range has two gapped branches and corresponds well to the spectrum of spin excitations of a planar spiral spin structure with two axes of the anisotropy. The field induced phase transitions result in a more complicated low-frequency spectra.

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A. I. Smirnov, K. Yu. Povarov, S. V. Petrov, A. Ya. Shapiro. 2012-02-03. Magnetic resonance in the ordered phases of the 2D frustrated quantum magnet Cs2CuCl4. https://doi.org/10.1103/physrevb.85.184423

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