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Magnetic resonance in a pyrochlore antiferromagnet Gd2Ti2O7

S. S. Sosin·A. I. Smirnov·L. A. Prozorova·G. Balakrishnan·M. E. Zhitomirsky
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Abstract

Electron spin resonance study of frustrated pyrochlore Gd2Ti2O7 is performed in a wide frequency band for a temperature range 0.4-30 K, which covers paramagnetic and magnetically ordered phases. The paramagnetic resonance reveals the spectroscopic g-factor about 2.0 and a temperature dependent linewidth. In ordered phases magnetic resonance spectra are distinctive for a nonplanar cubic (or tetrahedral) antiferromagnet with an isotropic susceptibility. In the high-field saturated phase, weakly-dispersive soft modes are observed and their field evolution is traced.

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S. S. Sosin, A. I. Smirnov, L. A. Prozorova, G. Balakrishnan, M. E. Zhitomirsky. 2006-03-24. Magnetic resonance in a pyrochlore antiferromagnet Gd2Ti2O7. https://doi.org/10.1103/physrevb.73.212402

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