Magnetic resonance in a pyrochlore antiferromagnet Gd2Ti2O7

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

doi:10.1103/PhysRevB.73.212402

Magnetic resonance in a pyrochlore antiferromagnet Gd2Ti2O7

Strongly Correlated Electrons 2012-02-02 v1

Authors: 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.

Keywords

magnetic materials and spin systems magnetic structure frustrated magnetism

Cite

@article{arxiv.cond-mat/0603653,
  title  = {Magnetic resonance in a pyrochlore antiferromagnet Gd2Ti2O7},
  author = {S. S. Sosin and A. I. Smirnov and L. A. Prozorova and G. Balakrishnan and M. E. Zhitomirsky},
  journal= {arXiv preprint arXiv:cond-mat/0603653},
  year   = {2012}
}

Comments

4 pages, 4 figures

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