Electron Spin Resonance of the ferromagnetic Kondo lattice CeRuPO

T. Förster; J. Sichelschmidt; C. Krellner; C. Geibel; F. Steglich

doi:10.1088/0953-8984/22/43/435603

Electron Spin Resonance of the ferromagnetic Kondo lattice CeRuPO

Strongly Correlated Electrons 2010-10-13 v1

Authors: T. Förster , J. Sichelschmidt , C. Krellner , C. Geibel , F. Steglich

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Abstract

The spin dynamics of the ferromagnetic Kondo lattice CeRuPO is investigated by Electron Spin Resonance (ESR) at microwave frequencies of 1, 9.4, and 34~GHz. The measured resonance can be ascribed to a rarely observed bulk Ce3+ resonance in a metallic Ce compound and can be followed below the ferromagnetic transition temperature Tc=14 K. At T>Tc the interplay between the RKKY-exchange interaction and the crystal electric field anisotropy determines the ESR parameters. Near Tc the spin relaxation rate is influenced by the critical fluctuations of the order parameter.

Keywords

electron spin resonance ferromagnetic Kondo lattice CeRuPO Ce3+ resonance RKKY interaction crystal electric field critical fluctuations

Cite

@article{arxiv.1009.4108,
  title  = {Electron Spin Resonance of the ferromagnetic Kondo lattice CeRuPO},
  author = {T. Förster and J. Sichelschmidt and C. Krellner and C. Geibel and F. Steglich},
  journal= {arXiv preprint arXiv:1009.4108},
  year   = {2010}
}

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This is an article accepted for publication in Journal of Physics: Condensed Matter

Electron Spin Resonance of the ferromagnetic Kondo lattice CeRuPO

Abstract

Keywords

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