EPR of Yb 3+ ions in a monoclinic KY(WO 4 ) 2 single crystal

A. D. Prokhorov, M. T. Borowiec (), M. C. Pujol, I. M. Krygin, A. A. Prokhorov, V. P. Dyakonov, P. Aleshkevych, T. Zayarnyuk and H. Szymczak

The European Physical Journal B: Condensed Matter and Complex Systems, 2007, vol. 55, issue 4, 389-395

Abstract: The electron paramagnetic resonance (EPR) of Yb 3+ ions in a KY(WO 4 ) 2 single crystal was investigated at T=4.2 K and fixed frequency of 9.38 GHz. The resonance absorption observed on the lowest Kramers doublet represents the complex superposition of three spectra, corresponding to the ytterbium isotopes with different nuclear moments. The EPR spectrum is characterized by a strong anisotropy of the g-factors. The temperature dependence of the g-factors is shown to be caused by the strong spin-orbital and orbital-lattice coupling. The resonance lines broaden with increasing temperature due to the short spin-lattice relaxation times. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Keywords: 75.30.Gw Magnetic anisotropy; 76.30.-v Electron paramagnetic resonance and relaxation (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1140/epjb/e2007-00073-y

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