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Type: Artigo de periódico
Title: The G-value Of Er3 + Doped Unfilled Skutterudite Cosb3 (th) Reveals The Existence Of An Additional Sixth Order Term In The Crystal Field Hamiltonian
Author: Vargas J.M.
Garcia F.A.
Rettori C.
Garcia D.J.
Sales B.
Schlottmann P.
Oseroff S.B.
Abstract: Electron spin resonance (ESR) experiments have been carried out in single crystals of the unfilled skutterudite CoSb3 doped with Er ions. The X- (9.5 GHz) and Q- (34.4 GHz) band spectra obtained at low temperature (4-20 K) shown a temperature independent g-value of 6.21(5). This g-value can only be explained with the addition of a second sixth order B6 t (O6 2 - O6 6) term to the usual cubic crystal field Hamiltonian. The ESR of Er3 + show the typical temperature dependence of the line-shape and line-width expected for insulating host. © 2009 Elsevier B.V. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/j.physb.2009.07.012
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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