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Crystal-field study in rare-earth-doped semiconducting YBiPt


Electron spin resonance (ESR) and magnetic-susceptibility experiments in the rare-earth-doped (R=Nd, Er, and Yb) cubic semiconducting YBiPt allow estimates of the fourth (Formula presented) and sixth (Formula presented) order crystal-field parameters for this compound. It is found that these parameters are of the same order for all the R studied. On the other hand, no crystal-field effects were found for the (Formula presented) doped single-crystal system. Consistent with the small gap semiconducting character of the YBiPt intermetallic compound, a Dysonian ESR line shape with no g shift and Korringa broadening was observed. © 1999 The American Physical Society.

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