Evolution of the heavy fermion state in Ce2IrIn8

We report muSR Knight shift and susceptibility studies for 1T applied field along the crystalline c- and a-axes of the heavy fermion compound Ce2IrIn8. Below a characteristic temperature T* one observes a 'Knight-shift anomaly' in which the Knight shift constant K no longer scales linearly...

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Published inPhysica. B, Condensed matter Vol. 374-375; pp. 184 - 187
Main Authors Heffner, R.H., Morris, G.D., Bauer, E.D., Sarrao, J.L., Thompson, J.D., MacLaughlin, D.E., Shu, L.
Format Journal Article
LanguageEnglish
Published 01.03.2006
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Summary:We report muSR Knight shift and susceptibility studies for 1T applied field along the crystalline c- and a-axes of the heavy fermion compound Ce2IrIn8. Below a characteristic temperature T* one observes a 'Knight-shift anomaly' in which the Knight shift constant K no longer scales linearly with chi. This anomaly is consistent with a scaling law in which the susceptibility chi is composed of a high-temperature component corresponding to non-interacting local moments and a low-temperature component chicf(1-T/T*)ln(T*/T) which characterizes the heavy-electron state below T*. We find that T* is anisotropic, with and , and derive the magnitudes of .
Bibliography:ObjectType-Article-2
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ISSN:0921-4526
DOI:10.1016/j.physb.2005.11.048