Two-Cannel Kondo Effect in Glass-Like ThAsSe

Details Two-Cannel Kondo Effect in Glass-Like ThAsSe Two-Cannel Kondo Effect in Glass-Like ThAsSe

2005-02-02

arxiv.org/abs/cond-mat/0502057v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

We present low-temperature heat and charge transport as well as caloric properties of a ThAsSe single crystal. An extra -AT1/2 term in the electrical resistivity, independent of magnetic fields as high as 14 T, provides evidence for an unusual scattering of conduction electrons. Additionally, both the thermal conductivity and specific heat show a glass-type temperature dependence which signifies the presence of tunneling states. These observations apparently point to an experimantal realization of a two-channel Kondo effect derived from structural two-level systems.

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