Comment on "Correlation between Bulk Thermodynamic Measurements and the Low-Temperature-Resistance Plateau in SmB6"
Abstract
Low-temperature-resistivity plateau observed in SmB6 single crystal,which is due to surface, not bulk, conduction has been confirmed from electrical transport measurements. Recently, the correlation between bulk thermodynamic measurements and the low-temperature-resistance plateau in SmB6 have been investigated and a change in Sm valence at the surface has been obtained from x-ray absorption spectroscopy and x-ray magnetic circular dichroism. Here we show that the statement of the report are not supported by the results from x-ray absorption spectroscopy and x-ray magnetic circular dichroism.
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