Thermal transport properties of (formula presented)

The thermal transport properties and magnetic susceptibility of (formula presented) have been studied. The thermoelectric power with a positive sign shows a nearly T-linear increase up to ∼150 K but shows a saturated behavior at higher temperatures, which suggests the existence of two types of charge carrier. The magnetic susceptibility above (formula presented) shows a Pauli paramagnetism but shows a substantial T dependence which should include the information of the band structure of (formula presented) The thermal conductivity shows a suppression below (formula presented) without a clear anomaly at (formula presented) which is a result of the reduction of the normal charge carrier concentration below (formula presented)