Effect of pressure on the electrical resistivity of double perovskite SrFeWMoO

Abstract: The electrical resistivity of SrFeWMoO has been measured under high pressure in order to make the transport properties of this compound clear. The resistivity decreased with increasing pressure and the magnitude of pressure coefficient below 1GPa is larger than that above 1GPa. It is found that the electrical resistivity shows a temperature dependence, which implies that the conduction of electrons is mainly dominated by a variable range hopping. The coefficient of is decreased by applying pressure and is different between, below and above 1GPa. These results suggest that a kind of phase transition or crossover occurs around 1GPa. [Copyright &y& Elsevier]