Cd_1-x/Zn_x/Te electric properties, equation of state and phase transition under high pressure

The relations among resistance, capacitance and pressure for Cd_1-x/Zn_x/Te(×=0.04) compound at room temperature and in the pressure range up to 17 GPa were measured in a diamond anvil cell. The experimental results indicate that the compound undergoes two electronic structure transitions at about 3.1 GPa and 5 GPa and two crystal structure transitions at above 3.1 GPa and about 5.7 GPa. The p-V relationship for the compound at room temperature and in the pressure range up to 4.5 GPa was obtained by using a piston-cylinder type device. The phase transition in the compound occurs at about 3.8 GPa. Its equations of state before and after phase transition, Gruneisen parameter, bulk modulus and the first order pressure derivative of bulk modulus were given.