Temperature dependence studies of the EFG at111Cd probes located in some intermetallic compounds

The temperature dependences of the electric field gradient (EFG) at¹¹¹Cd probes in nickel-indium and indium-tellurium intermetallic compounds have been studied by means of the time differential perturbed angular correlation of gamma rays (TDPAC). The room temperature interaction frequencies (e ² Qq/h) in each case were determined as In₂Te₅ (136 MHz), Ni₃In (13.8 MHz), NiIn (252 and 337 MHz) (two sites), and Ni₂In₃ (162 and 266 MHz) (two sites). The TDPAC pattern of¹¹¹Cd in NiIn did not agree with the previous assignment of the crystal structure. A general discussion of the results related to other temperature dependence studies of the EFG is presented and a general trend is discerned.Supported in part by the US Energy and Research Development Administration.