The results of155Gd Mössbauer studies (above 1·5K) of the oxides, Bi3·5Gd0·5Ca3Sr3Cu4Oy and Bi2Sr2Ca1−xGdxCu2Oy (x=0·25 and 0·5) are reported. The observed electric quadrupolar split resonance patterns suggest that Gd ions prefer to occupy Ca site in both series. The spectral features give evidence for paramagnetic relaxation of isolated Gd ions at low temperatures.
Volume 43, 2020
Continuous Article Publishing mode
Click here for Editorial Note on CAP Mode