A.M. Stoneham, K.A. Müller, et al.
Solid State Communications
We have investigated the Oh1 to D4h18 structural phase transition in RbCaF3 under near-[100] stress, by monitoring the electron-paramagnetic resonance lines of Gd3+ (S=72) on a Ca2+ site. We find that the first-order transition at zero stress becomes second order at t=1.90.3 kg/mm2 and Tt=195.30.1 K. At this tricritical point, and up to =4.80.3 kg/mm2, the exponent of the temperature dependence of the rotational order parameter is =0.180.02. © 1979 The American Physical Society.
A.M. Stoneham, K.A. Müller, et al.
Solid State Communications
W. Berlinger, K.A. Mueller, et al.
Congress AMPERE 1983
O.F. Schirmer, K.W. Blazey, et al.
Physical Review B
K.A. Müller, W. Berlinger, et al.
Physical Review Letters