H. Maletta, A.P. Malozemoff, et al.
Solid State Communications
Using a novel magnetometer technique probing a (15-m)3 volume of a sample directly on top of a dc-SQUID chip with integrated pickup loops and field coils, we measure simultaneously the magnetic fluctuation noise and the ac susceptibility of a spin-glass, Eu0.4Sr0.6S, as a function of temperature. The data demonstrate directly the validity of the fluctuation-dissipation theorem both above and below the freezing temperature. New results on low-frequency dynamics are presented for this sample. © 1986 The American Physical Society.
H. Maletta, A.P. Malozemoff, et al.
Solid State Communications
B. Barbar, A.P. Malozemoff, et al.
Physica B+C
M. Konczykowski, A.P. Malozemoff, et al.
Physica C: Superconductivity and its applications
M.W. McElfresh, Y. Yeshurun, et al.
Physica A: Statistical Mechanics and its Applications