Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-1055 - C8-1056
DOI https://doi.org/10.1051/jphyscol:19888482
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-1055-C8-1056

DOI: 10.1051/jphyscol:19888482

H - T PHASE DIAGRAMS AND CRITICAL PHENOMENA OF CANONICAL SPIN GLASSES AuFe AND AgMn

T. Taniguchi1 et Y. Miyako2

1  Department of Metallurgical Engineering, Muroran Institute of Technology, Muroran 050.
2  Department of Physics, Faculty of Science, Hokkaido University, Sapporo 060, Japan


Abstract
The magnetic field vs. temperature (H - T) phase diagram is determined from linear χ0 and nonlinear χ2 susceptibilities perpendicular to H for metallic spin glasses AuFe (4 at. % Fe) and AgMn (4 at. % Mn). The χ2 signal has a round maximum at T = T1 (H) and below T1 (H) the imaginary part of χ0 increases rapidly around T = T2 (H).