R.J. Gambino, T.R. McGuire
Journal of Magnetism and Magnetic Materials
The Eu1-xGdxS system goes from ferromagnetism for small x to antiferromagnetism for large x[1]. We have studied the specific heat and the magnetic properties of that system in the concentration range where the Curie-Weiss temperature, cursive-theta sign, changes sign. Both measurements clearly indicate a spin-glass freezing for x ∼ 0.5 and a mixed state for x ≳ 0.6. Ferromagnetic clusters have been observed in both the spin-glass and in the mixed regimes.
R.J. Gambino, T.R. McGuire
Journal of Magnetism and Magnetic Materials
T.R. McGuire, R.J. Gambino, et al.
IEEE Transactions on Magnetics
S. Von Molnar, B. Barbara, et al.
Journal of Applied Physics
L.J. Tao, F. Holtzberg
Physical Review B