Phase Transition Spin Glass-Long Magnetic Order in New Thiospinels Containing Cu, Cr and Sb

• Authors: L.I. Koroleva , R.V. Demin , M Kh Mashaev , D.A. Saiflullaeva , T.V. Virovets , Ya.A. Kessler , D.S. Filimonov
• Languages of publication: EN

Abstracts

EN

The reentrant spin-glass transition was found in the samples of solid solutions CuCr_{1.5+0.5x}Sb_{0.5-0.5x}S_{4} with x=0.34 and 0.4. The transition temperature to the spin-glass state T_{f}, determined from the bend on the temperature dependence of the initial susceptibility in an ac magnetic field, depends on the measurement frequency. It was shown that the dependence T_{f}(ω) obeys the power law 1/ω=(1/ω_{0})[T_{f}/(T_{f} - T*)]^{zν} assuming existence of the phase transition at T*. The maximum of the temperature dependence of electroresistivity was found for the sample with x=0.34 in T* region. These facts show that considered spin-glass-long magnetic order transition is the phase transition.

Keywords

EN

75.10.Nr

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 92
• Issue: 2
• Pages: 441-444

Dates

published

1997-08

Contributors

author

L.I. Koroleva

• M.V. Lomonosov Moscow State University, 119899 Moscow, Russia

author

R.V. Demin

• M.V. Lomonosov Moscow State University, 119899 Moscow, Russia

author

M Kh Mashaev

• M.V. Lomonosov Moscow State University, 119899 Moscow, Russia

author

D.A. Saiflullaeva

• M.V. Lomonosov Moscow State University, 119899 Moscow, Russia

author

T.V. Virovets

• M.V. Lomonosov Moscow State University, 119899 Moscow, Russia

author

Ya.A. Kessler

• M.V. Lomonosov Moscow State University, 119899 Moscow, Russia

author

D.S. Filimonov

• M.V. Lomonosov Moscow State University, 119899 Moscow, Russia