Search for Dimensionality Crossover of Spin-Glass Freezing in Superlattices of Cd_{0.50}Mn_{0.50}Te/CdTe

• Authors: M. Sawicki , T. Dietl , G. Karczewski , T. Wojtowicz , J. Kossut , T. Skośkiewicz
• Languages of publication: EN

Abstracts

EN

SQUID measurements of the time decay of the thermoremanent magnetization (field-cooled in 1000 Oe) at long time scale, 10^{2} < t < 10^{5} s, are presented for MBE grown Cd_{0.50}Mn_{0.50}Te. We found that for both thin (32 Å) and thick (2500 Å) layers the spin-glass dynamics is characterized by a similar value of k = -(1/T_{f})(dT_{f}/dlogt) > 0.05, indicating the absence of the phase transition at nonzero temperature under the experimental conditions.

Keywords

EN

75.50.-y; 75.50.Rr; 75.50.Lk

Discipline

• 75.50.-y: Studies of specific magnetic materials
• 75.50.Lk: Spin glasses and other random magnets

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 90
• Issue: 5
• Pages: 919-922

Dates

published

1996-11

Contributors

author

M. Sawicki

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

T. Dietl

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

G. Karczewski

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

T. Wojtowicz

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

J. Kossut

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

T. Skośkiewicz

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

Identifiers

DOI

10.12693/APhysPolA.90.919