Search for Dimensional Effects in Spin-Glass Transition in Thin Cd_{1-x}Mn_{x}Te Multilayers

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

Abstracts

EN

SQUID magnetic measurements of CdTe/Cd_{1-x}Mn_{x}Te, x ≃ 0.5, multi-layers with different CdMnTe layer thickness w reveal the persistence of the spin-glass irreversibilities down to ≃ 16 Å thin layers, i.e., well beyond the previously postulated 40 Å as a quasi-2D threshold. The freezing temperature T_{f} is found to be a monotonic function of w, and it obeys a scaling law T_{f} ∝ w^{a}, with a 0.8 similar to that for canonical spin-glasses. Magnetic properties of all studied structures are found to be independent of the orientation of the magnetic field.

Keywords

EN

75.50.Rr; 75.50.Lk; 75.30.Kz; 75.50.-y

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 88
• Issue: 5
• Pages: 1038-1042

Dates

published

1995-11

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

T. Skośkiewicz

• 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