Investigation of Spin-Glass Transition in Semimagnetic Quantum Wells Based on Cd_{1-x}Mn_{x}Te by Means of Optical Spectroscopy

• Authors: U. Zehnder , D.R. Yakovlev , W. Ossau , A. Waag , G. Landwehr , T. Wojtowicz , G. Karczewski , J. Kossut
• Languages of publication: EN

Abstracts

EN

The spin-glass transition in Cd_{1-x}Mn_{x}Te epitaxial layers and bulk samples with 0.24 ≤ x ≤ 0.43 and in quantum well structures on the basis of Cd_{1-x}Mn_{x}Te were investigated by means of optical spectroscopy. Reduction of dimensionality of Cd_{1-x}Mn_{x}Te layers down to the quasi-two-dimensional case realized in Cd_{1-x}Mn_{x}Te/Cd_{1- y}Mn_{y}Te heterostructures frustrates the spin-glass formation, which is in agreement with theoretical predictions. The spin-glass formation is also frustrated in the vicinity of interfaces between semimagnetic and nonmagnetic semiconductors in CdTe/Cd_{1-x}Mn_{x}Te quantum wells.

Keywords

EN

71.35.Ji; 78.55.Et

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 92
• Issue: 5
• Pages: 1075-1078

Dates

published

1997-11

Contributors

author

U. Zehnder

• Physikalisches Institut der Universität Würzburg, 97074 Würzburg, Germany

author

D.R. Yakovlev

• Physikalisches Institut der Universität Würzburg, 97074 Würzburg, Germany

author

W. Ossau

• Physikalisches Institut der Universität Würzburg, 97074 Würzburg, Germany

author

A. Waag

• Physikalisches Institut der Universität Würzburg, 97074 Würzburg, Germany

author

G. Landwehr

• Physikalisches Institut der Universität Würzburg, 97074 Würzburg, Germany

author

T. Wojtowicz

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

author

G. Karczewski

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

author

J. Kossut

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