Conductance Fluctuations in Quantum Wires of n-CdTe and n-Cd_{1-x}Mn_{x}Te

• Authors: J. Jaroszyński , J. Wróbel , M. Sawicki , T. Skośkiewicz , G. Karczewski , T. Wojtowicz , J. Kossut , T. Dietl , E. Kamińska , E. Papis , A. Barcz , A. Piotrowska
• Languages of publication: EN

Abstracts

EN

We present millikelvin studies of magnetoconductance in submicron wires of In-doped n^{+}-CdTe and n^{+}-Cd_{0.99}Mn_{0.01}Te epilayers. Weak-field magnetoresistance which arises from quantum localization as well as universal conductance fluctuations have been observed. The exchange coupling to magnetic impurities is shown to decrease the correlation field of the fluctuations. This novel effect is interpreted by invoking a new driving mechanism of the magnetoconductance fluctuations - the redistribution of the electrons between energy levels of the system, induced by the giant s-d spin-splitting of the electronic states.

Keywords

EN

72.15.Rn; 73.61.Ga; 73.20.Fz

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 88
• Issue: 5
• Pages: 1000-1004

Dates

published

1995-11

Contributors

author

J. Jaroszyński

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

author

J. Wróbel

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

author

M. Sawicki

• 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

author

T. Dietl

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

author

E. Kamińska

• Institute of Electron Technology, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

E. Papis

• Institute of Electron Technology, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

A. Barcz

• Institute of Electron Technology, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

A. Piotrowska

• Institute of Electron Technology, Al. Lotników 32/46, 02-668 Warszawa, Poland