Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 4

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

Determination of Exciton Zeeman Splittings in Cd_{1-x}Mn_{x}Te from Faraday Rotation Measurements

100%
Stachow A., Khoi N. T., Gaj J. A.
Acta Physica Polonica A
|
1995
|
vol. 88
|
issue 5
909-912
EN
Reflectivity and Faraday rotation measurements were carried out on Cd_{1-x}Mn_{x}Te bulk crystals in the complete zinc-blende range of composition 0 < x ≤ 0.71. From a comparison of the results of these two experiments for samples with x ≤ 0.3, we demonstrate that the Faraday angle Θ, measured in limited spectral range, is proportional to the energy splitting of exciton states ΔE, measured at the same temperature (2 K) and magnetic field B (up to 5 T). The determined proportionality constant was used to calculate ΔE values also for x > 0.3. This allowed us to find an empirical description of ΔE values for the whole range of compositions as a function of B and x.
2
Content available remote

Magnetooptical Properties of GaAs:Mn

76%
Szczytko J., Stachow A., Mac W., Twardowski A., Becla P., Tworzydło J.
Acta Physica Polonica A
|
1996
|
vol. 90
|
issue 5
951-954
EN
Magnetoreflectance from GaAs:Mn was measured in the free exciton range for B ≤ 5 T and T = 2.0 K. Combining optical results with magnetization data the value for the exchange parameter N_{0}α-N_{0}β =-(2.3 ± 0.6) eV was obtained. Assuming that N_{0}α ≈ +0.2 eV, the ferromagnetic p-d exchange interaction was found with the magnitude N_{0}β ≈ +2.5 eV.
3
Content available remote

Effects of the Spin-Dependent Potential fluctuations on Free Exciton Zeeman Splitting of Zn_{1-x}Mn_{x}Se

76%
Herbich M., Mac W., Stachow A., Twardowski A., Tworzydło J., Demianiuk M.
Acta Physica Polonica A
|
1996
|
vol. 90
|
issue 4
813-816
EN
Magnetoreflectance of free exciton and magnetization in Zn_{1-x}Mn_{x}Se (0.0007 < x < 0.12) were measured. The evaluated proportionality factor between the exciton splitting and the magnetization showed a strong concentration dependence. This effect cannot be explained within the mean field approximation and the virtual crystal approximation and it was described within the model including chemical and magnetic disorder.
4
Content available remote

Temperature Dependence of Energy Gap of Highly Concentrated Cd_{1-x}Mn_{x}Te(0.6 < x ≤ 1.0) Epilayers

64%
Stachow A., Mac W., Khoi N. T., Twardowski A., Karczewski G., Janik E., Wojtowicz T., Kossut J.
Acta Physica Polonica A
|
1995
|
vol. 88
|
issue 5
913-916
EN
The temperature dependence of the energy gap of MBE grown Cd_{1-x}Mn_{x}Te (0.6 < x ≤ 1.0) was measured for 2 K ≤ T ≤ 200 K and B ≤ 5 T. The results are interpreted in the frames of the model predicting that the exchange contribution to the band edge shift is proportional to the product of the magnetic susceptibility and the temperature.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.