Photogalvanic Effect in Semiparabolic Quantum Well

• Authors: K. Majchrowski , W. Paśko , I. Tralle
• Languages of publication: EN

Abstracts

EN

In this work we studied the charge carriers behaviour in quantum structures where the symmetry with respect to space coordinates and time-reversal symmetry are broken simultaneously. As the model of such structures we considered finite semiparabolic quantum well (we considered earlier the case of triangular QW) placed in external magnetic field. We have shown by numerical analysis that the energy spectra of charge carriers in such structures are anisotropic with respect to in-plane (transverse) motion ϵ_{n}( + k_{x}) ≠ ϵ_{n}(-k_{x}). This leads to the anisotropy of charge carriers in-plane momentum transfer which, in its turn leads to the anisotropy of photoconductivity σ( + k_{x}) ≠ σ(-k_{x}) and as it follows from our calculations, the effect though not very great, could be measurable for the magnetic field of about few T.

Keywords

EN

72.40.+w; 73.21.Fg

Discipline

• 73.21.Fg: Quantum wells
• 72.40.+w: Photoconduction and photovoltaic effects

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 116
• Issue: 5
• Pages: 854-856

Dates

published

2009-11

Contributors

author

K. Majchrowski

• Institute of Physics, University of Rzeszów, al. T. Rejtana 16A35-310 Rzeszów, Poland

author

W. Paśko

• Institute of Physics, University of Rzeszów, al. T. Rejtana 16A35-310 Rzeszów, Poland

author

I. Tralle

• Institute of Physics, University of Rzeszów, al. T. Rejtana 16A35-310 Rzeszów, Poland

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Identifiers

DOI

10.12693/APhysPolA.116.854