Effect of the magnetic order on the optical-absorption edge in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cd</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mi mathvariant="normal">−</mml:mi><mml:mi mathvariant="normal">x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Mn</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="normal">x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>Te

1985138 citationsJournal Article

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Abstract

The effect of the magnetic order on the optical-absorption edge of the semiconductor ${\mathrm{Cd}}_{1\mathrm{\ensuremath{-}}\mathrm{x}}$${\mathrm{Mn}}_{\mathrm{x}}$Te is studied. A magnetic blue shift is observed when the temperature decreases below the N\'eel temperature. This effect is not affected by the magnetic order at low temperature. With the analysis of the experimental data, it is proposed that the exchange interaction gives rise to a red shift of the absorption edge. This phenomenon, however, decreases with temperature to such an extent that an extra blue shift appears at low temperatures.

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Semiconductor Quantum Structures and Devices Advanced Semiconductor Detectors and Materials Chalcogenide Semiconductor Thin Films

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Published in: Physical review. B, Condensed matter

Volume 31, Issue 12, pp. 7995-7999

DOI: 10.1103/physrevb.31.7995

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