Photoacoustic spectroscopy of diluted magnetic semiconductors

Autor:	T. Papa, A. Kisiel, A. Rodzik, M. Piacentini, D. Debowska, A. C. Felici, F. Lama
Rok vydání:	1996
Předmět:	Absorption edge Transition metal Atomic electron transition Chemistry Ionization Attenuation coefficient Analytical chemistry General Physics and Astronomy Magnetic semiconductor Absorption (electromagnetic radiation) Photoacoustic spectroscopy
Zdroj:	Journal of Applied Physics. 80:6925-6930
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.363766
Popis:	The absorption coefficient of several diluted magnetic semiconductors was measured below the fundamental absorption edge of the pure host compound at room temperature using the photoacoustic technique. Several absorption bands have been detected and assigned to electronic transitions between the crystal field split 3d levels of the transition metal ion. In addition, weak absorption thresholds have been observed and assigned to the ionization of the transition metal d states. An energy level diagram of the d states has been discussed.The absorption coefficient of several diluted magnetic semiconductors was measured below the fundamental absorption edge of the pure host compound at room temperature using the photoacoustic technique. Several absorption bands have been detected and assigned to electronic transitions between the crystal field split 3d levels of the transition metal ion. In addition, weak absorption thresholds have been observed and assigned to the ionization of the transition metal d states. An energy level diagram of the d states has been discussed.
Databáze:	OpenAIRE
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