Infrared conductivity of metallic (III,Mn)V ferromagnets

Jairo Sinova, T. Jungwirth, S. R. Eric Yang, J. Kučera, Sung Ryul Yang

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

We present a theory of the infrared conductivity and absorption coefficients of metallic (III,Mn)V ferromagnetic semiconductors. We find that the conductivity is dominated by intervalence-band transitions that produce peaks at ℏω∼220 meV and obscure the broadened Drude peak. We demonstrate that transverse f-sum rule measurements can be used to extract accurate values for the free-carrier density, bypassing the severe characterization difficulties that have till now been created by the large anomalous Hall effect in these materials.

Original languageEnglish
Article number041202
Pages (from-to)412021-412024
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number4
Publication statusPublished - 2002 Jul 15

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Hall effect
Carrier concentration
Semiconductor materials
Infrared radiation
conductivity
sum rules
absorptivity
coefficients

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Sinova, J., Jungwirth, T., Eric Yang, S. R., Kučera, J., & Yang, S. R. (2002). Infrared conductivity of metallic (III,Mn)V ferromagnets. Physical Review B - Condensed Matter and Materials Physics, 66(4), 412021-412024. [041202].

Infrared conductivity of metallic (III,Mn)V ferromagnets. / Sinova, Jairo; Jungwirth, T.; Eric Yang, S. R.; Kučera, J.; Yang, Sung Ryul.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 66, No. 4, 041202, 15.07.2002, p. 412021-412024.

Research output: Contribution to journalArticle

Sinova, J, Jungwirth, T, Eric Yang, SR, Kučera, J & Yang, SR 2002, 'Infrared conductivity of metallic (III,Mn)V ferromagnets', Physical Review B - Condensed Matter and Materials Physics, vol. 66, no. 4, 041202, pp. 412021-412024.
Sinova J, Jungwirth T, Eric Yang SR, Kučera J, Yang SR. Infrared conductivity of metallic (III,Mn)V ferromagnets. Physical Review B - Condensed Matter and Materials Physics. 2002 Jul 15;66(4):412021-412024. 041202.
Sinova, Jairo ; Jungwirth, T. ; Eric Yang, S. R. ; Kučera, J. ; Yang, Sung Ryul. / Infrared conductivity of metallic (III,Mn)V ferromagnets. In: Physical Review B - Condensed Matter and Materials Physics. 2002 ; Vol. 66, No. 4. pp. 412021-412024.
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