Inhaltszusammenfassung

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 (h) over bar omegasimilar to220 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 be...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 (h) over bar omegasimilar to220 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.» weiterlesen» einklappen

Autoren

Klassifikation

DFG Fachgebiet:
3.17 - Theoretische Chemie

DDC Sachgruppe:
Physik