Photoemission Study of Mn 3d Electrons in the Valence Band of Mn/GeMnTe
- Pietrzyk, M. A.
- Kowalski, B. J.
- Orłowski, B. A.
- Knoff, W.
- Osinniy, V.
- Kowalik, I. A.
- Story, T.
- Johnson, R. L.
DOIAbstract
We present the results of the electronic band structure study of Ge$\text{}_{0.9}$Mn$\text{}_{0.1}$Te epilayers, clean and modified in situ by deposition of manganese atoms. The sets of resonant photoemission spectra were measured for the photon energy range covering the energy of Mn 3p→3d transition (45<hν<60 eV). They were acquired for the clean surface of the Ge$\text{}_{0.9}$Mn$\text{}_{0.1}$Te sample, after evaporation of 0.5 monolayer Mn and after annealing (at 200ºC) inducing diffusion of Mn atoms into the Ge$\text{}_{0.9}$Mn$\text{}_{0.1}$Te crystal. The Mn 3d contribution to the emission from the valence band of Ge$\text{}_{0.9}$Mn$\text{}_{0.1}$Te was determined and the strength of interaction between Mn and its ligands was discus...
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