The electronic and magnetic properties of Mn:Ge(111) interfaces have been investigated by photoelectron spectroscopy and SQUID magnetometry. An ordered, metallic and ferromagnetic, Mn:Ge(111) interface and a disordered, semiconducting and paramagnetic, MnxGe1-x surface alloy have been considered. An analysis of the Mn 2p X-ray photoemission core line shows that the former interface can be described by a single-configuration Mn 3d6 initial state, while the latter presents satellite features typical of Mn-based diluted magnetic semiconductors, characterized by relevant ligand-to-metal charge transfer effects.
Dash, S., Mozzati, M., Galinetto, P., Drera, G., Pagliara, S., Sangaletti, L. (2012). Magnetism and electronic properties of Mn:Ge(111) interfaces probed by core level photoemission spectroscopy. In International Conference on Strongly Correlated Electron Systems, SCES 2011. Institute of Physics Publishing [10.1088/1742-6596/391/1/012088].
Magnetism and electronic properties of Mn:Ge(111) interfaces probed by core level photoemission spectroscopy
Drera G;
2012
Abstract
The electronic and magnetic properties of Mn:Ge(111) interfaces have been investigated by photoelectron spectroscopy and SQUID magnetometry. An ordered, metallic and ferromagnetic, Mn:Ge(111) interface and a disordered, semiconducting and paramagnetic, MnxGe1-x surface alloy have been considered. An analysis of the Mn 2p X-ray photoemission core line shows that the former interface can be described by a single-configuration Mn 3d6 initial state, while the latter presents satellite features typical of Mn-based diluted magnetic semiconductors, characterized by relevant ligand-to-metal charge transfer effects.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.