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.
paper
Charge transfer; Electronic properties; Germanium; Interface states; Magnetic semiconductors; Magnetism; Photoelectron spectroscopy; X ray photoelectron spectroscopy
English
International Conference on Strongly Correlated Electron Systems, SCES 2011 - 29 August 2011 through 3 September 2011
2011
Sebastian, SE; Sutherland, ML; Pugh, E; Grosche, FM; Keeling, J; Panagopoulos, C; Rowley, S; Saxena, SS
International Conference on Strongly Correlated Electron Systems, SCES 2011
2012
391
1
012088
none
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].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/517519
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