Magnetization of epitaxial MnGe alloys on Ge(111) substrates

Gunnella, R; Morresi, L; Pinto, N; Murri, R; Ottaviano, L; Passacantando, M; D'Orazio, F; Lucari, F

doi:10.1016/j.susc.2004.12.021

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The structural and magnetic properties of an Mn rich solid phase epitaxy MnxGe1-x alloy grown on a clean 2 x 8-Ge(111) surface, with a Curie temperature of about 300 K are investigated. Magneto-optical Kerr effect infers the existence of in-plane easy magnetization direction. We describe the epitaxial registry condition, the room temperature-zero field magnetic structure observed by magnetic force microscopy and the magneto-optical properties. The observations are consistent with the formation of epitaxial Mn5Ge3 alloy, with a modulated magnetic structure characterized by asymmetric 180degrees Bloch walls consisting of a vortex-like configuration of the local magnetization. (C) 2005 Elsevier B.V. All rights reserved.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11697/3250

Titolo:	Magnetization of epitaxial MnGe alloys on Ge(111) substrates
Autori interni:	PASSACANTANDO, MAURIZIO D'ORAZIO, FRANCO OTTAVIANO, LUCA
Data di pubblicazione:	2005
Rivista:	SURFACE SCIENCE
Abstract:	The structural and magnetic properties of an Mn rich solid phase epitaxy MnxGe1-x alloy grown on a clean 2 x 8-Ge(111) surface, with a Curie temperature of about 300 K are investigated. Magneto-optical Kerr effect infers the existence of in-plane easy magnetization direction. We describe the epitaxial registry condition, the room temperature-zero field magnetic structure observed by magnetic force microscopy and the magneto-optical properties. The observations are consistent with the formation of epitaxial Mn5Ge3 alloy, with a modulated magnetic structure characterized by asymmetric 180degrees Bloch walls consisting of a vortex-like configuration of the local magnetization. (C) 2005 Elsevier B.V. All rights reserved.
Handle:	http://hdl.handle.net/11697/3250
Appare nelle tipologie:	1.1 Articolo in rivista

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