Author/Authors :
Gunnella، نويسنده , , R. and Morresi، نويسنده , , L. and Pinto، نويسنده , , N. and Murri، نويسنده , , R. and Ottaviano، نويسنده , , L. and Passacantando، نويسنده , , M. and D’Orazio، نويسنده , , F. and Lucari، نويسنده , , F.، نويسنده ,
Abstract :
The structural and magnetic properties of an Mn rich solid phase epitaxy MnxGe1−x alloy grown on a clean 2 × 8-Ge(1 1 1) 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 180° Bloch walls consisting of a vortex-like configuration of the local magnetization.
