Sperl, Matthias and Maccherozzi, F. and Borgatti, F. and Verna, A. and Rossi, G. and Soda, M. and Schuh, Dieter and Bayreuther, Günther and Wegscheider, Werner and Cezar, J. C. and Brookes, N. B. and Back, Christian and Panaccione, G. (2010) Identifying the character of ferromagnetic Mn in epitaxial Fe/(Ga,Mn)As heterostructures. Physical Review B (PRB) 81, 035211.
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We demonstrate that the growth of Fe/(Ga,Mn)As heterointerfaces can be efficiently controlled by epitaxy and that robust ferromagnetism of the interfacial Mn atoms is induced at room temperature by the proximity effect. X-ray magnetic circular dichroism and x-ray resonant reflectivity data, supported by theoretical calculations, were used to monitor both temperature and magnetic field dependence of the Mn magnetic moment in the semiconducting host. We identify distinct Mn populations, each of them with specific magnetic character.
|Date:||27 January 2010|
|Institutions:|| Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back|
Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Günther Bayreuther
Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider
|Projects:||SFB 689: Spinphänomene in reduzierten Dimensionen|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||22 Mar 2010 07:26|
|Last Modified:||27 Aug 2012 11:33|