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Structure characterisation of MBE-grown ZnSe:Cr layers
|Michel Jouanne 2, Jean-Francois Morhange 2, Elzbieta Dynowska 1, Elżbieta Lusakowska 1, Wojciech Szuszkiewicz 1, Laurens W. Molenkamp 3, Grzegorz Karczewski 1,3|
1. Polish Academy of Sciences, Institute of Physics, al. Lotników 32/46, Warszawa 02-668, Poland
The stability of the ferromagnetic state in Cr-based diluted magnetic semiconductors (DMS) has been recently predicted. A few years ago, the low-temperature MBE technique resulted in the successful growth of II-VI-based DMS incorporating a relatively large Cr concentration, i.e., (Zn,Cr)Se epilayers with Cr concentration up to 2.1% were obtained . Evidence of a strong ferromagnetic coupling between Cr ions was given in Ref.. However, the possible domination of some magnetic properties of investigated layers by the presence of small grains of ZnCr2Se4 spinel was also suggested (direct proof of even partial substitution of Zn by Cr in ZnSe has not been found).
Presentation: oral at E-MRS Fall Meeting 2003, Symposium B, by Wojciech Szuszkiewicz
See On-line Journal of E-MRS Fall Meeting 2003
Submitted: 2003-05-27 17:35 Revised: 2009-06-08 12:55