Electron Spectroscopic Studies of Homogenous (GaMn) As Layers
Författare
Summary, in English
By incorporating magnetism into semiconductors, it may possibly be viable to enhance the functionality of materials. An exceptionally important material in this context is GaAs, which can be doped with Mn atoms. (GaMn)As has fascinated research community as a promising candidate for spintronic application. It is quite appealing due to both its compatibility with existing III-V technology and great progress in improving its magnetic properties. Being fabricated by low temperature molecular beam epitaxy (LT-MBE), due to thermal instability at elevated temperatures, the material contains a high density of various defects compensating Mn acceptors. It is a well-established fact that the ferromagnetic state of (GaMn)As can be stabilized via post growth annealing. Nevertheless, in general, the annealed (GaMn)As layers do not remain useful for further epitaxial overgrowth that might be included in multilayer structure. We present a summary of our investigations regarding the synchrotron-based characterization of (GaMn)As layers grown via molecular beam epitaxy carried out at the Swedish National Facility of Synchrotron Radiation-the MAX-lab aiming at the reduction of the density of Mn interstitial and increase in the content of Mn.
Avdelning/ar
Publiceringsår
2012
Språk
Engelska
Sidor
380-384
Publikation/Tidskrift/Serie
Advanced Materials Research
Volym
463-464
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
Trans Tech Publications
Ämne
- Physical Sciences
- Natural Sciences
Nyckelord
- (Ga
- Mn)As
- synchrotron-based characterozation
- diluted magnetic semiconductors
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1022-6680