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Influence of nitrogen-cluster states on the gyromagnetic factor of electrons inGaAs1−xNx
- Source :
- Physical Review B. 74
- Publication Year :
- 2006
- Publisher :
- American Physical Society (APS), 2006.
-
Abstract
- The effective gyromagnetic factor of electrons, ge , has been determined by Zeeman splitting measurements in a large number of GaAs1−xNx /GaAs x 0.7% samples. Upon N incorporation, ge * shows first a sign reversal with respect to that of GaAs, then increases abruptly for a nitrogen concentration of order of 0.04%, and finally displays a nonmonotonic dependence on composition for higher x values. This behavior is well reproduced by a modified k·p model taking into account a nonmonotonic loss of character of the conduction band minimum due to multiple crossings between the redshifting conduction band edge and N-cluster states.
Details
- ISSN :
- 1550235X and 10980121
- Volume :
- 74
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi...........5c71ad63341ac11b3d7d73e131a04bc6