Physical Review Letters -- September 11, 2000 -- Volume 85, Issue 11 pp. 2384-2387
The phase diagram of diluted magnetic semiconductor quantum wells is investigated. The interaction between the carriers in the hole gas can lead to first-order ferromagnetic transitions, which remain abrupt in applied fields. These transitions can be induced by magnetic fields or, in double-layer systems, by electric fields. We make a number of precise experimental predictions for observing these first-order phase transitions.
KeyWords : semiconductor quantum wells; magnetic semiconductors; phase diagrams; phase transformations; electric field effects; gallium arsenide; manganese compounds
Abstract Full Text: [ PDF (89 kB) ] Additional Information