title: Phase diagram of diluted magnetic semiconductor quantum wells
abstract: 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.
authors.affiliation: Instituto de Ciencia de Materiales (CSIC), Cantoblanco, 28049 Madrid, Spain.
authors.initials: L
authors.lastname: Brey
authors.initials: F
authors.lastname: Guinea