FERROMAGNETISM IN 2D EXCITON CONDENSATES

Authors
FERNANDEZROSSIER J TEJEDOR C
Citation
J. Fernandezrossier et C. Tejedor, FERROMAGNETISM IN 2D EXCITON CONDENSATES, Physica status solidi. a, Applied research, 164(1), 1997, pp. 343-346
Citations number
9
Journal title
Physica status solidi. a, Applied research → ACNP
ISSN journal
00318965
Volume
164
Issue
1
Year of publication
1997
Pages
343 - 346
Database
ISI
SICI code
0031-8965(1997)164:1<343:FI2EC>2.0.ZU;2-X
Abstract
We present a generalized BCS analysis of a liquid of excitons having t wo different spin orientations. Both the energy and the chemical poten tials of this system depend strongly on both the spin polarization P a nd total density n. When electrons and holes are located in two differ ent planes separated by a distance d, the liquid can be either totally spin polarized for d > d(cr)(n) or spin unpolarized (d < d(cr)(n)). T he phase coherence induced by exciton condensation is discussed.