Exciton unbinding in a confined fermi sea

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


An exciton is predicted to unbind abruptly in a fermion gas which exceeds a critical density. The transition should be observable in terms of a sudden red shift of a few meV in the photoluminescence of high-mobility n-type modulation-doped GaAs/AlxGa1-xAs quantum wells at electron densities of about 1011cm-2. Slightly above the critical density, the application of a magnetic field causes a reentrant exciton binding/unbinding phenomenon.

Original languageEnglish
Pages (from-to)163-166
Number of pages4
JournalSolid State Communications
Issue number2
Publication statusPublished - 1991 Apr


Dive into the research topics of 'Exciton unbinding in a confined fermi sea'. Together they form a unique fingerprint.

Cite this