Tunable laser spectroscopy of spin injection in ZnMnSe/ZnCdSe quantum structures
2002 (English)In: Applied Physics Letters, ISSN 0003-6951, Vol. 81, no 12, 2196- p.Article in journal (Refereed) Published
Magneto-optical spectroscopy in combination with tunable laser excitation is employed to study exciton spin alignment and injection in ZnMnSe/ZnCdSe quantum structures. This approach enables us to selectively create preferred spin orientation and to separately monitor subsequent spin injection from individual spin states, thus shedding light on a possible source of spin loss. It is shown that the limited spin polarization in a nonmagnetic quantum well due to spin injection from a ZnMnSe-based diluted magnetic semiconductor (DMS) is not caused by a limited degree of spin alignment in the DMS, which is in fact complete, but rather occurs during subsequent processes.
Place, publisher, year, edition, pages
2002. Vol. 81, no 12, 2196- p.
IdentifiersURN: urn:nbn:se:liu:diva-45078DOI: 10.1063/1.1508162Local ID: 79594OAI: oai:DiVA.org:liu-45078DiVA: diva2:265940