Observation of polaron dynamics in magnetic quantum wells

D. D. Awschalom, M. R. Freeman, N. Samarth, H. Luo, J. K. Furdyna

Research output: Contribution to journalArticle

86 Scopus citations

Abstract

Femtosecond spectroscopic measurements of optically induced magnetization are performed on new type-II ZnTe/Cd1-xMnxSe diluted-magnetic-semiconductor heterostructures consisting of magnetic quantum wells confined by nonmagnetic barrier layers. The formation and evolution of electron-based bound magnetic polarons in the wells is observed through static and time-domain experiments. Energy-dependent magnetic spin dynamics on ultrashort time scales are seen to vary dramatically with the degree of electronic confinement.

Original languageEnglish (US)
Pages (from-to)1212-1215
Number of pages4
JournalPhysical Review Letters
Volume66
Issue number9
DOIs
StatePublished - Jan 1 1991

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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