Femtosecond spin spectroscopy in magnetically tunable heterostructures

D. A. Tulchinsky, J. J. Baumberg, D. D. Awschalom, Nitin Samarth, H. Luo, J. K. Furdyna

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Spin-flip scattering of oriented carriers between Zeeman-split quantum-confined states is observed directly by femtosecond-resolved photoluminescence spectroscopy in magnetically coupled double quantum wells. Polarization measurements reveal that the spin dynamics are determined by the initial carrier energy and spin orientation with respect to the Zeeman separation of the levels. Studies as a function of applied field and barrier thickness show that spin equilibration is remarkably sensitive to the magnetic environment.

Original languageEnglish (US)
Pages (from-to)10851-10855
Number of pages5
JournalPhysical Review B
Volume50
Issue number15
DOIs
StatePublished - Jan 1 1994

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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