Bound magnetic polarons below T=1 K

E. D. Isaacs*, D. Heiman, M. J. Graf, B. B. Goldberg, R. Kershaw, D. Ridgley, K. Dwight, A. Wold, J. Furdyna, J. S. Brooks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Large bound magnetic polarons are observed at temperatures down to T=0.13 K (dilution re- frigerator) for donor electrons in Cd1-xMnxSe, using spin-flip Raman scattering. Variations of the electron Zeeman energy with temperature, in zero magnetic field, clearly demonstrate the cooperative s-d exchange of the polaron, quantitatively confirming the theoretical model. The increase in polaron energy below 2 K arises from a dramatic increase in the magnetic susceptibility (eightfold), which we model by considering higher-neighbor Mn2+-Mn2+ interactions.

Original languageEnglish (US)
Pages (from-to)7108-7111
Number of pages4
JournalPhysical Review B
Volume37
Issue number12
DOIs
StatePublished - 1988

ASJC Scopus subject areas

  • Condensed Matter Physics

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