Spatiotemporal near-field spin microscopy in digital magnetic heterostructures

V. Nikitin, P. A. Crowell, Nitin Samarth, D. D. Awschalom

Research output: Contribution to journalConference article

Abstract

A femtosecond-resolved low temperature near-field scanning optical microscope was used to monitor the spatiotemporal evolution of excitonic spins in single 120 angstroms ZnSe/ZnCdSe semiconductor quantum wells with a systematic distribution of magnetic Mn ions, and which were laterally patterned with a beam of Ga ions. Polarization resolved photoluminescence images revealed a spin dependent energy structure wherein the Zeeman splitting is diminished in implanted regions, and carrier and spin behavior directly distinguishable by sharp differences in intensity and polarization profiles. Time resolved measurements suggest that exciton diffusion acquires a spin dependent component in the presence of a magnetic field.

Original languageEnglish (US)
Pages (from-to)172-173
Number of pages2
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
Volume1
StatePublished - Dec 1 1996
EventProceedings of the 1996 9th Annual Meeting of IEEE Lasers and Electro-Optics Society, LEOS'96. Part 1 (of 2) - Boston, MA, USA
Duration: Nov 18 1996Nov 19 1996

Fingerprint

Heterojunctions
Microscopic examination
Ions
Polarization
Time measurement
Excitons
Semiconductor quantum wells
Photoluminescence
Microscopes
Magnetic fields
Scanning
Temperature
LDS 751

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

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abstract = "A femtosecond-resolved low temperature near-field scanning optical microscope was used to monitor the spatiotemporal evolution of excitonic spins in single 120 angstroms ZnSe/ZnCdSe semiconductor quantum wells with a systematic distribution of magnetic Mn ions, and which were laterally patterned with a beam of Ga ions. Polarization resolved photoluminescence images revealed a spin dependent energy structure wherein the Zeeman splitting is diminished in implanted regions, and carrier and spin behavior directly distinguishable by sharp differences in intensity and polarization profiles. Time resolved measurements suggest that exciton diffusion acquires a spin dependent component in the presence of a magnetic field.",
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Spatiotemporal near-field spin microscopy in digital magnetic heterostructures. / Nikitin, V.; Crowell, P. A.; Samarth, Nitin; Awschalom, D. D.

In: Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS, Vol. 1, 01.12.1996, p. 172-173.

Research output: Contribution to journalConference article

TY - JOUR

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AU - Nikitin, V.

AU - Crowell, P. A.

AU - Samarth, Nitin

AU - Awschalom, D. D.

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