Spin relaxation in CdTe quantum dots

Ye Chen; Tsuyoshi Okuno; Yasuaki Masumoto; Yoshikazu Terai; Shinji Kuroda; Koki Takita

doi:10.1103/PhysRevB.71.033314

Spin relaxation in CdTe quantum dots

Ye Chen^*
, Tsuyoshi Okuno
, Yasuaki Masumoto
, Yoshikazu Terai
, Shinji Kuroda
, Koki Takita

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We have measured photoluminescence (PL) spectra and time-resolved PL in CdTe quantum dots under the longitudinal magnetic field up to 10 T. Circular polarization of PL increases with increasing magnetic field, while its linear polarization remains zero under linearly polarized excitation. This behavior cannot be explained by the anisotropic exchange interaction of excitons. Time-resolved PL measurements clarified that this behavior is caused by the suppression of spin relaxation induced by the longitudinal magnetic field. We believe that this behavior is related to the hyperfine interaction of electron spin with magnetic momenta of lattice nuclei.

Original language	English
Article number	033314
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	71
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevB.71.033314
State	Published - Jan 2005
Externally published	Yes

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title = "Spin relaxation in CdTe quantum dots",

abstract = "We have measured photoluminescence (PL) spectra and time-resolved PL in CdTe quantum dots under the longitudinal magnetic field up to 10 T. Circular polarization of PL increases with increasing magnetic field, while its linear polarization remains zero under linearly polarized excitation. This behavior cannot be explained by the anisotropic exchange interaction of excitons. Time-resolved PL measurements clarified that this behavior is caused by the suppression of spin relaxation induced by the longitudinal magnetic field. We believe that this behavior is related to the hyperfine interaction of electron spin with magnetic momenta of lattice nuclei.",

author = "Ye Chen and Tsuyoshi Okuno and Yasuaki Masumoto and Yoshikazu Terai and Shinji Kuroda and Koki Takita",

year = "2005",

month = jan,

doi = "10.1103/PhysRevB.71.033314",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

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T1 - Spin relaxation in CdTe quantum dots

AU - Chen, Ye

AU - Okuno, Tsuyoshi

AU - Masumoto, Yasuaki

AU - Terai, Yoshikazu

AU - Kuroda, Shinji

AU - Takita, Koki

PY - 2005/1

Y1 - 2005/1

N2 - We have measured photoluminescence (PL) spectra and time-resolved PL in CdTe quantum dots under the longitudinal magnetic field up to 10 T. Circular polarization of PL increases with increasing magnetic field, while its linear polarization remains zero under linearly polarized excitation. This behavior cannot be explained by the anisotropic exchange interaction of excitons. Time-resolved PL measurements clarified that this behavior is caused by the suppression of spin relaxation induced by the longitudinal magnetic field. We believe that this behavior is related to the hyperfine interaction of electron spin with magnetic momenta of lattice nuclei.

AB - We have measured photoluminescence (PL) spectra and time-resolved PL in CdTe quantum dots under the longitudinal magnetic field up to 10 T. Circular polarization of PL increases with increasing magnetic field, while its linear polarization remains zero under linearly polarized excitation. This behavior cannot be explained by the anisotropic exchange interaction of excitons. Time-resolved PL measurements clarified that this behavior is caused by the suppression of spin relaxation induced by the longitudinal magnetic field. We believe that this behavior is related to the hyperfine interaction of electron spin with magnetic momenta of lattice nuclei.

UR - https://www.scopus.com/pages/publications/15444377314

U2 - 10.1103/PhysRevB.71.033314

DO - 10.1103/PhysRevB.71.033314

M3 - 文章

AN - SCOPUS:15444377314

SN - 1098-0121

VL - 71

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 3

M1 - 033314

ER -

Spin relaxation in CdTe quantum dots

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