Relaxation of hole spins in quantum dots via two-phonon processes

Mircea Trif; Pascal Simon; Daniel Loss

doi:10.1103/PhysRevLett.103.106601

Relaxation of hole spins in quantum dots via two-phonon processes

Mircea Trif^*
, Pascal Simon
, Daniel Loss

^*Corresponding author for this work

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

65 Scopus citations

Abstract

We investigate theoretically spin relaxation in heavy-hole quantum dots in low external magnetic fields. We demonstrate that two-phonon processes and spin-orbit interaction are experimentally relevant and provide an explanation for the recently observed saturation of the spin-relaxation rate in heavy-hole quantum dots with vanishing magnetic fields. We propose further experiments to identify the relevant spin-relaxation mechanisms in low magnetic fields.

Original language	English
Article number	106601
Journal	Physical Review Letters
Volume	103
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.103.106601
State	Published - 1 Sep 2009
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.103.106601

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title = "Relaxation of hole spins in quantum dots via two-phonon processes",

abstract = "We investigate theoretically spin relaxation in heavy-hole quantum dots in low external magnetic fields. We demonstrate that two-phonon processes and spin-orbit interaction are experimentally relevant and provide an explanation for the recently observed saturation of the spin-relaxation rate in heavy-hole quantum dots with vanishing magnetic fields. We propose further experiments to identify the relevant spin-relaxation mechanisms in low magnetic fields.",

author = "Mircea Trif and Pascal Simon and Daniel Loss",

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doi = "10.1103/PhysRevLett.103.106601",

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AU - Simon, Pascal

AU - Loss, Daniel

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N2 - We investigate theoretically spin relaxation in heavy-hole quantum dots in low external magnetic fields. We demonstrate that two-phonon processes and spin-orbit interaction are experimentally relevant and provide an explanation for the recently observed saturation of the spin-relaxation rate in heavy-hole quantum dots with vanishing magnetic fields. We propose further experiments to identify the relevant spin-relaxation mechanisms in low magnetic fields.

AB - We investigate theoretically spin relaxation in heavy-hole quantum dots in low external magnetic fields. We demonstrate that two-phonon processes and spin-orbit interaction are experimentally relevant and provide an explanation for the recently observed saturation of the spin-relaxation rate in heavy-hole quantum dots with vanishing magnetic fields. We propose further experiments to identify the relevant spin-relaxation mechanisms in low magnetic fields.

UR - https://www.scopus.com/pages/publications/69549084336

U2 - 10.1103/PhysRevLett.103.106601

DO - 10.1103/PhysRevLett.103.106601

M3 - Article

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 106601

ER -

Relaxation of hole spins in quantum dots via two-phonon processes

Abstract

ASJC Scopus subject areas

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