Strain Engineering for Transition Metal Defects in SiC

Fuente: arXiv
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Autori principali: Tissot, Benedikt, Udvarhelyi, Péter, Gali, Adam, Burkard, Guido
Natura: Preprint
Pubblicazione: 2023
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author Tissot, Benedikt
Udvarhelyi, Péter
Gali, Adam
Burkard, Guido
author_facet Tissot, Benedikt
Udvarhelyi, Péter
Gali, Adam
Burkard, Guido
contents Transition metal (TM) defects in silicon carbide (SiC) are a promising platform for applications in quantum technology as some of these defects, e.g. vanadium (V), allow for optical emission in one of the telecom bands. For other defects it was shown that straining the crystal can lead to beneficial effects regarding the emission properties. Motivated by this, we theoretically study the main effects of strain on the electronic level structure and optical electric-dipole transitions of the V defect in SiC. In particular we show how strain can be used to engineer the g-tensor, electronic selection rules, and the hyperfine interaction. Based on these insights we discuss optical Lambda systems and a path forward to initializing the quantum state of strained TM defects in SiC.
format Preprint
id arxiv_https___arxiv_org_abs_2310_19719
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Strain Engineering for Transition Metal Defects in SiC
Tissot, Benedikt
Udvarhelyi, Péter
Gali, Adam
Burkard, Guido
Mesoscale and Nanoscale Physics
Transition metal (TM) defects in silicon carbide (SiC) are a promising platform for applications in quantum technology as some of these defects, e.g. vanadium (V), allow for optical emission in one of the telecom bands. For other defects it was shown that straining the crystal can lead to beneficial effects regarding the emission properties. Motivated by this, we theoretically study the main effects of strain on the electronic level structure and optical electric-dipole transitions of the V defect in SiC. In particular we show how strain can be used to engineer the g-tensor, electronic selection rules, and the hyperfine interaction. Based on these insights we discuss optical Lambda systems and a path forward to initializing the quantum state of strained TM defects in SiC.
title Strain Engineering for Transition Metal Defects in SiC
topic Mesoscale and Nanoscale Physics
url https://arxiv.org/abs/2310.19719