Nuclear-Electron Hyperfine Coupling of the Shallow States Associated with Vacancies in Gallium Nitride

Joseph Sink; Michael E Flatté

doi:10.48550/arxiv.2605.26053

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Nuclear-Electron Hyperfine Coupling of the Shallow States Associated with Vacancies in Gallium Nitride

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Nuclear-Electron Hyperfine Coupling of the Shallow States Associated with Vacancies in Gallium Nitride

Joseph Sink and Michael E Flatté

ArXiv.org

Cornell University

05/25/2026

DOI: 10.48550/arxiv.2605.26053

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Preprint (Author's original) This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

We use multiband real space Green's functions computed using open-boundary conditions for clean GaN to exactly solve the potential-scattering Dyson equation to obtain the electronic structure of single nitrogen and gallium vacancies. From these vacancy solutions, we compute the local density of states as well as the Fermi contact and anisotropic contributions to the hyperfine field in the vicinity of the defect. These quantities directly affect electrically-detected magnetic resonance signals, which can be used to identify these defects when present in GaN devices.

Physics - Materials Science

Details

Title: Subtitle: Nuclear-Electron Hyperfine Coupling of the Shallow States Associated with Vacancies in Gallium Nitride
Creators: Joseph Sink
Michael E Flatté
Resource Type: Preprint
Publication Details: ArXiv.org
DOI: 10.48550/arxiv.2605.26053
ISSN: 2331-8422
Publisher: Cornell University; Ithaca, New York
Language: English
Date posted: 05/25/2026
Academic Unit: Electrical and Computer Engineering; Physics and Astronomy
Record Identifier: 9985166832002771

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