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Spatial structure and magnetism of a spin-orbit entangled spin-1 coherent spin center: the manganese neutral acceptor in a III-V semiconductor
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Spatial structure and magnetism of a spin-orbit entangled spin-1 coherent spin center: the manganese neutral acceptor in a III-V semiconductor

Julian Zanon and Michael E Flatté
ArXiv.org
Cornell University
12/01/2025
DOI: 10.48550/arxiv.2512.01158
url
https://doi.org/10.48550/arxiv.2512.01158View
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

Mn dopant in a III-V semiconductor produces a highly-entangled, coherent triplet ground state not fully captured by single-determinant theories of electron structure. We directly construct an analytic form for its ground-state wavefunction, finding surprising spin-charge correlations not revealed by semiclassical calculations. Spin-correlated circulating currents associated with the dopant yield remarkably large magnetic fringe fields of ∼1 μT at distances of ∼ 10 nm from Mn in GaAs, potentially detectable by NV-diamond magnetometry while the dopant spin coherently precesses.
Physics - Mesoscale and Nanoscale Physics Physics - Quantum Physics

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