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

• URL: http://arxiv.org/abs/2512.01158v1
• Date: Mon, 01 Dec 2025 00:32:38 GMT
• Title: Spatial structure and magnetism of a spin-orbit entangled spin-1 coherent spin center: the manganese neutral acceptor in a III-V semiconductor
• Authors: Julian Zanon, Michael E. Flatté,
• Abstract summary: A Mn dopant in a III-V semiconductor produces a highly-entangled, coherent triplet ground state.<n>Spin-correlated circulating currents associated with the dopant yield remarkably large magnetic fringe fields.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A 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 $\sim$1$\,μ$T at distances of $\sim 10$~nm from Mn in GaAs, potentially detectable by NV-diamond magnetometry while the dopant spin coherently precesses.

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