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This model is highly versatile and sufficient for our purposes, as it allows us to modify both the band gap and the Fermi velocity

Edge Magnetic Field from Spin Accumulation, Electron Current The simplest Hamiltonian representing a QSH insulator can be written in continuous form as H(kx, ky) = A(k)I2 + d(k)

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Magnetic field Characterization of edge currents in quantum spin Hall insulators

cond-mat.mes-hall · 2024-11-18 · conditional · novelty 5.0

Using linear response and Biot-Savart calculations, the authors show that the spin-accumulation magnetic field of a QSH edge decays as 1/d^2, while the current field decays as 1/d, and estimate where NV magnetometry could resolve the spin-accumulation signal.

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  • Magnetic field Characterization of edge currents in quantum spin Hall insulators cond-mat.mes-hall · 2024-11-18 · conditional · none · ref 2

    Using linear response and Biot-Savart calculations, the authors show that the spin-accumulation magnetic field of a QSH edge decays as 1/d^2, while the current field decays as 1/d, and estimate where NV magnetometry could resolve the spin-accumulation signal.