2021
DOI: 10.1088/1361-648x/ac296e
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Generation of circular spin current in an AB magnetic ring with vanishing net magnetization: a new prescription

Abstract: In this work we report for the first time the appearance of non-decaying circular spin current in a magnetic ring with vanishing net magnetization, even in absence of any spin chirality. Breaking the symmetry in hopping integrals we can misalign up and down spin electronic energy levels which yields a net spin current in the magnetic quantum ring, threaded by an Aharonov–Bohm flux. Along with spin current, a net charge current also appears, and we compute both these currents using the second quantized approach… Show more

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