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    Emergent Inductance from Chiral Orbital Currents in a Bulk Ferrimagnet

    Gang Cao1,2,*, Hengdi Zhao1, Yu Zhang1, Alex Fix1, Tristan R. Cao1, Dhruva Ananth1, Yifei Ni1, Gabriel Schebel1, Rahul Nandkishore1,3 et al.

    Itamar Kimchi4, Hua Chen5, Feng Ye6, and Lance E. DeLong7

    • *Contact author: gang.cao@colorado.edu

    Phys. Rev. Lett. 135, 146504 – Published 1 October, 2025

    DOI: https://doi.org/10.1103/r22l-y2rr

    Abstract

    We report the discovery of a new form of inductance in the bulk ferrimagnet Mn3Si2Te6, which features strong spin-orbit coupling, large magnetic anisotropy, and pronounced magnetoelastic interactions. Below its Curie temperature (TC≈78  K), Mn3Si2Te6 hosts chiral orbital currents (COC) that circulate within the crystal lattice and give rise to collective electronic behavior [Control of chiral orbital currents in a colossal magnetoresistance material, Nature (London) 611, 467 (2022).]. By applying a magnetic field along the hard c axis and driving the system with low-frequency currents, we uncover a giant inductive response up to millhenry scale, originating from first-order reconfigurations of COC domains. These domains act as coherent mesoscopic inductive elements that resist reversal upon current reduction, producing a large electromotive force and sharply increasing voltage. This emergent inductance defies classical models, occurs without superconductivity or engineered nanostructures, and opens a new frontier in orbital-based quantum functionality and device concepts.

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