Emergent Inductance from Chiral Orbital Currents in a Bulk Ferrimagnet

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, Mn3Si2Te6 hosts chiral orbital currents (COC) that circulate within the crystal lattice and give rise to collective electronic behavior [1]. 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 millihenry 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.

arXiv commentTo be published in Physical Review Letters; thorough thermal diagnostics addressing Joule heating in attached Supplemental Material

References in corpus (18)

• Discovery of unconventional chiral charge order in kagome superconductor KV3Sb5
• Discovery of charge density wave in a correlated kagome lattice antiferromagnet
• Complex charge density waves at Van Hove singularity on hexagonal lattices: Haldane-model phase diagram and potential realization in kagome metals ${\text{AV}}_3{\text{Sb}}_5$
• Imaging orbital ferromagnetism in a moiré Chern insulator
• Evidence of an odd-parity hidden order in a spin-orbit coupled correlated iridate
• Magnetic order and interactions in ferrimagnetic Mn3Si2Te6
• Control of chiral orbital currents in a colossal magnetoresistance material
• Emergent electromagnetic induction beyond room temperature
• Strange electrical transport: Colossal magnetoresistance via avoiding fully polarized magnetization in ferrimagnetic insulator Mn3Si2Te6
• Critical behavior and magnetocaloric effect in Mn${}_3$Si${}_2$Te${}_6$
• Polaronic transport and thermoelectricity in Mn${}_3$Si${}_2$Te${}_6$ single crystals
• Electrical Control of Structural and Physical Properties via Strong Spin-Orbit Interactions in Sr2IrO4
• Electromagnetic response in spiral magnets and emergent inductance
• Magnetic Structure and Spin Fluctuations in Colossal Magnetoresistance Ferrimagnet Mn3Si2Te6
• Bond Directional Anapole Order in a Spin-Orbit Coupled Mott Insulator Sr${}_2$(Ir${}_{1-x}$Rh${}_x$)O${}_4$
• Covalency, correlations, and inter-layer interactions governing the magnetic and electronic structure of Mn${}_3$Si${}_2$Te${}_6$
• Current-sensitive Hall effect in a chiral-orbital-current state
• Anapole, chiral and orbital states in Mn3Si2Te6