Emergent electromagnetic induction beyond room temperature

Abstract

Emergent electromagnetic induction based on electrodynamics of noncollinear spin states may enable dramatic miniaturization of inductor elements widely used in electric circuits, yet many issues are to be solved toward application. One such problem is how to increase working temperature. We report the large emergent electromagnetic induction achieved around and above room temperature based on short-period ($\le$ 3 nm) spin-spiral states of a metallic helimagnet ${\mathrm{YMn}}_6{\mathrm{Sn}}_6$. The observed inductance value $L$ and its sign are observed to vary to a large extent, depending not only on the spin helix structure controlled by temperature and magnetic field but also on the current density. The present finding on room-temperature operation and possible sign control of $L$ may provide a new step toward realizing microscale quantum inductors.

arXiv comment19 pages, 6 figures

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• Quantum Interactions in Topological R166 Kagome Magnet
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• Doping control of magnetism and emergent electromagnetic induction in high-temperature helimagnets
• Square skyrmion crystal in centrosymmetric systems with locally inversion-asymmetric layers
• Phase degree of freedom and topology in multiple-$Q$ spin textures
• Helitronics for classical and unconventional computing
• Emergence of inductance and capacitance from topological electromagnetism
• Emergent inductance from spin fluctuations in strongly correlated magnets
• Energetic perspective on emergent inductance exhibited by magnetic textures in the pinned regime
• Reconsidering the nonlinear emergent inductance: time-varying Joule heating and its impact on the AC electrical response
• Thermoelectric effect of skyrmion crystal confined in a magnetic disk
• Symmetry of the emergent inductance tensor exhibited by magnetic textures
• Emergent electric field from magnetic resonances in a one-dimensional chiral magnet
• Emergent inductors in non-helical magnets
• Diverse Magnetic Phase Diagram and Anomalous Hall Effect in Antiferromagetic LuMn${}_6$Sn${}_6$
• Observation of anisotropic magneto-inductance effect
• Unraveling the dynamics of magnetization in topological insulator-ferromagnet heterostructures via spin-orbit torque
• Emergent impedance due to antiferromagnetic domain wall dynamics
• Emergent Inductance from Chiral Orbital Currents in a Bulk Ferrimagnet
• Inductance Meets Memory in the Quantum Magnet Mn3Si2Te6
• Evolution from Topological Dirac Metal to Flat-band-Induced Antiferromagnet in Layered KxNi4S2 (0<=x<=1)
• Helimagnetic Josephson diode effect
• Soliton penetration from edges in a monoaxial chiral magnet