Quantal phase control in nano-scale spin structures

  • 2.2 Quantum sensing(Quantum metrology/Sensing/Imaging, Optical lattice clocks)
  • 2.3 Quantum materials(Topological materials/Thermoelectric devices/Functional materials)
  • 2.5 Quantum wiring/Quantum electronics/Electronics for Quantum Information
Naoto Nagaosa
Graduate School of Engineering
Based on the physical principle that the electrons in magnets are subject to the emergent electromagnetic field (EEMF) associated with non-colinear spins, we manipulate and control the dynamics of electrons using this EEMF in the range of 100-1000 tesla in the nanometer and nanosecond scale.
Quantal phase and emergent magnetic field associated with the spin structure
Emergent inductor in which the coil structure is replaced by a helical spin structure.

Related links

Research collaborators

Yoshinori Tokura
Fumitaka Kagawa

Related publications

1. Controlled transformation of skyrmions and antiskyrmions in a non-centrosymmetric magnet Licong Peng et al., Nature Nanotechnology, 15(3) 181 (2020).
2. Emergent inductor by spiral magnets Naoto Nagaosa, Japanese J. Appl. Phys., 58(12), 120909 (2019).


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