Experimental realization of a non-magnetic one-way spin switch
arXiv:1902.06321 · doi:10.1038/s41467-019-11210-z
Abstract
Controlling magnetism through non-magnetic means is highly desirable for future electronic devices, as such means typically have ultra-low power requirements and can provide coherent control. In recent years, great experimental progress has been made in the field of electrical manipulation of magnetism in numerous material systems. These studies generally do not consider the directionality of the applied non-magnetic potentials and/or magnetism switching. Here, we theoretically conceive and experimentally demonstrate a non-magnetic one-way spin switch device using a spin-orbit coupled Bose-Einstein condensate subjected to a moving spin-independent dipole potential. The physical foundation of this unidirectional device is based on the breakdown of Galilean invariance in the presence of spin-orbit coupling. Such a one-way spin switch opens an avenue for designing novel quantum devices with unique functionalities and may facilitate further experimental investigations of other one-way spintronic and atomtronic devices.
arXiv commentThis manuscript was submitted for publication on 11/18/2018. Main text: 6 pages, 5 figures. Supplemental Materials: 5 pages, 5 figures
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Cited by in corpus (11)
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- Enhanced transport of spin-orbit coupled Bose gases in disordered potentials
- Quantum phases in spin-orbit-coupled Floquet spinor Bose gases
- Spin-orbit coupled spin-1 Bose-Einstein condensate flow past an obstacle in the presence of a Zeeman field
- Detection of roton and phonon excitations in a spin-orbit coupled Bose-Einstein condensate with a moving barrier
- Bound states of spin-orbit coupled cold atoms in a Dirac delta-function potential
- Unidirectional spin transport of a spin-orbit-coupled atomic matter wave using a moving Dirac -potential well
- Fast transport and splitting of spin-orbit-coupled spin-1 Bose-Einstein Condensates
- Datta-Das transistor for atomtronic circuits using artificial gauge fields
- Tunable nonlinear Landau-Zener tunnelings in a spin-orbit-coupled spinor Bose-Einstein condensate
- Spin-dependent localization of spin-orbit and Rabi-coupled Bose-Einstein condensates in a random potential