Electric field controlled spin waveguide phase shifter in YIG

We propose a new type of a spin waveguide in yttrium iron garnet solely controlled by external electric fields. Spin waves are generated by microwave electric fields while the shift of the phase between spin waves is achieved by means of static electric fields. The phase shifter operation is based o...

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Bibliographic Details
Published inJournal of applied physics Vol. 124; no. 7
Main Authors Wang, Xi-guang, Chotorlishvili, L., Guo, Guang-hua, Berakdar, J.
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 21.08.2018
Subjects
Applied physics
Circuits
Electric fields
Electron spin
Electronic circuits
Magnons
Wave dispersion
Wave propagation
Yttrium
Yttrium-iron garnet
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Summary:We propose a new type of a spin waveguide in yttrium iron garnet solely controlled by external electric fields. Spin waves are generated by microwave electric fields while the shift of the phase between spin waves is achieved by means of static electric fields. The phase shifter operation is based on the magneto-electric coupling and effective Dzyaloshinskii Moriya interaction. The special geometry of the waveguide imposes certain asymmetry in the dispersion relationships of the spin waves. Depending on the propagation direction, the phases of the spin waves are shifted differently by the external electric field. The phase difference is entirely controlled by the driving electric fields. The proposed phase shifter can be easily incorporated into electronic circuits and in spin wave logical operations.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.5037958