Parametric Resonance of Magnetization Excited by Electric Field

Nano Lett. 2017 Jan 11;17(1):572-577. doi: 10.1021/acs.nanolett.6b04725. Epub 2016 Dec 23.


Manipulation of magnetization by electric field is a central goal of spintronics because it enables energy-efficient operation of spin-based devices. Spin wave devices are promising candidates for low-power information processing, but a method for energy-efficient excitation of short-wavelength spin waves has been lacking. Here we show that spin waves in nanoscale magnetic tunnel junctions can be generated via parametric resonance induced by electric field. Parametric excitation of magnetization is a versatile method of short-wavelength spin wave generation, and thus, our results pave the way toward energy-efficient nanomagnonic devices.

Keywords: Parametric resonance; magnetic tunnel junction; spin waves; voltage-controlled magnetic anisotropy.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Letter