Multiple-mode excitation in spin-transfer nanocontacts with dynamic polarizer

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • N. Wang
  • X. L. Wang
  • W. Qin
  • S. H. Yeung
  • D. T K Kwok
  • H. F. Wong
  • Q. Xue
  • C. W. Leung

Detail(s)

Original languageEnglish
Article number242506
Journal / PublicationApplied Physics Letters
Volume98
Issue number24
Publication statusPublished - 13 Jun 2011

Abstract

We report our study on the emission response of a magnetic nanocontact with dynamic polarizer in perpendicular magnetic field. In this configuration three modes are accessible, two of which correspond to the precessional motion of a vortex in one of the two ferromagnetic layers with the other working as a static polarizer. At high currents a third mode can be observed that is ascribed to the simultaneous precession of two vortices, one in each layer, with the other layer working as a dynamic polarizer. © 2011 American Institute of Physics.

Citation Format(s)

Multiple-mode excitation in spin-transfer nanocontacts with dynamic polarizer. / Wang, N.; Wang, X. L. ; Qin, W. et al.
In: Applied Physics Letters, Vol. 98, No. 24, 242506, 13.06.2011.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review