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

N. Wang; X. L. Wang; W. Qin; S. H. Yeung; D. T.K. Kwok; H. F. Wong; Q. Xue; P. K. Chu; Chi Wah Leung; A. Ruotolo

doi:10.1063/1.3600328

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

N. Wang
, X. L. Wang
, W. Qin
, S. H. Yeung
, D. T.K. Kwok
, H. F. Wong
, Q. Xue
, P. K. Chu
, Chi Wah Leung
, A. Ruotolo

Research output: Journal article publication › Journal article › Academic research › peer-review

7 Citations (Scopus)

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.

Original language	English
Article number	242506
Journal	Applied Physics Letters
Volume	98
Issue number	24
DOIs	https://doi.org/10.1063/1.3600328
Publication status	Published - 13 Jun 2011

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

More information

10.1063/1.3600328

http://hdl.handle.net/10397/4421

Cite this

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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.",

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AU - Wang, X. L.

AU - Qin, W.

AU - Yeung, S. H.

AU - Kwok, D. T.K.

AU - Wong, H. F.

AU - Xue, Q.

AU - Chu, P. K.

AU - Leung, Chi Wah

AU - Ruotolo, A.

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N2 - 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.

AB - 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.

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

Abstract

ASJC Scopus subject areas

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