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Title: Large amplitude spin torque vortex oscillations at zero external field using a perpendicular spin polarizer

Abstract

We investigate the microwave response of a spin transfer vortex based oscillator in a magnetic tunnel junction with an in-plane reference layer combined with a spin valve with an out-of-plane magnetization spin polarizing layer. The main advantage of this perpendicular spin polarizer is to induce a large spin transfer force even at zero magnetic field, thus leading to a record emitted power (up to 0.6 μW) associated to a very narrow spectral linewidth of a few hundreds of kHz. The characteristics of this hybrid vortex based spin transfer nano-oscillator obtained at zero field and room temperature are of great importance for applications based on rf spintronic devices as integrated and tunable microwave source and/or microwave detector.

Authors:
; ; ; ; ; ;  [1];  [1]; ; ; ;  [2]
  1. Unité Mixte de Physique CNRS/Thales and Université Paris Sud 11, 1 Ave. A. Fresnel, 91767 Palaiseau (France)
  2. National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan)
Publication Date:
OSTI Identifier:
22311084
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AMPLITUDES; EMISSION; LAYERS; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MAGNETIZATION; MICROWAVE RADIATION; OSCILLATIONS; OSCILLATORS; SPIN ORIENTATION; TORQUE; TUNNEL DIODES; TUNNEL EFFECT; VORTICES

Citation Formats

Dussaux, A., Rache Salles, B., Jenkins, A. S., Bortolotti, P., Grollier, J., Cros, V., Fert, A., Grimaldi, E., E-mail: eva.grimaldi@thalesgroup.com, CNES, 1 Avenue Edouard Belin, 31400 Toulouse, Khvalkovskiy, A. V., A.M. Prokhorov General Physics Institute of RAS, Vavilova Str. 38, 119991 Moscow, Kubota, H., Fukushima, A., Yakushiji, K., and Yuasa, S. Large amplitude spin torque vortex oscillations at zero external field using a perpendicular spin polarizer. United States: N. p., 2014. Web. doi:10.1063/1.4885537.
Dussaux, A., Rache Salles, B., Jenkins, A. S., Bortolotti, P., Grollier, J., Cros, V., Fert, A., Grimaldi, E., E-mail: eva.grimaldi@thalesgroup.com, CNES, 1 Avenue Edouard Belin, 31400 Toulouse, Khvalkovskiy, A. V., A.M. Prokhorov General Physics Institute of RAS, Vavilova Str. 38, 119991 Moscow, Kubota, H., Fukushima, A., Yakushiji, K., & Yuasa, S. Large amplitude spin torque vortex oscillations at zero external field using a perpendicular spin polarizer. United States. https://doi.org/10.1063/1.4885537
Dussaux, A., Rache Salles, B., Jenkins, A. S., Bortolotti, P., Grollier, J., Cros, V., Fert, A., Grimaldi, E., E-mail: eva.grimaldi@thalesgroup.com, CNES, 1 Avenue Edouard Belin, 31400 Toulouse, Khvalkovskiy, A. V., A.M. Prokhorov General Physics Institute of RAS, Vavilova Str. 38, 119991 Moscow, Kubota, H., Fukushima, A., Yakushiji, K., and Yuasa, S. 2014. "Large amplitude spin torque vortex oscillations at zero external field using a perpendicular spin polarizer". United States. https://doi.org/10.1063/1.4885537.
@article{osti_22311084,
title = {Large amplitude spin torque vortex oscillations at zero external field using a perpendicular spin polarizer},
author = {Dussaux, A. and Rache Salles, B. and Jenkins, A. S. and Bortolotti, P. and Grollier, J. and Cros, V. and Fert, A. and Grimaldi, E., E-mail: eva.grimaldi@thalesgroup.com and CNES, 1 Avenue Edouard Belin, 31400 Toulouse and Khvalkovskiy, A. V. and A.M. Prokhorov General Physics Institute of RAS, Vavilova Str. 38, 119991 Moscow and Kubota, H. and Fukushima, A. and Yakushiji, K. and Yuasa, S.},
abstractNote = {We investigate the microwave response of a spin transfer vortex based oscillator in a magnetic tunnel junction with an in-plane reference layer combined with a spin valve with an out-of-plane magnetization spin polarizing layer. The main advantage of this perpendicular spin polarizer is to induce a large spin transfer force even at zero magnetic field, thus leading to a record emitted power (up to 0.6 μW) associated to a very narrow spectral linewidth of a few hundreds of kHz. The characteristics of this hybrid vortex based spin transfer nano-oscillator obtained at zero field and room temperature are of great importance for applications based on rf spintronic devices as integrated and tunable microwave source and/or microwave detector.},
doi = {10.1063/1.4885537},
url = {https://www.osti.gov/biblio/22311084}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 2,
volume = 105,
place = {United States},
year = {Mon Jul 14 00:00:00 EDT 2014},
month = {Mon Jul 14 00:00:00 EDT 2014}
}