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Title: Mode-hopping mechanism generating colored noise in a magnetic tunnel junction based spin torque oscillator

Abstract

The frequency noise spectrum of a magnetic tunnel junction (MTJ) based spin torque oscillator (STO) is examined where multiple modes and mode-hopping events are observed. The frequency noise spectrum is found to consist of both white noise and 1/f frequency noise. Here, we find a systematic and similar dependence of both white noise and 1/f frequency noise on bias current and the relative angle between the reference and free layers, which changes the effective damping and hence the mode-hopping behavior in this system. The frequency at which the 1/f frequency noise changes to white noise increases as the free layer is aligned away from the anti-parallel orientation w.r.t the reference layer. Lastly, these results indicate that the origin of 1/f frequency noise is related to mode-hopping which produces both white noise as well as 1/f frequency noise similar to the case of ring lasers.

Authors:
 [1];  [2];  [2];  [3];  [4];  [5]
+ Show Author Affiliations
  1. Indian Inst. of Technology (IIT), New Delhi (India)
  2. Univ. of Gothenburg (Sweden). Dept. of Physics
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  4. Univ. of Gothenburg (Sweden). Dept. of Physics; KTH Royal Inst. of Technology, Kista (Sweden). School of Information and Communication Technology (ICT)
  5. Indian Inst. of Technology (IIT), New Delhi (India); Univ. of Gothenburg (Sweden). Dept. of Physics
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
Swedish Foundation for Strategic Research (SSF); Swedish Research Council (VR); USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1357043
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 13; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; 1/f noise; Machinery noise; Linewidths; Thermal noise; Spectrum analyzers

Citation Formats

Sharma, Raghav, Dürrenfeld, P., Iacocca, E., Heinonen, O. G., Åkerman, J., and Muduli, P. K. Mode-hopping mechanism generating colored noise in a magnetic tunnel junction based spin torque oscillator. United States: N. p., 2014. Web. doi:10.1063/1.4896634.
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Sharma, Raghav, Dürrenfeld, P., Iacocca, E., Heinonen, O. G., Åkerman, J., & Muduli, P. K. Mode-hopping mechanism generating colored noise in a magnetic tunnel junction based spin torque oscillator. United States. https://doi.org/10.1063/1.4896634
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Sharma, Raghav, Dürrenfeld, P., Iacocca, E., Heinonen, O. G., Åkerman, J., and Muduli, P. K. Mon . "Mode-hopping mechanism generating colored noise in a magnetic tunnel junction based spin torque oscillator". United States. https://doi.org/10.1063/1.4896634. https://www.osti.gov/servlets/purl/1357043.
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@article{osti_1357043,
title = {Mode-hopping mechanism generating colored noise in a magnetic tunnel junction based spin torque oscillator},
author = {Sharma, Raghav and Dürrenfeld, P. and Iacocca, E. and Heinonen, O. G. and Åkerman, J. and Muduli, P. K.},
abstractNote = {The frequency noise spectrum of a magnetic tunnel junction (MTJ) based spin torque oscillator (STO) is examined where multiple modes and mode-hopping events are observed. The frequency noise spectrum is found to consist of both white noise and 1/f frequency noise. Here, we find a systematic and similar dependence of both white noise and 1/f frequency noise on bias current and the relative angle between the reference and free layers, which changes the effective damping and hence the mode-hopping behavior in this system. The frequency at which the 1/f frequency noise changes to white noise increases as the free layer is aligned away from the anti-parallel orientation w.r.t the reference layer. Lastly, these results indicate that the origin of 1/f frequency noise is related to mode-hopping which produces both white noise as well as 1/f frequency noise similar to the case of ring lasers.},
doi = {10.1063/1.4896634},
journal = {Applied Physics Letters},
number = 13,
volume = 105,
place = {United States},
year = {Mon Sep 29 00:00:00 EDT 2014},
month = {Mon Sep 29 00:00:00 EDT 2014}
}
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Publisher's Version of Record
https://doi.org/10.1063/1.4896634
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Cited by: 16 works
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Works referenced in this record:

Spin Torque Oscillators and RF Currents—Modulation, Locking, and Ringing
journal, January 2011

Spin torque oscillator frequency versus magnetic field angle: The prospect of operation beyond 65 GHz
journal, March 2009

  • Bonetti, Stefano; Muduli, Pranaba; Mancoff, Fred
  • Applied Physics Letters, Vol. 94, Issue 10
  • DOI: 10.1063/1.3097238

Frequency modulation of spin-transfer oscillators
journal, February 2005

  • Pufall, M. R.; Rippard, W. H.; Kaka, S.
  • Applied Physics Letters, Vol. 86, Issue 8
  • DOI: 10.1063/1.1875762

Dependence of the colored frequency noise in spin torque oscillators on current and magnetic field
journal, March 2014

  • Eklund, Anders; Bonetti, Stefano; Sani, Sohrab R.
  • Applied Physics Letters, Vol. 104, Issue 9
  • DOI: 10.1063/1.4867257

Amplitude and phase noise of magnetic tunnel junction oscillators
journal, November 2010

  • Quinsat, M.; Gusakova, D.; Sierra, J. F.
  • Applied Physics Letters, Vol. 97, Issue 18
  • DOI: 10.1063/1.3506901

Current-driven excitation of magnetic multilayers
journal, June 1996

Agility of vortex-based nanocontact spin torque oscillators
journal, November 2009

  • Manfrini, M.; Devolder, T.; Kim, Joo-Von
  • Applied Physics Letters, Vol. 95, Issue 19
  • DOI: 10.1063/1.3263727

APPLIED PHYSICS: Toward a Universal Memory
journal, April 2005

Intrinsic frequency doubling in a magnetic tunnel junction–based spin torque oscillator
journal, October 2011

  • Muduli, P. K.; Heinonen, O. G.; Åkerman, Johan
  • Journal of Applied Physics, Vol. 110, Issue 7
  • DOI: 10.1063/1.3647759

Emission of spin waves by a magnetic multilayer traversed by a current
journal, October 1996

Current-driven microwave dynamics in magnetic point contacts as a function of applied field angle
journal, September 2004

A GHz Spintronic-Based RF Oscillator
journal, January 2010

  • Villard, Patrick; Ebels, Ursula; Houssameddine, Dimitri
  • IEEE Journal of Solid-State Circuits, Vol. 45, Issue 1
  • DOI: 10.1109/JSSC.2009.2034432

A 4-Mb toggle MRAM based on a novel bit and switching method
journal, January 2005

Stochastic theory of spin-transfer oscillator linewidths
journal, May 2006

Generation Linewidth of an Auto-Oscillator with a Nonlinear Frequency Shift: Spin-Torque Nano-Oscillator
journal, January 2008

Line Shape Distortion in a Nonlinear Auto-Oscillator Near Generation Threshold: Application to Spin-Torque Nano-Oscillators
journal, April 2008

Temperature dependence of nonlinear auto-oscillator linewidths: Application to spin-torque nano-oscillators
journal, September 2008

Nonlinear Auto-Oscillator Theory of Microwave Generation by Spin-Polarized Current
journal, April 2009

Theory of Thermally Induced Phase Noise in Spin Torque Oscillators for a High-Symmetry Case
journal, September 2010

Nonwhite frequency noise in spin torque oscillators and its effect on spectral linewidth
journal, August 2010

Generation linewidth of mode-hopping spin torque oscillators
journal, February 2014

Decoherence and Mode Hopping in a Magnetic Tunnel Junction Based Spin Torque Oscillator
journal, May 2012

Spin-Wave-Mode Coexistence on the Nanoscale: A Consequence of the Oersted-Field-Induced Asymmetric Energy Landscape
journal, June 2013

Bias dependence of perpendicular spin torque and of free- and fixed-layer eigenmodes in MgO-based nanopillars
journal, May 2011

Electrical mode-hopping noise in external-cavity semiconductor lasers and mode-hopping elimination by a nonoptical control loop
journal, December 1987

Agility of vortex-based nanocontact spin torque oscillators
text, January 2009

Non-white frequency noise in spin torque oscillators and its effect on spectral linewidth
text, January 2010

Decoherence and mode-hopping in a magnetic tunnel junction-based spin-torque oscillator
text, January 2012

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    Works referencing / citing this record:

    Tunable Mode Coupling in Nanocontact Spin-Torque Oscillators
    journal, July 2017

    Influence of MgO barrier quality on spin-transfer torque in magnetic tunnel junctions
    journal, January 2018

    • Tiwari, Dhananjay; Sharma, Raghav; Heinonen, O. G.
    • Applied Physics Letters, Vol. 112, Issue 2
    • DOI: 10.1063/1.5005893

    Auto-oscillating Spin-Wave Modes of Constriction-Based Spin Hall Nano-oscillators in Weak In-Plane Fields
    journal, November 2018

    Dynamical Mode Coupling and Coherence in a Spin Hall Nano-Oscillator with Perpendicular Magnetic Anisotropy
    journal, June 2019

    Injection locking of multiple auto-oscillation modes in a tapered nanowire spin Hall oscillator
    journal, October 2018

    Reduction of phase noise in nanowire spin orbit torque oscillators
    journal, November 2015

    • Yang, Liu; Verba, Roman; Tiberkevich, Vasil
    • Scientific Reports, Vol. 5, Issue 1
    • DOI: 10.1038/srep16942

    Spin-Torque and Spin-Hall Nano-Oscillators
    preprint, January 2015

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