Temporal Evolution of Auto-Oscillations in an Yttrium-Iron-Garnet/Platinum Microdisk Driven by Pulsed Spin Hall Effect-Induced Spin-Transfer Torque

Lauer, Viktor; Schneider, Michael; Meyer, Thomas; Bracher, Thomas; Pirro, Philipp; Heinz, Bjorn; Heussner, Frank; Lagel, Bert; Onbasli, Mehmet C.; Ross, Caroline A.; Hillebrands, Burkard; Chumak, Andrii V.

doi:10.1109/lmag.2017.2661243

Title: Temporal Evolution of Auto-Oscillations in an Yttrium-Iron-Garnet/Platinum Microdisk Driven by Pulsed Spin Hall Effect-Induced Spin-Transfer Torque

Abstract

The temporal evolution of pulsed spin Hall effect-spin transfer torque (SHE-STT) driven auto-oscillations in a yttrium iron garnet (YIG)-platinum (Pt) microdisk is studied experimentally using time-resolved Brillouin light scattering spectroscopy. The frequency of the auto-oscillations is different in the center when compared to the edge of the disk and is related to the simultaneous STT excitation of a bullet and a non-localized spin-wave mode. Furthermore, the magnetization precession intensity saturates on a time scale of 20 ns or longer, depending on the current density. For this reason, our findings suggest that a proper ratio between the current and the pulse duration is of crucial importance for future STT-based devices.

Authors:

Lauer, Viktor ^[1]; Schneider, Michael ^[1]; Meyer, Thomas ^[1]; Bracher, Thomas ^[1]; Pirro, Philipp ^[1]; Heinz, Bjorn ^[1]; Heussner, Frank ^[1]; Lagel, Bert ^[1]; Onbasli, Mehmet C. ^[2]; Ross, Caroline A. ^[2]; Hillebrands, Burkard ^[1];

^[1]

Technische Univ. Kaiserslautern, Kaiserslautern (Germany). Fachbereich Physik and Landesforschungszentrum (OPTIMAS)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Materials Science and Engineering

Publication Date:: Mon Jan 30 00:00:00 EST 2017

Research Org.:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1536625

Grant/Contract Number:: SC0001299

Resource Type:: Accepted Manuscript

Journal Name:: IEEE Magnetics Letters

Additional Journal Information:: Journal Volume: 8; Journal Issue: none; Journal ID: ISSN 1949-307X

Publisher:: IEEE

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Engineering; Physics; Current density; Magnetization; Damping; Image edge detection; Torque; Oscillators; Gold

Citation Formats


                    Lauer, Viktor, Schneider, Michael, Meyer, Thomas, Bracher, Thomas, Pirro, Philipp, Heinz, Bjorn, Heussner, Frank, Lagel, Bert, Onbasli, Mehmet C., Ross, Caroline A., Hillebrands, Burkard, and Chumak, Andrii V. Temporal Evolution of Auto-Oscillations in an Yttrium-Iron-Garnet/Platinum Microdisk Driven by Pulsed Spin Hall Effect-Induced Spin-Transfer Torque.  United States: N. p., 2017. 
Web.  doi:10.1109/lmag.2017.2661243.

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                    Lauer, Viktor, Schneider, Michael, Meyer, Thomas, Bracher, Thomas, Pirro, Philipp, Heinz, Bjorn, Heussner, Frank, Lagel, Bert, Onbasli, Mehmet C., Ross, Caroline A., Hillebrands, Burkard, & Chumak, Andrii V. Temporal Evolution of Auto-Oscillations in an Yttrium-Iron-Garnet/Platinum Microdisk Driven by Pulsed Spin Hall Effect-Induced Spin-Transfer Torque.  United States.  https://doi.org/10.1109/lmag.2017.2661243

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                    Lauer, Viktor, Schneider, Michael, Meyer, Thomas, Bracher, Thomas, Pirro, Philipp, Heinz, Bjorn, Heussner, Frank, Lagel, Bert, Onbasli, Mehmet C., Ross, Caroline A., Hillebrands, Burkard, and Chumak, Andrii V. Mon .  
"Temporal Evolution of Auto-Oscillations in an Yttrium-Iron-Garnet/Platinum Microdisk Driven by Pulsed Spin Hall Effect-Induced Spin-Transfer Torque".  United States.  https://doi.org/10.1109/lmag.2017.2661243.  https://www.osti.gov/servlets/purl/1536625.

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@article{osti_1536625,

  title        = {Temporal Evolution of Auto-Oscillations in an Yttrium-Iron-Garnet/Platinum Microdisk Driven by Pulsed Spin Hall Effect-Induced Spin-Transfer Torque},

  author       = {Lauer, Viktor and Schneider, Michael and Meyer, Thomas and Bracher, Thomas and Pirro, Philipp and Heinz, Bjorn and Heussner, Frank and Lagel, Bert and Onbasli, Mehmet C. and Ross, Caroline A. and Hillebrands, Burkard and Chumak, Andrii V.},

  abstractNote = {The temporal evolution of pulsed spin Hall effect-spin transfer torque (SHE-STT) driven auto-oscillations in a yttrium iron garnet (YIG)-platinum (Pt) microdisk is studied experimentally using time-resolved Brillouin light scattering spectroscopy. The frequency of the auto-oscillations is different in the center when compared to the edge of the disk and is related to the simultaneous STT excitation of a bullet and a non-localized spin-wave mode. Furthermore, the magnetization precession intensity saturates on a time scale of 20 ns or longer, depending on the current density. For this reason, our findings suggest that a proper ratio between the current and the pulse duration is of crucial importance for future STT-based devices.},

  doi          = {10.1109/lmag.2017.2661243},

  journal      = {IEEE Magnetics Letters},

  number       = none,

  volume       = 8,

  place        = {United States},

  year         = {Mon Jan 30 00:00:00 EST 2017},

  month        = {Mon Jan 30 00:00:00 EST 2017}

}

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Works referencing / citing this record:

Magnonic crystals for data processing
journal, May 2017

Chumak, A. V.; Serga, A. A.; Hillebrands, B.
Journal of Physics D: Applied Physics, Vol. 50, Issue 24
DOI: 10.1088/1361-6463/aa6a65

Magnonic crystals for data processing
text, January 2017

Chumak, A. V.; Serha, A. A.; Hillebrands, B.
arXiv
DOI: 10.48550/arxiv.1702.06701

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Title: Temporal Evolution of Auto-Oscillations in an Yttrium-Iron-Garnet/Platinum Microdisk Driven by Pulsed Spin Hall Effect-Induced Spin-Transfer Torque

Abstract

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Magnonic crystals for data processing journal, May 2017

Magnonic crystals for data processing text, January 2017

Magnonic crystals for data processing
journal, May 2017

Magnonic crystals for data processing
text, January 2017