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Title: Driving and detecting ferromagnetic resonance in insulators with the spin Hall effect

Abstract

We demonstrate the generation and detection of spin-torque ferromagnetic resonance in Pt/Y3Fe5O12 (YIG) bilayers. A unique attribute of this system is that the spin Hall effect lies at the heart of both the generation and detection processes and no charge current is passing through the insulating magnetic layer. When the YIG undergoes resonance, a dc voltage is detected longitudinally along the Pt that can be described by two components. One is the mixing of the spin Hall magnetoresistance with the microwave current. The other results from spin pumping into the Pt being converted to a dc current through the inverse spin Hall effect. The voltage is measured with applied magnetic field directions that range in-plane to nearly perpendicular. In conclusion, we find that for magnetic fields that are mostly out-of-plane, an imaginary component of the spin mixing conductance is required to model our data.

Authors:
 [1];  [2];  [2];  [2];  [3];  [2];  [3];  [4];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  3. Colorado State Univ., Fort Collins, CO (United States). Physics Dept.
  4. Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States); Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); US Army Research Office (ARO)
OSTI Identifier:
1237692
Alternate Identifier(s):
OSTI ID: 1225407
Grant/Contract Number:  
AC02-06CH11357; SC0012670; DMR-1121262
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 17; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Sklenar, Joseph, Zhang, Wei, Jungfleisch, Matthias B., Jiang, Wanjun, Chang, Houchen, Pearson, John E., Wu, Mingzhong, Ketterson, John B., and Hoffmann, Axel. Driving and detecting ferromagnetic resonance in insulators with the spin Hall effect. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.92.174406.
Sklenar, Joseph, Zhang, Wei, Jungfleisch, Matthias B., Jiang, Wanjun, Chang, Houchen, Pearson, John E., Wu, Mingzhong, Ketterson, John B., & Hoffmann, Axel. Driving and detecting ferromagnetic resonance in insulators with the spin Hall effect. United States. doi:10.1103/PhysRevB.92.174406.
Sklenar, Joseph, Zhang, Wei, Jungfleisch, Matthias B., Jiang, Wanjun, Chang, Houchen, Pearson, John E., Wu, Mingzhong, Ketterson, John B., and Hoffmann, Axel. Fri . "Driving and detecting ferromagnetic resonance in insulators with the spin Hall effect". United States. doi:10.1103/PhysRevB.92.174406. https://www.osti.gov/servlets/purl/1237692.
@article{osti_1237692,
title = {Driving and detecting ferromagnetic resonance in insulators with the spin Hall effect},
author = {Sklenar, Joseph and Zhang, Wei and Jungfleisch, Matthias B. and Jiang, Wanjun and Chang, Houchen and Pearson, John E. and Wu, Mingzhong and Ketterson, John B. and Hoffmann, Axel},
abstractNote = {We demonstrate the generation and detection of spin-torque ferromagnetic resonance in Pt/Y3Fe5O12 (YIG) bilayers. A unique attribute of this system is that the spin Hall effect lies at the heart of both the generation and detection processes and no charge current is passing through the insulating magnetic layer. When the YIG undergoes resonance, a dc voltage is detected longitudinally along the Pt that can be described by two components. One is the mixing of the spin Hall magnetoresistance with the microwave current. The other results from spin pumping into the Pt being converted to a dc current through the inverse spin Hall effect. The voltage is measured with applied magnetic field directions that range in-plane to nearly perpendicular. In conclusion, we find that for magnetic fields that are mostly out-of-plane, an imaginary component of the spin mixing conductance is required to model our data.},
doi = {10.1103/PhysRevB.92.174406},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 17,
volume = 92,
place = {United States},
year = {2015},
month = {11}
}

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Cited by: 15 works
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Works referenced in this record:

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    Works referencing / citing this record:

    Determining spin-torque efficiency in ferromagnetic metals via spin-torque ferromagnetic resonance
    journal, February 2020


    Epitaxial patterning of nanometer-thick Y 3 Fe 5 O 12 films with low magnetic damping
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    Spin-torque ferromagnetic resonance measurements utilizing spin Hall magnetoresistance in W/Co40Fe40B20/MgO structures
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    Simultaneous Optical and Electrical Spin-Torque Magnetometry with Phase-Sensitive Detection of Spin Precession
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    High-Frequency Dynamics Modulated by Collective Magnetization Reversal in Artificial Spin Ice
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    Magnetic properties and domain structure of ultrathin yttrium iron garnet/Pt bilayers
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