Strongly extended diffusion length for the nonequilibrium magnons in Y3Fe5O12 by photoexcitation

Wang, S. H.; Li, G.; Guo, E. J.; Zhao, Y.; Wang, J. Y.; Zou, L. K.; Yan, H.; Cai, J. W.; Zhang, Z. T.; Wang, M.; Tian, Y. Y.; Zheng, X. L.; Sun, J. R.; Jin, K. X.

doi:10.1103/PhysRevMaterials.2.051401

Title: Strongly extended diffusion length for the nonequilibrium magnons in $Y_{3} F e_{5} O_{12}$ by photoexcitation

Abstract

Y₃Fe₅O₁₂ (YIG) is known for its long magnon diffusion length. Although it has the known lowest damping rate, an even longer diffusion distance is still highly desired since it may lead to a much more efficient information transmission and processing. While most of previous works focused on the generation and detection of magnons in YIG, here we demonstrate how to depress the damping rate during the diffusion of magnon. By selectively exciting the spin state transition of the Fe ions in YIG, we successfully increase magnon diffusion length by one order of magnitude, i.e., from the previous reported ~10 μm up to ~156 μm (for the sample prepared by liquid phase epitaxy) and ~180 μm (for the sample prepared by pulsed laser deposition) at room temperature. The diffusion length, determined by nonlocal geometry, is ~30 μm for the magnons induced by visible light and above 150 μm for the laser of 980 nm. In addition to thermal gradient, light excitation affects the electron configuration of the Fe³⁺ ion in YIG. Long-wavelength laser is more effective since it causes a transition of the Fe³⁺ ions in FeO₆ octahedron from a high spin to a low spin state and thus causes amore »« less

Authors:

Wang, S. H. ^[1]; Li, G. ^[2];

^[3]; Zhao, Y. ^[1]; Wang, J. Y. ^[1]; Zou, L. K. ^[4]; Yan, H. ^[1]; Cai, J. W. ^[2]; Zhang, Z. T. ^[1]; Wang, M. ^[1]; Tian, Y. Y. ^[1]; Zheng, X. L. ^[2]; Sun, J. R. ^[2]; Jin, K. X. ^[1]

Northwestern Polytechnical Univ., Xi'an (China)
Chinese Academy of Sciences (CAS), Beijing (China)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Chinese Academy of Science, Hefei (China)

Publication Date:: 2018-05-09

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1437892

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review Materials

Additional Journal Information:: Journal Volume: 2; Journal Issue: 5; Journal ID: ISSN 2475-9953

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Wang, S. H., Li, G., Guo, E. J., Zhao, Y., Wang, J. Y., Zou, L. K., Yan, H., Cai, J. W., Zhang, Z. T., Wang, M., Tian, Y. Y., Zheng, X. L., Sun, J. R., and Jin, K. X.. Strongly extended diffusion length for the nonequilibrium magnons in Y3Fe5O12 by photoexcitation.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevMaterials.2.051401.

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                    Wang, S. H., Li, G., Guo, E. J., Zhao, Y., Wang, J. Y., Zou, L. K., Yan, H., Cai, J. W., Zhang, Z. T., Wang, M., Tian, Y. Y., Zheng, X. L., Sun, J. R., & Jin, K. X.. Strongly extended diffusion length for the nonequilibrium magnons in Y3Fe5O12 by photoexcitation.  United States.  https://doi.org/10.1103/PhysRevMaterials.2.051401

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                    Wang, S. H., Li, G., Guo, E. J., Zhao, Y., Wang, J. Y., Zou, L. K., Yan, H., Cai, J. W., Zhang, Z. T., Wang, M., Tian, Y. Y., Zheng, X. L., Sun, J. R., and Jin, K. X.. Wed .  
"Strongly extended diffusion length for the nonequilibrium magnons in Y3Fe5O12 by photoexcitation".  United States.  https://doi.org/10.1103/PhysRevMaterials.2.051401.  https://www.osti.gov/servlets/purl/1437892.

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@article{osti_1437892,

  title        = {Strongly extended diffusion length for the nonequilibrium magnons in Y3Fe5O12 by photoexcitation},

  author       = {Wang, S. H. and Li, G. and Guo, E. J. and Zhao, Y. and Wang, J. Y. and Zou, L. K. and Yan, H. and Cai, J. W. and Zhang, Z. T. and Wang, M. and Tian, Y. Y. and Zheng, X. L. and Sun, J. R. and Jin, K. X.},

  abstractNote = {Y3Fe5O12 (YIG) is known for its long magnon diffusion length. Although it has the known lowest damping rate, an even longer diffusion distance is still highly desired since it may lead to a much more efficient information transmission and processing. While most of previous works focused on the generation and detection of magnons in YIG, here we demonstrate how to depress the damping rate during the diffusion of magnon. By selectively exciting the spin state transition of the Fe ions in YIG, we successfully increase magnon diffusion length by one order of magnitude, i.e., from the previous reported ~10 μm up to ~156 μm (for the sample prepared by liquid phase epitaxy) and ~180 μm (for the sample prepared by pulsed laser deposition) at room temperature. The diffusion length, determined by nonlocal geometry, is ~30 μm for the magnons induced by visible light and above 150 μm for the laser of 980 nm. In addition to thermal gradient, light excitation affects the electron configuration of the Fe3+ ion in YIG. Long-wavelength laser is more effective since it causes a transition of the Fe3+ ions in FeO6 octahedron from a high spin to a low spin state and thus causes a magnon softening which favors a long-distance diffusion. Furthermore, the present work paves the way toward an efficient tuning of magnon transport which is crucially important for magnon spintronics.},

  doi          = {10.1103/PhysRevMaterials.2.051401},

  journal      = {Physical Review Materials},

  number       = 5,

  volume       = 2,

  place        = {United States},

  year         = {2018},

  month        = {5}

}

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Journal Article:

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https://doi.org/10.1103/PhysRevMaterials.2.051401

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Cited by: 11 works

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FIG. 1: A schematic diagram of the experimental setup.

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Works referenced in this record:

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Similar Records

Title: Strongly extended diffusion length for the nonequilibrium magnons in Y 3 F e 5 O 12 by photoexcitation

Abstract

Citation Formats

Figures / Tables:

Spin-Torque Switching with the Giant Spin Hall Effect of Tantalum journal, May 2012

Molecular Field Model and the Magnetization of YIG journal, June 1964

Spin Seebeck effect and spin Hall magnetoresistance at high temperatures for a Pt/yttrium iron garnet hybrid structure journal, January 2015

Chemical solution synthesis and ferromagnetic resonance of epitaxial thin films of yttrium iron garnet journal, December 2017

Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator journal, April 2017

Effect of the magnon dispersion on the longitudinal spin Seebeck effect in yttrium iron garnets journal, August 2015

Thermally driven long-range magnon spin currents in yttrium iron garnet due to intrinsic spin Seebeck effect journal, November 2017

Thermal Generation of Spin Current in an Antiferromagnet journal, December 2015

Long-range pure magnon spin diffusion observed in a nonlocal spin-Seebeck geometry journal, December 2015

Length Scale of the Spin Seebeck Effect journal, August 2015

Thermal Spin Dynamics of Yttrium Iron Garnet journal, November 2016

Ferromagnetic Relaxation. I. Theory of the Relaxation of the Uniform Precession and the Degenerate Spectrum in Insulators at Low Temperatures journal, May 1961

Antiferromagnetism. Theory of Superexchange Interaction journal, July 1950

Observation of the spin Seebeck effect in epitaxial Fe 3 O 4 thin films journal, February 2013

Temperature dependence of the magnon spin diffusion length and magnon spin conductivity in the magnetic insulator yttrium iron garnet journal, November 2016

β-Tantalum, a better candidate for spin-to-charge conversion journal, January 2017

Photo-spin-voltaic effect journal, April 2016

Spin Waves journal, January 1958

Criteria for accurate determination of the magnon relaxation length from the nonlocal spin Seebeck effect journal, November 2017

Enhanced spin Seebeck effect signal due to spin-momentum locked topological surface states journal, May 2016

Transport Magnetic Proximity Effects in Platinum journal, September 2012

Magnon-phonon effects in ferromagnetic manganites journal, November 2001

Observation of longitudinal spin-Seebeck effect in magnetic insulators journal, October 2010

Critical suppression of spin Seebeck effect by magnetic fields journal, August 2015

Long-distance transport of magnon spin information in a magnetic insulator at room temperature journal, September 2015

Magnon Mode Selective Spin Transport in Compensated Ferrimagnets journal, May 2017

Longitudinal spin Seebeck effect: from fundamentals to applications journal, August 2014

Absorption spectra of Y 3 Fe 5 O 12 (YIG) and Y 3 Ga 5 O 12 : Fe 3 + journal, August 1974

Magnons and Phonons Optically Driven out of Local Equilibrium in a Magnetic Insulator journal, August 2016

Pt Magnetic Polarization on Y 3 Fe 5 O 12 and Magnetotransport Characteristics journal, April 2013

Optical properties of epitaxial iron garnet thin films journal, March 1974

A scalable molecule-based magnetic thin film for spin-thermoelectric energy conversion journal, February 2021

Spin waves journal, April 1969

Spin waves journal, January 1972

The effect of the magnon dispersion on the longitudinal spin Seebeck effect in yttrium iron garnets (YIG) text, January 2015

Long distance transport of magnon spin information in a magnetic insulator at room temperature text, January 2015

Magnons and Phonons Optically Driven Out of Local Equilibrium in a Magnetic Insulator text, January 2016

Enhanced spin Seebeck effect signal due to spin-momentum locked topological surface states text, January 2016

Temperature dependence of the magnon spin diffusion length and magnon spin conductivity in the magnetic insulator yttrium iron garnet text, January 2016

Thermally Driven Long Range Magnon Spin Currents in Yttrium Iron Garnet due to Intrinsic Spin Seebeck Effect text, January 2017

Criteria for accurate determination of the magnon relaxation length from the nonlocal spin Seebeck effect text, January 2017

Title: Strongly extended diffusion length for the nonequilibrium magnons in $Y_{3} F e_{5} O_{12}$ by photoexcitation

Spin-Torque Switching with the Giant Spin Hall Effect of Tantalum
journal, May 2012

Molecular Field Model and the Magnetization of YIG
journal, June 1964

Spin Seebeck effect and spin Hall magnetoresistance at high temperatures for a Pt/yttrium iron garnet hybrid structure
journal, January 2015

Chemical solution synthesis and ferromagnetic resonance of epitaxial thin films of yttrium iron garnet
journal, December 2017

Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator
journal, April 2017

Effect of the magnon dispersion on the longitudinal spin Seebeck effect in yttrium iron garnets
journal, August 2015

Thermally driven long-range magnon spin currents in yttrium iron garnet due to intrinsic spin Seebeck effect
journal, November 2017

Thermal Generation of Spin Current in an Antiferromagnet
journal, December 2015

Long-range pure magnon spin diffusion observed in a nonlocal spin-Seebeck geometry
journal, December 2015

Length Scale of the Spin Seebeck Effect
journal, August 2015

Thermal Spin Dynamics of Yttrium Iron Garnet
journal, November 2016

Ferromagnetic Relaxation. I. Theory of the Relaxation of the Uniform Precession and the Degenerate Spectrum in Insulators at Low Temperatures
journal, May 1961

Antiferromagnetism. Theory of Superexchange Interaction
journal, July 1950

Observation of the spin Seebeck effect in epitaxial Fe ₃ O ₄ thin films
journal, February 2013

Temperature dependence of the magnon spin diffusion length and magnon spin conductivity in the magnetic insulator yttrium iron garnet
journal, November 2016

β-Tantalum, a better candidate for spin-to-charge conversion
journal, January 2017

Photo-spin-voltaic effect
journal, April 2016

Spin Waves
journal, January 1958

Criteria for accurate determination of the magnon relaxation length from the nonlocal spin Seebeck effect
journal, November 2017

Enhanced spin Seebeck effect signal due to spin-momentum locked topological surface states
journal, May 2016

Transport Magnetic Proximity Effects in Platinum
journal, September 2012

Magnon-phonon effects in ferromagnetic manganites
journal, November 2001

Observation of longitudinal spin-Seebeck effect in magnetic insulators
journal, October 2010

Critical suppression of spin Seebeck effect by magnetic fields
journal, August 2015

Long-distance transport of magnon spin information in a magnetic insulator at room temperature
journal, September 2015

Magnon Mode Selective Spin Transport in Compensated Ferrimagnets
journal, May 2017

Longitudinal spin Seebeck effect: from fundamentals to applications
journal, August 2014

Absorption spectra of $Y_{3}$ ${Fe}_{5}$ $O_{12}$ (YIG) and $Y_{3}$ ${Ga}_{5}$ $O_{12}$ : ${Fe}^{3 +}$
journal, August 1974

Magnons and Phonons Optically Driven out of Local Equilibrium in a Magnetic Insulator
journal, August 2016

Pt Magnetic Polarization on $Y_{3} {Fe}_{5} O_{12}$ and Magnetotransport Characteristics
journal, April 2013

Optical properties of epitaxial iron garnet thin films
journal, March 1974

A scalable molecule-based magnetic thin film for spin-thermoelectric energy conversion
journal, February 2021

Spin waves
journal, April 1969

Spin waves
journal, January 1972

The effect of the magnon dispersion on the longitudinal spin Seebeck effect in yttrium iron garnets (YIG)
text, January 2015

Long distance transport of magnon spin information in a magnetic insulator at room temperature
text, January 2015

Magnons and Phonons Optically Driven Out of Local Equilibrium in a Magnetic Insulator
text, January 2016

Enhanced spin Seebeck effect signal due to spin-momentum locked topological surface states
text, January 2016

Temperature dependence of the magnon spin diffusion length and magnon spin conductivity in the magnetic insulator yttrium iron garnet
text, January 2016

Thermally Driven Long Range Magnon Spin Currents in Yttrium Iron Garnet due to Intrinsic Spin Seebeck Effect
text, January 2017

Criteria for accurate determination of the magnon relaxation length from the nonlocal spin Seebeck effect
text, January 2017