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Title: Observation of magnon-mediated current drag in Pt/yttrium iron garnet/Pt(Ta) trilayers

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms10858· OSTI ID:1252900
 [1];  [1];  [1];  [1];  [1];  [2];  [1];  [1]
  1. Univ. of California, Riverside, CA (United States)
  2. Univ. of Arizona, Tucson, AZ (United States)

Pure spin current, a flow of spin angular momentum without flow of any accompanying net charge, is generated in two common ways. One makes use of the spin Hall effect in normal metals (NM) with strong spin–orbit coupling, such as Pt or Ta. The other utilizes the collective motion of magnetic moments or spin waves with the quasi-particle excitations called magnons. A popular material for the latter is yttrium iron garnet, a magnetic insulator (MI). Here we demonstrate in NM/MI/NM trilayers that these two types of spin currents are interconvertible across the interfaces, predicated as the magnon-mediated current drag phenomenon. The transmitted signal scales linearly with the driving current without a threshold and follows the power-law Tn with n ranging from 1.5 to 2.5. Lastly, our results indicate that the NM/MI/NM trilayer structure can serve as a scalable pure spin current valve device which is an essential ingredient in spintronics.

Research Organization:
Univ. of California, Riverside, CA (United States); Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012670
OSTI ID:
1252900
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 93 works
Citation information provided by
Web of Science

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Cited By (40)

Spin current from sub-terahertz-generated antiferromagnetic magnons journal January 2020
Spin Hall-induced auto-oscillations in ultrathin YIG grown on Pt journal January 2018
Spin Funneling for Enhanced Spin Injection into Ferromagnets journal July 2016
Exquisite growth control and magnetic properties of yttrium iron garnet thin films journal March 2016
Giant magneto-spin-Seebeck effect and magnon transfer torques in insulating spin valves journal January 2018
Fabrication of yttrium–iron–garnet/Pt multilayers for the longitudinal spin Seebeck effect journal December 2018
Enhanced magnon spin transport in NiFe 2 O 4 thin films on a lattice-matched substrate journal October 2018
Perspective: (Beyond) spin transport in insulators journal November 2018
Systematic control of strain-induced perpendicular magnetic anisotropy in epitaxial europium and terbium iron garnet thin films journal December 2018
Spin-orbit torque switching in perpendicular Y 3 Fe 5 O 12 /Pt bilayer journal May 2019
Electrical manipulation of spin pumping signal through nonlocal thermal magnon transport journal October 2019
Magnetization reversal in YIG/GGG(111) nanoheterostructures grown by laser molecular beam epitaxy journal January 2017
Nonlocal magnon spin transport in yttrium iron garnet with tantalum and platinum spin injection/detection electrodes journal May 2018
Pure spin currents in magnetically ordered insulator/normal metal heterostructures journal July 2018
Magnon spin transport driven by the magnon chemical potential in a magnetic insulator journal July 2016
Spin-Josephson effects in exchange coupled antiferromagnetic insulators journal September 2016
Theory of unidirectional spin Hall magnetoresistance in heavy-metal/ferromagnetic-metal bilayers journal October 2016
Influence of yttrium iron garnet thickness and heater opacity on the nonlocal transport of electrically and thermally excited magnons journal November 2016
Temperature dependence of the magnon spin diffusion length and magnon spin conductivity in the magnetic insulator yttrium iron garnet journal November 2016
Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator journal April 2017
Magnon valves based on YIG/NiO/YIG all-insulating magnon junctions journal October 2018
Magnon-phonon interactions in magnetic insulators journal May 2019
Incoherent spin pumping from YIG single crystals journal June 2019
Magnon Polarons in the Spin Seebeck Effect journal November 2016
Magnon Valve Effect between Two Magnetic Insulators journal March 2018
Spin-Current-Controlled Modulation of the Magnon Spin Conductance in a Three-Terminal Magnon Transistor journal March 2018
Magnon Pairs and Spin-Nematic Correlation in the Spin Seebeck Effect journal September 2019
Magnetization reversal in YIG/GGG(111) nanoheterostructures grown by laser molecular beam epitaxy text January 2017
Temperature dependence of the magnon spin diffusion length and magnon spin conductivity in the magnetic insulator yttrium iron garnet text January 2016
Magnon Polarons in the Spin Seebeck Effect text January 2016
Influence of yttrium iron garnet thickness and heater opacity on the nonlocal transport of electrically and thermally excited magnons text January 2016
Theory of unidirectional spin Hall magnetoresistance in heavy-metal/ferromagnetic-metal bilayers text January 2016
Nonlocal magnon spin transport in yttrium iron garnet with tantalum and platinum spin injection/detection electrodes text January 2018
Enhanced magnon spin transport in NiFe$_2$O$_4$ thin films on a lattice-matched substrate text January 2018
Perspective: (Beyond) spin transport in insulators text January 2018
Systematic Control of Strain-Induced Perpendicular Magnetic Anisotropy in Epitaxial Europium and Terbium Iron Garnets Thin Films text January 2018
Magnon-phonon interactions in magnetic insulators text January 2019
Magnon Pairs and Spin-Nematic Correlation in the Spin-Seebeck Effect text January 2019
Energy repartition in the nonequilibrium steady state journal January 2017
Magnetically Ordered Insulators for Advanced Spintronics preprint January 2017

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