skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Exploring interfacial exchange coupling and sublattice effect in heavy metal/ferrimagnetic insulator heterostructures using Hall measurements, x-ray magnetic circular dichroism, and neutron reflectometry

Abstract

We use temperature-dependent Hall measurements to identify contributions of spin Hall, magnetic proximity, and sublattice effects to the anomalous Hall signal in heavy metal/ferrimagnetic insulator heterostructures with perpendicular magnetic anisotropy. This approach enables detection of both the magnetic proximity effect onset temperature and the magnetization compensation temperature and provides essential information regarding the interfacial exchange coupling. Onset of a magnetic proximity effect yields a local extremum in the temperature-dependent anomalous Hall signal, which occurs at higher temperature as magnetic insulator thickness increases. This magnetic proximity effect onset occurs at much higher temperature in Pt than W. The magnetization compensation point is identified by a sharp anomalous Hall sign change and divergent coercive field. We directly probe the magnetic proximity effect using x-ray magnetic circular dichroism and polarized neutron reflectometry, which reveal an antiferromagnetic coupling between W and the magnetic insulator. Finally, we summarize the exchange-coupling configurations and the anomalous Hall-effect sign of the magnetized heavy metal in various heavy metal/magnetic insulator heterostructures.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES); Univ. of California, Oakland, CA (United States); Univ. of California, Riverside, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1566688
DOE Contract Number:  
AC02-05CH11231; SC0012670
Resource Type:
Journal Article
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 99; Journal Issue: 10; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
phonons, thermal conductivity, thermoelectric, spin dynamics, spintronics

Citation Formats

Shao, Qiming, Grutter, Alexander, Liu, Yawen, Yu, Guoqiang, Yang, Chao-Yao, Gilbert, Dustin A., Arenholz, Elke, Shafer, Padraic, Che, Xiaoyu, Tang, Chi, Aldosary, Mohammed, Navabi, Aryan, He, Qing Lin, Kirby, Brian J., Shi, Jing, and Wang, Kang L. Exploring interfacial exchange coupling and sublattice effect in heavy metal/ferrimagnetic insulator heterostructures using Hall measurements, x-ray magnetic circular dichroism, and neutron reflectometry. United States: N. p., 2019. Web. doi:10.1103/physrevb.99.104401.
Shao, Qiming, Grutter, Alexander, Liu, Yawen, Yu, Guoqiang, Yang, Chao-Yao, Gilbert, Dustin A., Arenholz, Elke, Shafer, Padraic, Che, Xiaoyu, Tang, Chi, Aldosary, Mohammed, Navabi, Aryan, He, Qing Lin, Kirby, Brian J., Shi, Jing, & Wang, Kang L. Exploring interfacial exchange coupling and sublattice effect in heavy metal/ferrimagnetic insulator heterostructures using Hall measurements, x-ray magnetic circular dichroism, and neutron reflectometry. United States. doi:10.1103/physrevb.99.104401.
Shao, Qiming, Grutter, Alexander, Liu, Yawen, Yu, Guoqiang, Yang, Chao-Yao, Gilbert, Dustin A., Arenholz, Elke, Shafer, Padraic, Che, Xiaoyu, Tang, Chi, Aldosary, Mohammed, Navabi, Aryan, He, Qing Lin, Kirby, Brian J., Shi, Jing, and Wang, Kang L. Fri . "Exploring interfacial exchange coupling and sublattice effect in heavy metal/ferrimagnetic insulator heterostructures using Hall measurements, x-ray magnetic circular dichroism, and neutron reflectometry". United States. doi:10.1103/physrevb.99.104401.
@article{osti_1566688,
title = {Exploring interfacial exchange coupling and sublattice effect in heavy metal/ferrimagnetic insulator heterostructures using Hall measurements, x-ray magnetic circular dichroism, and neutron reflectometry},
author = {Shao, Qiming and Grutter, Alexander and Liu, Yawen and Yu, Guoqiang and Yang, Chao-Yao and Gilbert, Dustin A. and Arenholz, Elke and Shafer, Padraic and Che, Xiaoyu and Tang, Chi and Aldosary, Mohammed and Navabi, Aryan and He, Qing Lin and Kirby, Brian J. and Shi, Jing and Wang, Kang L.},
abstractNote = {We use temperature-dependent Hall measurements to identify contributions of spin Hall, magnetic proximity, and sublattice effects to the anomalous Hall signal in heavy metal/ferrimagnetic insulator heterostructures with perpendicular magnetic anisotropy. This approach enables detection of both the magnetic proximity effect onset temperature and the magnetization compensation temperature and provides essential information regarding the interfacial exchange coupling. Onset of a magnetic proximity effect yields a local extremum in the temperature-dependent anomalous Hall signal, which occurs at higher temperature as magnetic insulator thickness increases. This magnetic proximity effect onset occurs at much higher temperature in Pt than W. The magnetization compensation point is identified by a sharp anomalous Hall sign change and divergent coercive field. We directly probe the magnetic proximity effect using x-ray magnetic circular dichroism and polarized neutron reflectometry, which reveal an antiferromagnetic coupling between W and the magnetic insulator. Finally, we summarize the exchange-coupling configurations and the anomalous Hall-effect sign of the magnetized heavy metal in various heavy metal/magnetic insulator heterostructures.},
doi = {10.1103/physrevb.99.104401},
journal = {Physical Review B},
issn = {2469-9950},
number = 10,
volume = 99,
place = {United States},
year = {2019},
month = {3}
}

Works referenced in this record:

Transmission of electrical signals by spin-wave interconversion in a magnetic insulator
journal, March 2010


Spin Hall Magnetoresistance Induced by a Nonequilibrium Proximity Effect
journal, May 2013


Theory of spin Hall magnetoresistance
journal, April 2013


Anomalous Hall effect in YIG|Pt bilayers
journal, March 2015

  • Meyer, Sibylle; Schlitz, Richard; Geprägs, Stephan
  • Applied Physics Letters, Vol. 106, Issue 13
  • DOI: 10.1063/1.4916342

Tuning magnetotransport in PdPt/Y 3 Fe 5 O 12 : Effects of magnetic proximity and spin-orbit coupling
journal, July 2014

  • Zhou, X.; Ma, L.; Shi, Z.
  • Applied Physics Letters, Vol. 105, Issue 1
  • DOI: 10.1063/1.4890239

Transport Magnetic Proximity Effects in Platinum
journal, September 2012


Experimental Investigation of the Nature of the Magnetoresistance Effects in Pd-YIG Hybrid Structures
journal, July 2014


Fast domain wall motion in the vicinity of the angular momentum compensation temperature of ferrimagnets
journal, September 2017

  • Kim, Kab-Jin; Kim, Se Kwon; Hirata, Yuushou
  • Nature Materials, Vol. 16, Issue 12
  • DOI: 10.1038/nmat4990

Spin-Orbit-Torque Efficiency in Compensated Ferrimagnetic Cobalt-Terbium Alloys
journal, November 2016


Origin of the spin Seebeck effect in compensated ferrimagnets
journal, February 2016

  • Geprägs, Stephan; Kehlberger, Andreas; Coletta, Francesco Della
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms10452

Spin Hall magnetoresistance in a canted ferrimagnet
journal, September 2016


Proximity-Induced Ferromagnetism in Graphene Revealed by the Anomalous Hall Effect
journal, January 2015


Current-induced switching in a magnetic insulator
journal, November 2016

  • Avci, Can Onur; Quindeau, Andy; Pai, Chi-Feng
  • Nature Materials, Vol. 16, Issue 3
  • DOI: 10.1038/nmat4812

Above 400-K robust perpendicular ferromagnetic phase in a topological insulator
journal, June 2017


Role of dimensional crossover on spin-orbit torque efficiency in magnetic insulator thin films
journal, September 2018


Spin caloritronics
journal, April 2012

  • Bauer, Gerrit E. W.; Saitoh, Eiji; van Wees, Bart J.
  • Nature Materials, Vol. 11, Issue 5
  • DOI: 10.1038/nmat3301

Anomalous Hall hysteresis in T m 3 F e 5 O 12 / Pt with strain-induced perpendicular magnetic anisotropy
journal, October 2016


Enhanced dc spin pumping into a fluctuating ferromagnet near T C
journal, May 2014


Quantitative Temperature Dependence of Longitudinal Spin Seebeck Effect at High Temperatures
journal, November 2014


Reduced spin-Hall effects from magnetic proximity
journal, March 2015


Tm 3 Fe 5 O 12 /Pt Heterostructures with Perpendicular Magnetic Anisotropy for Spintronic Applications
journal, December 2016

  • Quindeau, Andy; Avci, Can O.; Liu, Wenqing
  • Advanced Electronic Materials, Vol. 3, Issue 1
  • DOI: 10.1002/aelm.201600376

Magnetic Study of the Heavier Rare-Earth Iron Garnets
journal, February 1965


Systematics of the Induced Magnetic Moments in 5 d Layers and the Violation of the Third Hund's Rule
journal, October 2001


Systematic theoretical study of the spin and orbital magnetic moments of 4 d and 5 d interfaces with Fe films
journal, March 2003


Anomalous Nernst and Hall effects in magnetized platinum and palladium
journal, June 2014


Magnetic proximity effect in Pt / CoFe 2 O 4 bilayers
journal, January 2018


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


Structure and magnetism of Pd in Pd/Fe multilayers studied by x-ray magnetic circular dichroism at the Pd L 2 , 3 sedges
journal, February 1997


Anomalous Hall effect in Pt/Tb3Fe5O12 heterostructure: Effect of compensation point
journal, December 2018


Magnetism and spin transport in rare-earth-rich epitaxial terbium and europium iron garnet films
journal, September 2018


Phase-sensitive specular neutron reflectometry for imaging the nanometer scale composition depth profile of thin-film materials
journal, February 2012

  • Kirby, B. J.; Kienzle, P. A.; Maranville, B. B.
  • Current Opinion in Colloid & Interface Science, Vol. 17, Issue 1
  • DOI: 10.1016/j.cocis.2011.11.001