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Title: Large spin-orbit torque observed in epitaxial SrIrO 3 thin films

Abstract

Semimetallic iridate compound SrIrO 3 epitaxial films have been deposited by off-axis sputtering, exhibiting excellent crystalline quality as well as smooth surfaces. By performing second-harmonic Hall measurements on a series of SrIrO 3/Co 1-xTb x bilayers, we quantitatively determined the spin-to-charge interconversion efficiency θ SH of SrIrO 3, and discovered a systematic temperature and film thickness dependent evolution behavior. Notably, the measured |θ SH| reaches a remarkably large number of ~-1.1 at room temperature, which is significantly larger than the value of 5d transition metals and comparable to the values reported in some topological material systems. Finally, our findings are further corroborated by ferromagnetic resonance-driven spin pumping study in SrIrO 3/Py bilayers, highlighting the significant opportunities offered by the iridate compounds in designing next-generation energy-efficient multifunctional spin Hall devices.

Authors:
 [1];  [2];  [3];  [3];  [3];  [3];  [2];  [3]
  1. Massachusetts Inst. of Technology, Cambridge, MA (United States); Univ. of California, San Diego, La Jolla, CA (United States)
  2. The Ohio State Univ., Columbus, OH (United States)
  3. Massachusetts Inst. of Technology, Cambridge, MA (United States)
Publication Date:
Research Org.:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
OSTI Identifier:
1594120
Report Number(s):
OSU-01304
Journal ID: ISSN 0003-6951
Grant/Contract Number:  
SC0001304; DMR-1420451
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 23; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Spin-orbit coupling; SrIrO3 epitaxial films

Citation Formats

Wang, Hailong, Meng, Keng-Yuan, Zhang, Pengxiang, Hou, Justin T., Finley, Joseph, Han, Jiahao, Yang, Fengyuan, and Liu, Luqiao. Large spin-orbit torque observed in epitaxial SrIrO3 thin films. United States: N. p., 2019. Web. doi:10.1063/1.5097699.
Wang, Hailong, Meng, Keng-Yuan, Zhang, Pengxiang, Hou, Justin T., Finley, Joseph, Han, Jiahao, Yang, Fengyuan, & Liu, Luqiao. Large spin-orbit torque observed in epitaxial SrIrO3 thin films. United States. doi:10.1063/1.5097699.
Wang, Hailong, Meng, Keng-Yuan, Zhang, Pengxiang, Hou, Justin T., Finley, Joseph, Han, Jiahao, Yang, Fengyuan, and Liu, Luqiao. Thu . "Large spin-orbit torque observed in epitaxial SrIrO3 thin films". United States. doi:10.1063/1.5097699.
@article{osti_1594120,
title = {Large spin-orbit torque observed in epitaxial SrIrO3 thin films},
author = {Wang, Hailong and Meng, Keng-Yuan and Zhang, Pengxiang and Hou, Justin T. and Finley, Joseph and Han, Jiahao and Yang, Fengyuan and Liu, Luqiao},
abstractNote = {Semimetallic iridate compound SrIrO3 epitaxial films have been deposited by off-axis sputtering, exhibiting excellent crystalline quality as well as smooth surfaces. By performing second-harmonic Hall measurements on a series of SrIrO3/Co1-xTbx bilayers, we quantitatively determined the spin-to-charge interconversion efficiency θSH of SrIrO3, and discovered a systematic temperature and film thickness dependent evolution behavior. Notably, the measured |θSH| reaches a remarkably large number of ~-1.1 at room temperature, which is significantly larger than the value of 5d transition metals and comparable to the values reported in some topological material systems. Finally, our findings are further corroborated by ferromagnetic resonance-driven spin pumping study in SrIrO3/Py bilayers, highlighting the significant opportunities offered by the iridate compounds in designing next-generation energy-efficient multifunctional spin Hall devices.},
doi = {10.1063/1.5097699},
journal = {Applied Physics Letters},
number = 23,
volume = 114,
place = {United States},
year = {2019},
month = {6}
}

Journal Article:
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Works referenced in this record:

Interplay of Spin-Orbit Interactions, Dimensionality, and Octahedral Rotations in Semimetallic SrIrO 3
journal, January 2015


Spin Pumping at the Magnetic Insulator (YIG)/Normal Metal (Au) Interfaces
journal, August 2011


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


Topological insulators and superconductors
journal, October 2011


Anomalous Current-Induced Spin Torques in Ferrimagnets near Compensation
journal, April 2017


Weyl and Dirac semimetals in three-dimensional solids
journal, January 2018


Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in ( La 1 x Sr x MnO 3 ) / ( SrIrO 3 ) Superlattices
journal, August 2017


Electronic and magnetic tunability of Sr 2 CrReO 6 films by growth-mediated oxygen modulation
journal, January 2013

  • Hauser, A. J.; Lucy, J. M.; Wang, H. L.
  • Applied Physics Letters, Vol. 102, Issue 3
  • DOI: 10.1063/1.4789505

Spin-orbit torques in Ta/Tb x Co 100-x ferrimagnetic alloy films with bulk perpendicular magnetic anisotropy
journal, December 2016

  • Ueda, Kohei; Mann, Maxwell; Pai, Chi-Feng
  • Applied Physics Letters, Vol. 109, Issue 23
  • DOI: 10.1063/1.4971393

Current-driven dynamics of chiral ferromagnetic domain walls
journal, June 2013

  • Emori, Satoru; Bauer, Uwe; Ahn, Sung-Min
  • Nature Materials, Vol. 12, Issue 7
  • DOI: 10.1038/nmat3675

Magnetization switching through giant spin–orbit torque in a magnetically doped topological insulator heterostructure
journal, April 2014

  • Fan, Yabin; Upadhyaya, Pramey; Kou, Xufeng
  • Nature Materials, Vol. 13, Issue 7
  • DOI: 10.1038/nmat3973

Self-consistent determination of spin Hall angles in selected 5 d metals by thermal spin injection
journal, April 2014


Tilting of the spin orientation induced by Rashba effect in ferromagnetic metal layer
journal, October 2010

  • Pi, Ung Hwan; Won Kim, Kee; Bae, Ji Young
  • Applied Physics Letters, Vol. 97, Issue 16
  • DOI: 10.1063/1.3502596

Spin Hall Effects in Metallic Antiferromagnets
journal, November 2014


Determination of spin torque efficiencies in heterostructures with perpendicular magnetic anisotropy
journal, April 2016


Quantum Spin Hall Insulator State in HgTe Quantum Wells
journal, November 2007


Spin-orbit torques in ferrimagnetic GdFeCo alloys
journal, September 2016

  • Roschewsky, Niklas; Matsumura, Tomoya; Cheema, Suraj
  • Applied Physics Letters, Vol. 109, Issue 11
  • DOI: 10.1063/1.4962812

Intrinsic spin Hall effect and orbital Hall effect in 4 d and 5 d transition metals
journal, April 2008


FMR-driven spin pumping in Y 3 Fe 5 O 12 -based structures
journal, May 2018

  • Yang, Fengyuan; Chris Hammel, P.
  • Journal of Physics D: Applied Physics, Vol. 51, Issue 25
  • DOI: 10.1088/1361-6463/aac249

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


5d iridium oxide as a material for spin-current detection
journal, December 2013

  • Fujiwara, Kohei; Fukuma, Yasuhiro; Matsuno, Jobu
  • Nature Communications, Vol. 4, Issue 1
  • DOI: 10.1038/ncomms3893

Spin Hall effects
journal, October 2015

  • Sinova, Jairo; Valenzuela, Sergio O.; Wunderlich, J.
  • Reviews of Modern Physics, Vol. 87, Issue 4
  • DOI: 10.1103/RevModPhys.87.1213

Detection and quantification of inverse spin Hall effect from spin pumping in permalloy/normal metal bilayers
journal, December 2010


Spin conversion on the nanoscale
journal, July 2017

  • Otani, YoshiChika; Shiraishi, Masashi; Oiwa, Akira
  • Nature Physics, Vol. 13, Issue 9
  • DOI: 10.1038/nphys4192

Theory of Large Intrinsic Spin Hall Effect in Iridate Semimetals
journal, May 2018


Layer thickness dependence of the current-induced effective field vector in Ta|CoFeB|MgO
journal, December 2012

  • Kim, Junyeon; Sinha, Jaivardhan; Hayashi, Masamitsu
  • Nature Materials, Vol. 12, Issue 3
  • DOI: 10.1038/nmat3522

Symmetry and magnitude of spin–orbit torques in ferromagnetic heterostructures
journal, July 2013

  • Garello, Kevin; Miron, Ioan Mihai; Avci, Can Onur
  • Nature Nanotechnology, Vol. 8, Issue 8
  • DOI: 10.1038/nnano.2013.145

Probing the Spin Pumping Mechanism: Exchange Coupling with Exponential Decay in Y 3 Fe 5 O 12 / Barrier / Pt Heterostructures
journal, December 2013


Effective field analysis using the full angular spin-orbit torque magnetometry dependence
journal, June 2017


Conversion of spin current into charge current at room temperature: Inverse spin-Hall effect
journal, May 2006

  • Saitoh, E.; Ueda, M.; Miyajima, H.
  • Applied Physics Letters, Vol. 88, Issue 18
  • DOI: 10.1063/1.2199473

Strain-induced nonsymmorphic symmetry breaking and removal of Dirac semimetallic nodal line in an orthoperovskite iridate
journal, February 2016


Scaling Behavior of the Spin Pumping Effect in Ferromagnet-Platinum Bilayers
journal, July 2011


Determination of the Pt spin diffusion length by spin-pumping and spin Hall effect
journal, December 2013

  • Zhang, Wei; Vlaminck, Vincent; Pearson, John E.
  • Applied Physics Letters, Vol. 103, Issue 24
  • DOI: 10.1063/1.4848102

Indication of intrinsic spin Hall effect in 4 d and 5 d transition metals
journal, May 2011


Spin Hall Effect
journal, August 1999


Spin-Orbit Semimetal SrIrO 3 in the Two-Dimensional Limit
journal, December 2017


Control of Magnetocrystalline Anisotropy by Epitaxial Strain in Double Perovskite Sr 2 FeMoO 6 Films
journal, April 2013


Anomalous Hall effect
journal, May 2010