DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Damping Enhancement in Coherent Ferrite–Insulating-Paramagnet Bilayers

Journal Article · · Physical Review Applied
 [1]; ORCiD logo [2];  [3];  [4];  [4];  [4];  [5];  [1]; ORCiD logo [6]
  1. Stanford Univ., CA (United States)
  2. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Neutron Research
  3. Univ. of Tennessee, Knoxville, TN (United States)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS); Cornell High Energy Synchrotron Source, Ithaca, NY (United States)
  6. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

High-quality epitaxial ferrites, such as low-damping Mg Al -ferrite (MAFO), are promising nanoscale building blocks for all-oxide heterostructures driven by pure spin current. However, the impact of oxide interfaces on spin dynamics in such heterostructures remains an open question. Here in this paper, we investigate the spin dynamics and chemical and magnetic depth profiles of 15-nm-thick MAFO coherently interfaced with an isostructural 1–8-nm-thick overlayer of paramagnetic CoCr2O4 (CCO) as an all-oxide model system. Compared to MAFO without an overlayer, effective Gilbert damping in MAFO/CCO is enhanced by a factor of > 3, irrespective of the CCO overlayer thickness. We attribute this damping enhancement to spin scattering at the approximately 1-nm-thick chemically disordered layer at the MAFO-CCO interface, rather than spin pumping or proximity-induced magnetism. Our results indicate that damping in ferrite-based heterostructures is strongly influenced by interfacial chemical disorder, even if the thickness of the disordered layer is a small fraction of the ferrite thickness.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); US Department of the Navy, Office of Naval Research (ONR); National Science Foundation (NSF)
Grant/Contract Number:
AC02-05CH11231; N00014-15-1-0045; SC0008505
OSTI ID:
1631611
Journal Information:
Physical Review Applied, Vol. 12, Issue 5; ISSN 2331-7019
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

References (68)

Magnon Valve Effect between Two Magnetic Insulators journal March 2018
Polarized neutron reflectometry study of an exchange biased Fe 3 O 4 /NiO multilayer journal September 1996
Spin-orbit torque and spin pumping in YIG/Pt with interfacial insertion layers journal April 2018
Spin Seebeck effect through antiferromagnetic NiO journal July 2016
Spin colossal magnetoresistance in an antiferromagnetic insulator journal May 2018
Spin-current probe for phase transition in an insulator journal August 2016
Opportunities at the Frontiers of Spintronics journal October 2015
Yttrium Iron Garnet Thin Films with Very Low Damping Obtained by Recrystallization of Amorphous Material journal February 2016
Superparamagnetic behavior of structural domains in epitaxial ultrathin magnetite films journal April 1998
Simultaneous spin pumping and spin Seebeck experiments with thermal control of the magnetic damping in bilayers of yttrium iron garnet and heavy metals: YIG/Pt and YIG/IrMn journal April 2017
Inverse spin Hall effect in nanometer-thick yttrium iron garnet/Pt system journal August 2013
Magnetic properties of spin waves in thin yttrium iron garnet films journal February 2017
The Magnetoelastic Ion: Friend and Foe to Microwaves journal February 2011
Conduction of spin currents through insulating antiferromagnetic oxides journal December 2014
Exquisite growth control and magnetic properties of yttrium iron garnet thin films journal March 2016
Anti-damping spin transfer torque through epitaxial nickel oxide journal April 2015
Strain-induced magnetic anisotropy in epitaxial thin films of the spinel CoCr 2 O 4 journal December 2015
Magnetic properties of epitaxial Fe 3 O 4 films with various crystal orientations and tunnel magnetoresistance effect at room temperature journal September 2014
Spin-polarized conduction in oxide magnetic tunnel junctions with magnetic and nonmagnetic insulating barrier layers journal October 2006
Anti-phase domains and magnetism in epitaxial magnetite layers journal April 1999
Y 3 Fe 5 O 12 spin pumping for quantitative understanding of pure spin transport and spin Hall effect in a broad range of materials (invited) journal May 2015
Spin pumping and magnetization dynamics in metallic multilayers journal December 2002
Phase-sensitive specular neutron reflectometry for imaging the nanometer scale composition depth profile of thin-film materials journal February 2012
Magnon spintronics journal June 2015
Pseudomorphic Yttrium Iron Garnet Thin Films With Low Damping and Inhomogeneous Linewidth Broadening journal January 2015
Spin Pumping at the Magnetic Insulator (YIG)/Normal Metal (Au) Interfaces journal August 2011
Damping in Yttrium Iron Garnet Nanoscale Films Capped by Platinum journal September 2013
On the construction of an Fe3O4-based all-oxide spin valve journal March 2000
Coexistence of Low Damping and Strong Magnetoelastic Coupling in Epitaxial Spinel Ferrite Thin Films journal July 2017
Spin injection and spin transport in paramagnetic insulators journal February 2016
Origin of the Anomalous Magnetic Behavior in Single Crystal Fe 3 O 4 Films journal December 1997
Ultralow Damping in Nanometer-Thick Epitaxial Spinel Ferrite Thin Films journal May 2018
Antiferromagnonic Spin Transport from Y 3 Fe 5 O 12 into NiO journal August 2014
Magnetic interface anisotropy of MBE-grown ultra-thin (001) Fe3O4 layers journal July 1996
Diffusive magnonic spin transport in antiferromagnetic insulators journal February 2016
A new spin for oxide interfaces journal April 2018
Spin current transmission in polycrystalline NiO films journal June 2018
Interface Physics in Complex Oxide Heterostructures journal March 2011
Antiferromagnet-mediated spin transfer between a metal and a ferromagnet journal July 2015
Magnetism at spinel thin film interfaces probed through soft X-ray spectroscopy techniques journal October 2010
Enhancement of Thermally Injected Spin Current through an Antiferromagnetic Insulator journal May 2016
Ultrathin interfacial layer with suppressed room temperature magnetization in magnesium aluminum ferrite thin films journal September 2019
Efficient spin current generation in low-damping Mg(Al, Fe) 2 O 4 thin films journal September 2019
Spin pumping in the nonlinear dynamic regime of a Pt/Y 3 Fe 5 O 12 heterostructure journal May 2016
Spin Hall effects journal October 2015
Thickness and power dependence of the spin-pumping effect in Y 3 Fe 5 O 12 /Pt heterostructures measured by the inverse spin Hall effect journal April 2015
Nanometer-Thick Yttrium Iron Garnet Films With Extremely Low Damping journal January 2014
Emergent phenomena at oxide interfaces journal January 2012
Scaling of Spin Hall Angle in 3d, 4d, and 5d Metals from Y 3 Fe 5 O 12 /Metal Spin Pumping journal May 2014
Paramagnetic Spin Pumping journal December 2014
Spin current generation from sputtered Y 3 Fe 5 O 12 films journal October 2014
Bulk Single Crystal-Like Structural and Magnetic Characteristics of Epitaxial Spinel Ferrite Thin Films with Elimination of Antiphase Boundaries journal June 2017
Large room-temperature inverse magnetoresistance in tunnel junctions with a Fe3O4 electrode journal March 2008
Multiferroics progress and prospects in thin films journal January 2007
Polarized neutron reflectometry studies of magnetic oxidic Fe3O4/NiO and Fe3O4/CoO multilayers journal April 1996
Epitaxial Spinel Ferrite Thin Films journal August 2001
Spin pumping damping and magnetic proximity effect in Pd and Pt spin-sink layers journal July 2016
Magnon detection using a ferroic collinear multilayer spin valve text January 2018
Effective Spin-Mixing Conductance of Heavy-Metal–Ferromagnet Interfaces journal August 2019
Transformation of spin current by antiferromagnetic insulators journal June 2016
Magnon detection using a ferroic collinear multilayer spin valve journal March 2018
Pulsed laser deposition of epitaxial yttrium iron garnet films with low Gilbert damping and bulk-like magnetization journal October 2014
Magnetic properties of spin waves in thin yttrium iron garnet films text January 2017
Y3Fe5O12 Spin Pumping for Quantitative Understanding of Pure Spin Transport and Spin Hall Effect in a Broad Range of Materials text January 2014
Spin current generation from sputtered Y3Fe5O12 films text January 2014
Transformation of spin current by antiferromagnetic insulators text January 2015
Spin-orbit torque and spin pumping in YIG/Pt with interfacial insertion layers text January 2018
Spin colossal magnetoresistance in an antiferromagnetic insulator text January 2018