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Title: Anomalous Hall hysteresis in Tm3Fe5O12/Pt with strain-induced perpendicular magnetic anisotropy

Journal Article · · Physical Review B
 [1];  [2];  [1];  [1];  [2];  [1]
  1. Univ. of California, Riverside, CA (United States)
  2. Univ. of California, San Diego, CA (United States)

Here we demonstrate robust interface strain-induced perpendicular magnetic anisotropy in atomically flat ferrimagnetic insulator Tm3Fe5O12 (TIG) films grown with pulsed laser deposition on a substituted Gd3Ga5O12 substrate which maximizes the tensile strain at the interface. In bilayers consisting of Pt and TIG, we observe large squared Hall hysteresis loops over a wide range of thicknesses of Pt at room temperature. When a thin Cu layer is inserted between Pt and TIG, the Hall hysteresis magnitude decays but stays finite as the thickness of Cu increases up to 5 nm. However, if the Cu layer is placed atop Pt instead, the Hall hysteresis magnitude is consistently larger than when the Cu layer with the same thickness is inserted in between for all Cu thicknesses. These results suggest that both the proximity-induced ferromagnetism and spin current contribute to the anomalous Hall effect.

Research Organization:
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:
1389002
Alternate ID(s):
OSTI ID: 1328216
Journal Information:
Physical Review B, Vol. 94, Issue 14; Related Information: SHINES partners with University of California, Riverside (lead); Arizona State University; Colorado State University; Johns Hopkins University; University of California Irvine; University of California Los Angeles; University of Texas at Austin; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 84 works
Citation information provided by
Web of Science

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Role of dimensional crossover on spin-orbit torque efficiency in magnetic insulator thin films journal September 2018
High-quality thulium iron garnet films with tunable perpendicular magnetic anisotropy by off-axis sputtering – correlation between magnetic properties and film strain journal July 2018
Topological Hall effect at above room temperature in heterostructures composed of a magnetic insulator and a heavy metal journal May 2019
Epitaxial growth of Y 3 Fe 5 O 12 thin films with perpendicular magnetic anisotropy journal May 2017
Fast switching and signature of efficient domain wall motion driven by spin-orbit torques in a perpendicular anisotropy magnetic insulator/Pt bilayer journal August 2017
High-quality single-crystal thulium iron garnet films with perpendicular magnetic anisotropy by off-axis sputtering journal May 2018
Pseudomorphic spinel ferrite films with perpendicular anisotropy and low damping journal August 2018
Perpendicular magnetic anisotropy and spin mixing conductance in polycrystalline europium iron garnet thin films journal February 2019
Systematic control of strain-induced perpendicular magnetic anisotropy in epitaxial europium and terbium iron garnet thin films journal December 2018
Direct observation of proximity-induced magnetism and spin reorientation in topological insulator on a ferrimagnetic oxide journal February 2019
Tunable perpendicular magnetic anisotropy in epitaxial Y 3 Fe 5 O 12 films journal April 2019
Spin wave propagation in ultrathin magnetic insulators with perpendicular magnetic anisotropy journal May 2019
Ferromagnetic resonance of perpendicularly magnetized Tm 3 Fe 5 O 12 /Pt heterostructures journal October 2019
Terahertz response of gadolinium gallium garnet (GGG) and gadolinium scandium gallium garnet (SGGG) journal January 2020
Interfacial Dzyaloshinskii-Moriya interaction between ferromagnetic insulator and heavy metal journal February 2020
Pure spin currents in magnetically ordered insulator/normal metal heterostructures journal July 2018
Synthetic Antiferromagnetic Coupling Between Ultrathin Insulating Garnets journal October 2018
Evidence for exchange Dirac gap in magnetotransport of topological insulator–magnetic insulator heterostructures journal July 2019
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Deficiency of the Bulk Spin Hall Effect Model for Spin-Orbit Torques in Magnetic Insulator/Heavy Metal Heterostructures text January 2017
Above 400 K Robust Perpendicular Ferromagnetic Phase in a Topological Insulator text January 2017
Role of dimensional crossover on spin-orbit torque efficiency in magnetic insulator thin films text January 2017
Synthetic antiferromagnetic coupling between ultra-thin insulating garnets text January 2018
Systematic Control of Strain-Induced Perpendicular Magnetic Anisotropy in Epitaxial Europium and Terbium Iron Garnets Thin Films text January 2018