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Title: Platinum/yttrium iron garnet inverted structures for spin current transport

Abstract

30-80 nm thick yttrium iron garnet (YIG) films are grown by pulsed laser deposition on a 5 nm thick sputtered Pt atop gadolinium gallium garnet substrate (GGG) (110). Upon post-growth rapid thermal annealing, single crystal YIG(110) emerges as if it were epitaxially grown on GGG(110) despite the presence of the intermediate Pt film. The YIG surface shows atomic steps with the root-mean-square roughness of 0.12 nm on flat terraces. Both Pt/YIG and GGG/Pt interfaces are atomically sharp. The resulting YIG(110) films show clear in-plane uniaxial magnetic anisotropy with a well-defined easy axis along $$\langle$$001>$$\rangle$$ and a peak-to-peak ferromagnetic resonance linewidth of 7.5 Oe at 9.32 GHz, similar to YIG epitaxially grown on GGG. Both spin Hall magnetoresistance and longitudinal spin Seebeck effects in the inverted bilayers indicate excellent Pt/YIG interface quality.

Authors:
 [1];  [1];  [1];  [1];  [2];  [3];  [1]
  1. Univ. of California, Riverside, CA (United States). Dept. of Physics and Astronomy and Energy Frontier Research Center (EFRC)
  2. Univ. of California, Irvine, CA (United States)
  3. Univ. of California, Riverside, CA (United States)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1387864
Alternate Identifier(s):
OSTI ID: 1256785
Grant/Contract Number:  
SC0012670
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 108; Journal Issue: 24; 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; 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; 36 MATERIALS SCIENCE; phonons; thermal conductivity; thermoelectric; spin dynamics; spintronics

Citation Formats

Aldosary, Mohammed, Li, Junxue, Tang, Chi, Xu, Yadong, Zheng, Jian-Guo, Bozhilov, Krassimir N., and Shi, Jing. Platinum/yttrium iron garnet inverted structures for spin current transport. United States: N. p., 2016. Web. doi:10.1063/1.4953454.
Aldosary, Mohammed, Li, Junxue, Tang, Chi, Xu, Yadong, Zheng, Jian-Guo, Bozhilov, Krassimir N., & Shi, Jing. Platinum/yttrium iron garnet inverted structures for spin current transport. United States. doi:10.1063/1.4953454.
Aldosary, Mohammed, Li, Junxue, Tang, Chi, Xu, Yadong, Zheng, Jian-Guo, Bozhilov, Krassimir N., and Shi, Jing. Mon . "Platinum/yttrium iron garnet inverted structures for spin current transport". United States. doi:10.1063/1.4953454. https://www.osti.gov/servlets/purl/1387864.
@article{osti_1387864,
title = {Platinum/yttrium iron garnet inverted structures for spin current transport},
author = {Aldosary, Mohammed and Li, Junxue and Tang, Chi and Xu, Yadong and Zheng, Jian-Guo and Bozhilov, Krassimir N. and Shi, Jing},
abstractNote = {30-80 nm thick yttrium iron garnet (YIG) films are grown by pulsed laser deposition on a 5 nm thick sputtered Pt atop gadolinium gallium garnet substrate (GGG) (110). Upon post-growth rapid thermal annealing, single crystal YIG(110) emerges as if it were epitaxially grown on GGG(110) despite the presence of the intermediate Pt film. The YIG surface shows atomic steps with the root-mean-square roughness of 0.12 nm on flat terraces. Both Pt/YIG and GGG/Pt interfaces are atomically sharp. The resulting YIG(110) films show clear in-plane uniaxial magnetic anisotropy with a well-defined easy axis along $\langle$001>$\rangle$ and a peak-to-peak ferromagnetic resonance linewidth of 7.5 Oe at 9.32 GHz, similar to YIG epitaxially grown on GGG. Both spin Hall magnetoresistance and longitudinal spin Seebeck effects in the inverted bilayers indicate excellent Pt/YIG interface quality.},
doi = {10.1063/1.4953454},
journal = {Applied Physics Letters},
number = 24,
volume = 108,
place = {United States},
year = {2016},
month = {6}
}

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Cited by: 5 works
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