Enhanced spin pumping at yttrium iron garnet/Au interfaces
Abstract
Spin injection across the ferrimagnetic insulator yttrium iron garnet (YIG)/normal metal Au interface was studied using ferromagnetic resonance. The spin mixing conductance was determined by comparing the Gilbert damping parameter {alpha} in YIG/Au and YIG/Au/Fe heterostructures. The main purpose of this study was to correlate the spin pumping efficiency with chemical modifications of the YIG film surface using in situ etching and deposition techniques. By means of Ar{sup +} ion beam etching, one is able to increase the spin mixing conductance at the YIG/Au interface by a factor of 5 compared to the untreated YIG/Au interface.
- Authors:
-
- Physics Department, Simon Fraser University, 8888 University Dr., Burnaby, British Columbia V5A 1S6 (Canada)
- Physics Department, Colorado State University, Fort Collins, Colorado 80523 (United States)
- Publication Date:
- OSTI Identifier:
- 22025452
- Resource Type:
- Journal Article
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 100; Journal Issue: 9; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; ARGON IONS; DAMPING; DEPOSITION; ELECTRIC CONDUCTIVITY; ETCHING; FERRIMAGNETIC MATERIALS; FERRITE GARNETS; FERROMAGNETIC RESONANCE; GOLD; GOLD IONS; INTERFACES; ION BEAMS; IRON; IRON OXIDES; SPIN; SURFACES; THIN FILMS; YTTRIUM COMPOUNDS
Citation Formats
Burrowes, C, Heinrich, B, Kardasz, B, Montoya, E A, Girt, E, Yiyan, Sun, Song, Young-Yeal, and Mingzhong, Wu. Enhanced spin pumping at yttrium iron garnet/Au interfaces. United States: N. p., 2012.
Web. doi:10.1063/1.3690918.
Burrowes, C, Heinrich, B, Kardasz, B, Montoya, E A, Girt, E, Yiyan, Sun, Song, Young-Yeal, & Mingzhong, Wu. Enhanced spin pumping at yttrium iron garnet/Au interfaces. United States. https://doi.org/10.1063/1.3690918
Burrowes, C, Heinrich, B, Kardasz, B, Montoya, E A, Girt, E, Yiyan, Sun, Song, Young-Yeal, and Mingzhong, Wu. 2012.
"Enhanced spin pumping at yttrium iron garnet/Au interfaces". United States. https://doi.org/10.1063/1.3690918.
@article{osti_22025452,
title = {Enhanced spin pumping at yttrium iron garnet/Au interfaces},
author = {Burrowes, C and Heinrich, B and Kardasz, B and Montoya, E A and Girt, E and Yiyan, Sun and Song, Young-Yeal and Mingzhong, Wu},
abstractNote = {Spin injection across the ferrimagnetic insulator yttrium iron garnet (YIG)/normal metal Au interface was studied using ferromagnetic resonance. The spin mixing conductance was determined by comparing the Gilbert damping parameter {alpha} in YIG/Au and YIG/Au/Fe heterostructures. The main purpose of this study was to correlate the spin pumping efficiency with chemical modifications of the YIG film surface using in situ etching and deposition techniques. By means of Ar{sup +} ion beam etching, one is able to increase the spin mixing conductance at the YIG/Au interface by a factor of 5 compared to the untreated YIG/Au interface.},
doi = {10.1063/1.3690918},
url = {https://www.osti.gov/biblio/22025452},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 9,
volume = 100,
place = {United States},
year = {Mon Feb 27 00:00:00 EST 2012},
month = {Mon Feb 27 00:00:00 EST 2012}
}
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