Enhanced room-temperature spin Seebeck effect in a YIG/C60/Pt layered heterostructure
Abstract
We report on large enhancement of the longitudinal spin Seebeck effect (LSSE) in the Y3Fe5O12 (YIG)/Pt system at room temperature due to the addition of a thin layer of organic semiconductor (C60) in between the YIG and the Pt. LSSE measurements show that the LSSE voltage increases significantly, from the initial value of 150 nV for the YIG/Pt structure to 240 nV for the YIG/C60(5nm)/Pt structure. Radio-frequency transverse susceptibility experiments reveal a significant decrease in the surface perpendicular magnetic anisotropy (PMA) of the YIG film when C60 is deposited on it. These results suggest that the LSSE enhancement may be attributed to increased spin mixing conductance, the decreased PMA, and the large spin diffusion length of C60.
- Authors:
-
- Univ. of South Florida, Tampa, FL (United States)
- Univ. of Georgia, Athens, GA (United States)
- Colorado State Univ., Fort Collins, CO (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)
- OSTI Identifier:
- 1470122
- Alternate Identifier(s):
- OSTI ID: 1413028
- Grant/Contract Number:
- SC0012670
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- AIP Advances
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 5; 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 2158-3226
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Phonons; thermal conductivity; thermoelectric; spin dynamics; spintronics
Citation Formats
Das, R., Kalappattil, V., Geng, R., Luong, H., Pham, M., Nguyen, T., Liu, Tao, Wu, Mingzhong, Phan, M. H., and Srikanth, H. Enhanced room-temperature spin Seebeck effect in a YIG/C60/Pt layered heterostructure. United States: N. p., 2017.
Web. doi:10.1063/1.5007233.
Das, R., Kalappattil, V., Geng, R., Luong, H., Pham, M., Nguyen, T., Liu, Tao, Wu, Mingzhong, Phan, M. H., & Srikanth, H. Enhanced room-temperature spin Seebeck effect in a YIG/C60/Pt layered heterostructure. United States. https://doi.org/10.1063/1.5007233
Das, R., Kalappattil, V., Geng, R., Luong, H., Pham, M., Nguyen, T., Liu, Tao, Wu, Mingzhong, Phan, M. H., and Srikanth, H. 2017.
"Enhanced room-temperature spin Seebeck effect in a YIG/C60/Pt layered heterostructure". United States. https://doi.org/10.1063/1.5007233. https://www.osti.gov/servlets/purl/1470122.
@article{osti_1470122,
title = {Enhanced room-temperature spin Seebeck effect in a YIG/C60/Pt layered heterostructure},
author = {Das, R. and Kalappattil, V. and Geng, R. and Luong, H. and Pham, M. and Nguyen, T. and Liu, Tao and Wu, Mingzhong and Phan, M. H. and Srikanth, H.},
abstractNote = {We report on large enhancement of the longitudinal spin Seebeck effect (LSSE) in the Y3Fe5O12 (YIG)/Pt system at room temperature due to the addition of a thin layer of organic semiconductor (C60) in between the YIG and the Pt. LSSE measurements show that the LSSE voltage increases significantly, from the initial value of 150 nV for the YIG/Pt structure to 240 nV for the YIG/C60(5nm)/Pt structure. Radio-frequency transverse susceptibility experiments reveal a significant decrease in the surface perpendicular magnetic anisotropy (PMA) of the YIG film when C60 is deposited on it. These results suggest that the LSSE enhancement may be attributed to increased spin mixing conductance, the decreased PMA, and the large spin diffusion length of C60.},
doi = {10.1063/1.5007233},
url = {https://www.osti.gov/biblio/1470122},
journal = {AIP Advances},
issn = {2158-3226},
number = 5,
volume = 8,
place = {United States},
year = {Tue Dec 12 00:00:00 EST 2017},
month = {Tue Dec 12 00:00:00 EST 2017}
}
Figures / Tables:
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Figures / Tables found in this record: