High power all-metal spin torque oscillator using full Heusler Co{sub 2}(Fe,Mn)Si
Abstract
We showed the high rf power (P{sub out}) emission from an all-metal spin torque oscillator (STO) with a Co{sub 2}Fe{sub 0.4}Mn{sub 0.6}Si (CFMS)/Ag/CFMS giant magnetoresistance (GMR) stack, which was attributable to the large GMR effect thanks to the highly spin-polarized CFMS. The oscillation spectra were measured by varying the magnetic field direction, and the perpendicular magnetic field was effective to increase P{sub out} and the Q factor. We simultaneously achieved a high output efficiency of 0.013%, a high Q of 1124, and large frequency tunability. CFMS-based all-metal STO is promising for overcoming the difficulties that conventional STOs are confronted with.
- Authors:
-
- Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
- Spintronics Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568 (Japan)
- Publication Date:
- OSTI Identifier:
- 22311024
- Resource Type:
- Journal Article
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 105; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; 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; COBALT COMPOUNDS; EFFICIENCY; EMISSION; IRON COMPOUNDS; MAGNETIC FIELDS; MAGNETORESISTANCE; MANGANESE COMPOUNDS; METALS; OSCILLATIONS; OSCILLATORS; RF SYSTEMS; SILICON COMPOUNDS; SILVER; SPECTRA; SPIN; SPIN ORIENTATION
Citation Formats
Seki, Takeshi, Sakuraba, Yuya, Ueda, Masaki, Okura, Ryo, Takanashi, Koki, Arai, Hiroko, and Imamura, Hiroshi. High power all-metal spin torque oscillator using full Heusler Co{sub 2}(Fe,Mn)Si. United States: N. p., 2014.
Web. doi:10.1063/1.4895024.
Seki, Takeshi, Sakuraba, Yuya, Ueda, Masaki, Okura, Ryo, Takanashi, Koki, Arai, Hiroko, & Imamura, Hiroshi. High power all-metal spin torque oscillator using full Heusler Co{sub 2}(Fe,Mn)Si. United States. https://doi.org/10.1063/1.4895024
Seki, Takeshi, Sakuraba, Yuya, Ueda, Masaki, Okura, Ryo, Takanashi, Koki, Arai, Hiroko, and Imamura, Hiroshi. 2014.
"High power all-metal spin torque oscillator using full Heusler Co{sub 2}(Fe,Mn)Si". United States. https://doi.org/10.1063/1.4895024.
@article{osti_22311024,
title = {High power all-metal spin torque oscillator using full Heusler Co{sub 2}(Fe,Mn)Si},
author = {Seki, Takeshi and Sakuraba, Yuya and Ueda, Masaki and Okura, Ryo and Takanashi, Koki and Arai, Hiroko and Imamura, Hiroshi},
abstractNote = {We showed the high rf power (P{sub out}) emission from an all-metal spin torque oscillator (STO) with a Co{sub 2}Fe{sub 0.4}Mn{sub 0.6}Si (CFMS)/Ag/CFMS giant magnetoresistance (GMR) stack, which was attributable to the large GMR effect thanks to the highly spin-polarized CFMS. The oscillation spectra were measured by varying the magnetic field direction, and the perpendicular magnetic field was effective to increase P{sub out} and the Q factor. We simultaneously achieved a high output efficiency of 0.013%, a high Q of 1124, and large frequency tunability. CFMS-based all-metal STO is promising for overcoming the difficulties that conventional STOs are confronted with.},
doi = {10.1063/1.4895024},
url = {https://www.osti.gov/biblio/22311024},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 9,
volume = 105,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 2014},
month = {Mon Sep 01 00:00:00 EDT 2014}
}
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