| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8035242 | Thin Solid Films | 2014 | 4 Pages |
Abstract
We explore magnetic tunnel junctions consisting of Co60Fe40/AlOx/Co2FeSi trilayers on Si(111) by room-temperature molecular beam epitaxy. Even for the all room-temperature fabrication processes, the Co2FeSi layer includes L21-ordered structures. We demonstrate reproducible tunneling magnetoresistance ratios of ~ 44% and ~ 28% at 30 K and 300 K, respectively. Assuming the same room-temperature spin polarization (P) of CoFe alloys, P for Co2FeSi grown at room temperature is larger than that for D03-Fe3Si grown at 130 °C.
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Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Yuichi Fujita, Shinya Yamada, Yuya Maeda, Masanobu Miyao, Kohei Hamaya,