Abstract
We fabricated quasiantiferromagnetic (quasi-AFM) layers with alternating antiparallel magnetization in the neighboring domains via 90° magnetic coupling through an Fe-O layer. We investigated the magnetic properties and the relationship between the magnetic domain size and the 90° magnetic coupling via experiments and calculations. Two types of samples with a Ru buffer and a (Ni80Fe20)Cr40 buffer were prepared, and we found that with the NiFeCr buffer, the sample has a flatter Fe-O layer, leading to stronger 90° magnetic coupling and a smaller domain size compared with the Ru buffer sample. This trend is well explained by the bilinear and biquadratic coupling coefficients, A12 and B12, in Landau-Lifshitz-Gilbert simulations, suggesting the possibility of using both AFM and FM properties by controlling the quasi-AFM domain size.
| Original language | English |
|---|---|
| Article number | 093901 |
| Journal | Journal of Applied Physics |
| Volume | 126 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Sep 7 2019 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
Quasi-antiferromagnetic multilayer stacks with 90 degree coupling mediated by thin Fe oxide spacers. / Nagashima, G.; Kurokawa, Y.; Zhong, Y.; Horiike, S.; Schönke, D.; Krautscheid, P.; Reeve, R.; Kläui, M.; Inagaki, Y.; Kawae, T.; Tanaka, T.; Matsuyama, K.; Ohnishi, K.; Kimura, T.; Yuasa, H.
In: Journal of Applied Physics, Vol. 126, No. 9, 093901, 07.09.2019.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Quasi-antiferromagnetic multilayer stacks with 90 degree coupling mediated by thin Fe oxide spacers
AU - Nagashima, G.
AU - Kurokawa, Y.
AU - Zhong, Y.
AU - Horiike, S.
AU - Schönke, D.
AU - Krautscheid, P.
AU - Reeve, R.
AU - Kläui, M.
AU - Inagaki, Y.
AU - Kawae, T.
AU - Tanaka, T.
AU - Matsuyama, K.
AU - Ohnishi, K.
AU - Kimura, T.
AU - Yuasa, H.
PY - 2019/9/7
Y1 - 2019/9/7
N2 - We fabricated quasiantiferromagnetic (quasi-AFM) layers with alternating antiparallel magnetization in the neighboring domains via 90° magnetic coupling through an Fe-O layer. We investigated the magnetic properties and the relationship between the magnetic domain size and the 90° magnetic coupling via experiments and calculations. Two types of samples with a Ru buffer and a (Ni80Fe20)Cr40 buffer were prepared, and we found that with the NiFeCr buffer, the sample has a flatter Fe-O layer, leading to stronger 90° magnetic coupling and a smaller domain size compared with the Ru buffer sample. This trend is well explained by the bilinear and biquadratic coupling coefficients, A12 and B12, in Landau-Lifshitz-Gilbert simulations, suggesting the possibility of using both AFM and FM properties by controlling the quasi-AFM domain size.
AB - We fabricated quasiantiferromagnetic (quasi-AFM) layers with alternating antiparallel magnetization in the neighboring domains via 90° magnetic coupling through an Fe-O layer. We investigated the magnetic properties and the relationship between the magnetic domain size and the 90° magnetic coupling via experiments and calculations. Two types of samples with a Ru buffer and a (Ni80Fe20)Cr40 buffer were prepared, and we found that with the NiFeCr buffer, the sample has a flatter Fe-O layer, leading to stronger 90° magnetic coupling and a smaller domain size compared with the Ru buffer sample. This trend is well explained by the bilinear and biquadratic coupling coefficients, A12 and B12, in Landau-Lifshitz-Gilbert simulations, suggesting the possibility of using both AFM and FM properties by controlling the quasi-AFM domain size.
UR - http://www.scopus.com/inward/record.url?scp=85072014237&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85072014237&partnerID=8YFLogxK
U2 - 10.1063/1.5117869
DO - 10.1063/1.5117869
M3 - Article
AN - SCOPUS:85072014237
VL - 126
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 9
M1 - 093901
ER -