Abstract
In Pt/Co/MgO trilayers, the contribution to the total perpendicular magnetic anisotropy from the bottom Pt/Co interface is significantly greater than that from the top Co/MgO interface at intermediate annealing temperatures. However, the relative contribution is reversed at the highest annealing temperature examined in this study, 400 °C. These results indicate that as the annealing temperature increases, the quality of the Pt/Co interface deteriorates owing to the intermixing of Pt and Co, whereas the quality of the Co/MgO interface improves as oxygen atoms, which are interpenetrated into the Co layer during the deposition of MgO, are diffused toward the Co/MgO interface.
| Original language | English |
|---|---|
| Article number | 030301 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 57 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2018 Mar 1 |
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ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
Cite this
Relative strength of perpendicular magnetic anisotropy at bottom and top interfaces in Pt/Co/MgO trilayers. / Gweon, Hyung Keun; Lim, Sang Ho.
In: Japanese Journal of Applied Physics, Vol. 57, No. 3, 030301, 01.03.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Relative strength of perpendicular magnetic anisotropy at bottom and top interfaces in Pt/Co/MgO trilayers
AU - Gweon, Hyung Keun
AU - Lim, Sang Ho
PY - 2018/3/1
Y1 - 2018/3/1
N2 - In Pt/Co/MgO trilayers, the contribution to the total perpendicular magnetic anisotropy from the bottom Pt/Co interface is significantly greater than that from the top Co/MgO interface at intermediate annealing temperatures. However, the relative contribution is reversed at the highest annealing temperature examined in this study, 400 °C. These results indicate that as the annealing temperature increases, the quality of the Pt/Co interface deteriorates owing to the intermixing of Pt and Co, whereas the quality of the Co/MgO interface improves as oxygen atoms, which are interpenetrated into the Co layer during the deposition of MgO, are diffused toward the Co/MgO interface.
AB - In Pt/Co/MgO trilayers, the contribution to the total perpendicular magnetic anisotropy from the bottom Pt/Co interface is significantly greater than that from the top Co/MgO interface at intermediate annealing temperatures. However, the relative contribution is reversed at the highest annealing temperature examined in this study, 400 °C. These results indicate that as the annealing temperature increases, the quality of the Pt/Co interface deteriorates owing to the intermixing of Pt and Co, whereas the quality of the Co/MgO interface improves as oxygen atoms, which are interpenetrated into the Co layer during the deposition of MgO, are diffused toward the Co/MgO interface.
UR - http://www.scopus.com/inward/record.url?scp=85042663493&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85042663493&partnerID=8YFLogxK
U2 - 10.7567/JJAP.57.030301
DO - 10.7567/JJAP.57.030301
M3 - Article
AN - SCOPUS:85042663493
VL - 57
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 3
M1 - 030301
ER -