Abstract
Solving the Landau-Lifshitz-Gilbert-Slonczewski equation numerically, we show that switching current density for the current-induced magnetization switching decreases by introducing the perpendicular anisotropy smaller than the out-of-plane demagnetization energy in the switched layer as predicted by theories. Interestingly, the introduction of the perpendicular anisotropy does not decrease the thermal stability of magnetization, but rather slightly increases. The reduction in switching current density results from the decrease of demagnetization effect whereas the increase of thermal stability results from the decrease of attempt frequency.
| Original language | English |
|---|---|
| Pages (from-to) | 985-988 |
| Number of pages | 4 |
| Journal | Current Applied Physics |
| Volume | 9 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2009 Sep 1 |
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Keywords
- Current-induced magnetization switching
- Perpendicular anisotropy
- Spin-transfer torque
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)
Cite this
Reduction in switching current density for current-induced magnetization switching without loss of thermal stability : Effect of perpendicular anisotropy. / Suh, Hong Ju; Lee, Kyoung Jin.
In: Current Applied Physics, Vol. 9, No. 5, 01.09.2009, p. 985-988.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reduction in switching current density for current-induced magnetization switching without loss of thermal stability
T2 - Effect of perpendicular anisotropy
AU - Suh, Hong Ju
AU - Lee, Kyoung Jin
PY - 2009/9/1
Y1 - 2009/9/1
N2 - Solving the Landau-Lifshitz-Gilbert-Slonczewski equation numerically, we show that switching current density for the current-induced magnetization switching decreases by introducing the perpendicular anisotropy smaller than the out-of-plane demagnetization energy in the switched layer as predicted by theories. Interestingly, the introduction of the perpendicular anisotropy does not decrease the thermal stability of magnetization, but rather slightly increases. The reduction in switching current density results from the decrease of demagnetization effect whereas the increase of thermal stability results from the decrease of attempt frequency.
AB - Solving the Landau-Lifshitz-Gilbert-Slonczewski equation numerically, we show that switching current density for the current-induced magnetization switching decreases by introducing the perpendicular anisotropy smaller than the out-of-plane demagnetization energy in the switched layer as predicted by theories. Interestingly, the introduction of the perpendicular anisotropy does not decrease the thermal stability of magnetization, but rather slightly increases. The reduction in switching current density results from the decrease of demagnetization effect whereas the increase of thermal stability results from the decrease of attempt frequency.
KW - Current-induced magnetization switching
KW - Perpendicular anisotropy
KW - Spin-transfer torque
UR - http://www.scopus.com/inward/record.url?scp=67349173921&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67349173921&partnerID=8YFLogxK
U2 - 10.1016/j.cap.2008.10.004
DO - 10.1016/j.cap.2008.10.004
M3 - Article
VL - 9
SP - 985
EP - 988
JO - Current Applied Physics
JF - Current Applied Physics
SN - 1567-1739
IS - 5
ER -