Abstract
The thermal stability in exchange coupled CoPtCrB trilayer structure medium (TL) is discussed and compared to that for the corresponding single layer (SL) medium. The time dependence of magnetization shows a nonlinear behavior. The magnetization decay rate is found to be reduced in TL when the applied field is close to the coercivity. The DC demagnetization (DCD) reversal mechanisms are investigated by magnetic force microscopy. It is observed that for the reversed field close to remanent coercivity of the TL and SL, very coarse magnetic structures appear.
| Original language | English |
|---|---|
| Pages (from-to) | 1481-1483 |
| Number of pages | 3 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 37 |
| Issue number | 4 I |
| DOIs | |
| Publication status | Published - Jul 2001 |
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Keywords
- Antiferromagnetic coupling
- Magnetic recording
- Magnetic viscosity
- MFM observation
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
Cite this
Magnetization process and thermal stability in longitudinal magnetic recording media with a stabilizing layer. / Sbiaa, Rachid; Ahmad, Ehsan; Suzuki, Takao; Abarra, E. Noel.
In: IEEE Transactions on Magnetics, Vol. 37, No. 4 I, 07.2001, p. 1481-1483.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Magnetization process and thermal stability in longitudinal magnetic recording media with a stabilizing layer
AU - Sbiaa, Rachid
AU - Ahmad, Ehsan
AU - Suzuki, Takao
AU - Abarra, E. Noel
PY - 2001/7
Y1 - 2001/7
N2 - The thermal stability in exchange coupled CoPtCrB trilayer structure medium (TL) is discussed and compared to that for the corresponding single layer (SL) medium. The time dependence of magnetization shows a nonlinear behavior. The magnetization decay rate is found to be reduced in TL when the applied field is close to the coercivity. The DC demagnetization (DCD) reversal mechanisms are investigated by magnetic force microscopy. It is observed that for the reversed field close to remanent coercivity of the TL and SL, very coarse magnetic structures appear.
AB - The thermal stability in exchange coupled CoPtCrB trilayer structure medium (TL) is discussed and compared to that for the corresponding single layer (SL) medium. The time dependence of magnetization shows a nonlinear behavior. The magnetization decay rate is found to be reduced in TL when the applied field is close to the coercivity. The DC demagnetization (DCD) reversal mechanisms are investigated by magnetic force microscopy. It is observed that for the reversed field close to remanent coercivity of the TL and SL, very coarse magnetic structures appear.
KW - Antiferromagnetic coupling
KW - Magnetic recording
KW - Magnetic viscosity
KW - MFM observation
UR - http://www.scopus.com/inward/record.url?scp=0035386191&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035386191&partnerID=8YFLogxK
U2 - 10.1109/20.950877
DO - 10.1109/20.950877
M3 - Article
VL - 37
SP - 1481
EP - 1483
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 4 I
ER -