Abstract
The magnetization direction of a cobalt-platinum film has been manipulated by magnetic-field-assisted ion-beam mixing. A uniaxial easy magnetization axis is induced along the oscillation direction of the incident beam of 80 keV Ar+ ions. The easy axis was then rotated by 60°, when the same ion irradiation process was carried out in the presence of an external magnetic field. Magnetic force microscopy measurements show that line shaped domain structures are created with their long axis along the induced magnetization directions. It is proposed that the creation of adjacent regions with orthogonal magnetization can play a crucial role in stabilizing the magnetostatic dipolar interaction between adjacent bits of magnetic data storage devices.
| Original language | English |
|---|---|
| Pages (from-to) | 3016-3018 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 81 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 2002 Oct 14 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Cite this
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Angular rotation of magnetic hysteresis of ion-irradiated ferromagnetic thin films. / Chang, G. S.; Callcott, T. A.; Zhang, G. P.; Woods, G. T.; Kim, S. H.; Shin, S. W.; Jeong, K.; Whang, C. N.; Moewes, A.
In: Applied Physics Letters, Vol. 81, No. 16, 14.10.2002, p. 3016-3018.Research output: Contribution to journal › Article
TY - JOUR
T1 - Angular rotation of magnetic hysteresis of ion-irradiated ferromagnetic thin films
AU - Chang, G. S.
AU - Callcott, T. A.
AU - Zhang, G. P.
AU - Woods, G. T.
AU - Kim, S. H.
AU - Shin, S. W.
AU - Jeong, K.
AU - Whang, C. N.
AU - Moewes, A.
PY - 2002/10/14
Y1 - 2002/10/14
N2 - The magnetization direction of a cobalt-platinum film has been manipulated by magnetic-field-assisted ion-beam mixing. A uniaxial easy magnetization axis is induced along the oscillation direction of the incident beam of 80 keV Ar+ ions. The easy axis was then rotated by 60°, when the same ion irradiation process was carried out in the presence of an external magnetic field. Magnetic force microscopy measurements show that line shaped domain structures are created with their long axis along the induced magnetization directions. It is proposed that the creation of adjacent regions with orthogonal magnetization can play a crucial role in stabilizing the magnetostatic dipolar interaction between adjacent bits of magnetic data storage devices.
AB - The magnetization direction of a cobalt-platinum film has been manipulated by magnetic-field-assisted ion-beam mixing. A uniaxial easy magnetization axis is induced along the oscillation direction of the incident beam of 80 keV Ar+ ions. The easy axis was then rotated by 60°, when the same ion irradiation process was carried out in the presence of an external magnetic field. Magnetic force microscopy measurements show that line shaped domain structures are created with their long axis along the induced magnetization directions. It is proposed that the creation of adjacent regions with orthogonal magnetization can play a crucial role in stabilizing the magnetostatic dipolar interaction between adjacent bits of magnetic data storage devices.
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U2 - 10.1063/1.1515370
DO - 10.1063/1.1515370
M3 - Article
AN - SCOPUS:79955990959
VL - 81
SP - 3016
EP - 3018
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 16
ER -