Abstract
We present a series of studies on interdot coupling in the nanometer-scaled permalloy dots array. A standard electron beam lithography in conjunction with lift-off process was employed for patterning 30 nm thick of millions of permalloy dots array with diameter (D) of 500 nm and the aspect ratio S/D of spacing (S) to diameter ranging from 0.2 to 1.25. The magnetization reversal processes were identified to evolve through the vortex nucleation, movement, and annihilation based on magnetic force microscopy (MFM) imaging in the presence of external magnetic fields. The nucleation field, annihilation field, and moving rate of vortex core were analyzed using M-H loops measured by the alternating gradient magnetometer (AGM). These behaviors are associated with the dipole-dipole interaction in dots array with various interdot spacings.
| Original language | English |
|---|---|
| Article number | 012005 |
| Journal | Journal of Physics: Conference Series |
| Volume | 266 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2011 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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Study of inter-dot coupling in nano-patterned permalloy dots array. / Chao, Chien Tu; Kuo, Cheng Yi; Tsai, Yu Ching; Chang, C. K.; Wang, J. F.; Horng, Lance; Wu, Jong-Ching.
In: Journal of Physics: Conference Series, Vol. 266, No. 1, 012005, 01.01.2011.Research output: Contribution to journal › Article
TY - JOUR
T1 - Study of inter-dot coupling in nano-patterned permalloy dots array
AU - Chao, Chien Tu
AU - Kuo, Cheng Yi
AU - Tsai, Yu Ching
AU - Chang, C. K.
AU - Wang, J. F.
AU - Horng, Lance
AU - Wu, Jong-Ching
PY - 2011/1/1
Y1 - 2011/1/1
N2 - We present a series of studies on interdot coupling in the nanometer-scaled permalloy dots array. A standard electron beam lithography in conjunction with lift-off process was employed for patterning 30 nm thick of millions of permalloy dots array with diameter (D) of 500 nm and the aspect ratio S/D of spacing (S) to diameter ranging from 0.2 to 1.25. The magnetization reversal processes were identified to evolve through the vortex nucleation, movement, and annihilation based on magnetic force microscopy (MFM) imaging in the presence of external magnetic fields. The nucleation field, annihilation field, and moving rate of vortex core were analyzed using M-H loops measured by the alternating gradient magnetometer (AGM). These behaviors are associated with the dipole-dipole interaction in dots array with various interdot spacings.
AB - We present a series of studies on interdot coupling in the nanometer-scaled permalloy dots array. A standard electron beam lithography in conjunction with lift-off process was employed for patterning 30 nm thick of millions of permalloy dots array with diameter (D) of 500 nm and the aspect ratio S/D of spacing (S) to diameter ranging from 0.2 to 1.25. The magnetization reversal processes were identified to evolve through the vortex nucleation, movement, and annihilation based on magnetic force microscopy (MFM) imaging in the presence of external magnetic fields. The nucleation field, annihilation field, and moving rate of vortex core were analyzed using M-H loops measured by the alternating gradient magnetometer (AGM). These behaviors are associated with the dipole-dipole interaction in dots array with various interdot spacings.
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U2 - 10.1088/1742-6596/266/1/012005
DO - 10.1088/1742-6596/266/1/012005
M3 - Article
AN - SCOPUS:79952020327
VL - 266
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012005
ER -