Magnetic Force Microscopic Study on Domain-Wall Molecules in NiFe Nano Rings

Abstract:

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A pair of magnetic domain walls (DWs) in ferromagnetic NiFe rings has been investigated in terms of the magnetic force microscopy (MFM). When the distance between the rings d is greater than a threshold value dth, MFM signals indicate that a DW in the ring is dragged due to a stray magnetic field from an MFM probe tip. When d < dth, this drag signals disappears; DWs are bound to each other by the DW-DW interaction. This transition can be argued in terms of the competition between the DW-DW magnetostatic interaction and the DW-drag potential. From the d-dependent MFM data, the DW-drag potential was estimated.

Info:

Periodical:

Solid State Phenomena (Volumes 152-153)

Edited by:

N. Perov

Pages:

529-532

DOI:

10.4028/www.scientific.net/SSP.152-153.529

Citation:

K. Sasage et al., "Magnetic Force Microscopic Study on Domain-Wall Molecules in NiFe Nano Rings", Solid State Phenomena, Vols. 152-153, pp. 529-532, 2009

Online since:

April 2009

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Price:

$35.00

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