Volume 86, Number 6, June 2009
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||26 June 2009|
High-field domain wall propagation velocity in magnetic nanowires
Physics Department, The Hong Kong University of Science and Technology - Clear Water Bay, Hong Kong SAR, China
Corresponding author: email@example.com
Accepted: 29 May 2009
A theory of field-induced domain wall (DW) propagation is developed. The theory not only explains why a DW in a defect-free nanowire must propagate at a finite velocity, but also provides a proper definition of DW propagation velocity. This definition, valid for an arbitrary DW structure, allows one to compute the instantaneous DW velocity in a meaningful way even when the DW is not moving as a rigid body. A new velocity-field formula beyond the Walker breakdown field, which is in excellent agreement with both experiments and numerical simulations, is derived.
PACS: 75.60.Jk – Magnetization reversal mechanisms / 75.75.+a – Magnetic properties of nanostructures / 85.70.Ay – Magnetic device characterization, design, and modeling
© EPLA, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.