Nanomagnetic engineering of the properties of domain wall atom traps

Details Nanomagnetic engineering of the properties of domain wall atom traps Nanomagnetic engineering of the properties of domain wall atom traps

2011-09-16

arxiv.org/abs/1109.3666v1

Journal of Applied Physics 110, 123918 (2011)

Physics

Atomic Physics

17 pages, 8 figures

Scientific paper

10.1063/1.3671631

We have used the results of micromagnetic simulations to investigate the effects of nanowire geometry and domain wall magnetization structure on the characteristic parameters of magnetic atom traps formed by domain walls in planar ferromagnetic nanowires. It is found that when traps are formed in the near-field of a domain wall both nanowire geometry and wall structure have a substantial effect on trap frequency and adiabaticity. We also show that in certain regimes a trap's depth depends only on the amplitude of an externally applied rotating magnetic field, thus allowing it to be tuned independently of the trap's other critical parameters.

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