2024-03-28T23:19:37Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/947712017-03-22T09:35:09Zcom_10261_89com_10261_3col_10261_342
2014-04-02T11:03:35Z
urn:hdl:10261/94771
Magnetic reversal modes in cylindrical nanowires
Ivanov, Yu P.
Vázquez Villalabeitia, Manuel
Chubykalo-Fesenko, O.
We perform a systematic study based on micromagnetic simulations of the demagnetization process for cylindrical nanowires with different crystalline structure. These simulations correspond to the most commonly reported electrodeposited nanowires, based on permalloy, nickel, iron and cobalt, with crystal structure tailored by electrodeposition parameters. The dependence of coercivity and remanence on the nanowire diameter, the angular dependence of coercivity and the corresponding reversal modes are calculated and discussed. Extensive comparison of the obtained coercive field value with available experimental data is presented. Depending on the crystallographic structure, the nanowires reverse magnetization by transverse or vortex domain walls and can exhibit the vortex structure along the whole nanowire length. The state diagrams for reversal modes in different materials as a function of the exchange correlation length, nanowire diameter and the anisotropy direction are presented. Magnetic force microscopy images corresponding to different structures are also evaluated by the micromagnetic simulations. © 2013 IOP Publishing Ltd.
2014-04-02T11:03:35Z
2014-04-02T11:03:35Z
2013
2014-04-02T11:03:35Z
artículo
Journal of Physics D: Applied Physics 46(48): 485001 (2013)
http://hdl.handle.net/10261/94771
10.1088/0022-3727/46/48/485001
eng
info:eu-repo/grantAgreement/EC/FP7/280670
S2009/MAT-1726/Nanobiomagnet
closedAccess
Institute of Physics Publishing