Domain wall pinning in ultra-narrow electromigrated break junctions
Domain wall pinning in ultra-narrow electromigrated break junctions
复制标题
超窄电迁移断裂结中的畴壁钉扎
DOI:
10.1088/0953-8984/26/47/474207
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
M.A. Mawass
中科院分区:
文献类型:
--
作者:
A. Loescher;M.A. Mawass
The study of magnetic domain walls in constrained geometries is an important topic, yet when dealing with extreme nanoscale magnetic systems artefacts can often dominate the measurements and obscure the effects of intrinsic magnetic origin. In this work we study the evolution of domain wall depinning in electromigrated ferromagnetic junctions which are both initially fabricated and subsequently tailored in-situ in clean ultra-high vacuum conditions. Carefully designed Ni 80 Fe 20 (Permalloy) notched half-ring structures are fabricated and investigated as a function of constriction width by tailoring the size of the contact using controlled in-situ electromigration. It is found that the domain wall pinning strength is increased on reducing the contact size in line with a reduction of the wall energy in narrower constrictions. Furthermore, the angular dependency and symmetry of the depinning field is measured to determine the full pinning potential for a domain wall in a system with a narrow constriction.
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影响因子:
2.1
作者:
Bryan M
通讯作者:
Bryan M
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
L. Valladares;A. Domínguez;J. Aguiar;R. Reeve;T. Mitrelias;R. Langford;Y. Azuma;C. Barnes;Y. Majima
通讯作者:
Y. Majima
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
Kenji Yoshida;A. Umeno;S. Sakata;K. Hirakawa
通讯作者:
K. Hirakawa
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
S. Achilles;M. Czerner;I. Mertig
通讯作者:
I. Mertig
影响因子:
4
作者:
D. Petrovykh;K. N. Altmann;H. Höchst;M. Laubscher;S. Maat;G. Mankey;F. Himpsel
通讯作者:
D. Petrovykh;K. N. Altmann;H. Höchst;M. Laubscher;S. Maat;G. Mankey;F. Himpsel