Please use this identifier to cite or link to this item:
|Title:||Nanoscale modification of magnetic properties for effective domain wall pinning||Authors:||Jin, Tianli
Law, Wai Cheung
Lew, Wen Siang
Piramanayagam, S. N.
|Keywords:||Science::Physics::Electricity and magnetism||Issue Date:||2018||Source:||Jin, T., Tan, F., Law, W. C., Gan, W., Soldatov, I., Schäfer, R., . . . Piramanayagam, S. N. (2019). Nanoscale modification of magnetic properties for effective domain wall pinning. Journal of Magnetism and Magnetic Materials, 475, 70-75. doi:10.1016/j.jmmm.2018.11.114||Journal:||Journal of Magnetism and Magnetic Materials||Abstract:||Magnetic domain wall memory technology, wherein the information is stored in magnetic domains of multiple magnetic nanowires, is a potential concept proposed to store the large amount of digital data in the near future, which is generated due to the widespread use of social media and computing devices. However, one of the technological challenges which remains to be solved in domain wall memory is the controllable pinning of the domain walls at the nanometer scale. Here, we demonstrate the possibility to stabilize domain walls with nanoscale modification of magnetic properties by using thermal diffusion of elements from crossbar configuration. We have inspected and evaluated the magnetic properties of the nanowires using Kerr microscopy. The pinning field induced by Cr diffusion of our Ni80Fe20 nanowire was estimated to be about 8 kA/m as determined from minor loop (magnetoresistance vs. magnetic field) measurements. The proposed concept can potentially be used in future domain wall memory applications.||URI:||https://hdl.handle.net/10356/141998||ISSN:||0304-8853||DOI:||10.1016/j.jmmm.2018.11.114||Rights:||© 2018 Elsevier B.V. All rights reserved. This paper was published in Journal of Magnetism and Magnetic Materials and is made available with permission of Elsevier B.V.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SPMS Journal Articles|
Files in This Item:
|Nanoscale modification of magnetic properties for effective domain wall pinning.pdf||1.03 MB||Adobe PDF||View/Open|
WEB OF SCIENCETM
checked on Oct 22, 2020
Page view(s) 5013
checked on Oct 26, 2020
checked on Oct 26, 2020
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.