Magnetic Scattering in Ni Wires Fabricated on Ferroelectric LiNbO3 Substrate for Magnetic Sensor Application

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We investigated the magnetoresistive property of a micrometer-scale Ni wire with a uniaxial magnetic anisotropy induced by the formation of a heterojunction between a Ni layer and a single-crystal lithium niobate (LiNbO3) substrate. We revealed that the domain structure can be controlled by adjusting the wire alignment and that its magnetoresistance (MR) is dependent on the magnetic domain structure as well as the reversal process. The introduction of a heterojunction is a crucial method of controlling the magnetic domain structure owing to the additional generation of the magnetic anisotropy. This control of the magnetic domain structure is very useful for investigating the fundamental physical mechanism and producing artificial multiferroic functional materials and devices. The relatively large MR response observed in transport measurements alludes to the possibility that the spin-dependent scattering mechanism occurs in the domain and domain wall.
Publisher
MYU, SCIENTIFIC PUBLISHING DIVISION
Issue Date
2019-11
Language
English
Article Type
Article
Citation

SENSORS AND MATERIALS, v.31, no.10, pp.3007 - 3022

ISSN
0914-4935
DOI
10.18494/SAM.2019.2494
URI
http://hdl.handle.net/10203/268198
Appears in Collection
PH-Journal Papers(저널논문)
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