Noncollinear spintronics and electric-field control: a review

Our world is composed of various materials with different structures, where spin structures have been playing a pivotal role in spintronic devices of the contemporary information technology. Apart from conventional collinear spin materials such as collinear ferromagnets and collinear antiferromagnet...

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Bibliographic Details
Published in:Rare metals 2020-02, Vol.39 (2), p.95-112
Main Authors: Qin, Pei-Xin, Yan, Han, Wang, Xiao-Ning, Feng, Ze-Xin, Guo, Hui-Xin, Zhou, Xiao-Rong, Wu, Hao-Jiang, Zhang, Xin, Leng, Zhao-Guo-Gang, Chen, Hong-Yu, Liu, Zhi-Qi
Format: Article
Language:English
Subjects:
Antiferromagnetism
Biomaterials
Chemistry and Materials Science
Domain walls
Electric fields
Electromagnetism
Energy
Fermions
Ferromagnetism
Hall effect
Magnetism
Magnetoresistance
Magnetoresistivity
Materials Engineering
Materials Science
Metallic Materials
Nanoscale Science and Technology
Physical Chemistry
Spin structure
Spin-orbit interactions
Spintronics
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Summary:Our world is composed of various materials with different structures, where spin structures have been playing a pivotal role in spintronic devices of the contemporary information technology. Apart from conventional collinear spin materials such as collinear ferromagnets and collinear antiferromagnetically coupled materials, noncollinear spintronic materials have emerged as hot spots of research attention due to exotic physical phenomena. In this review, we first introduce two types of noncollinear spin structures, i.e., the chiral spin structure that yields real-space Berry phases and the coplanar noncollinear spin structure that could generate momentum-space Berry phases, and then move to relevant novel physical phenomena including topological Hall effect, anomalous Hall effect, multiferroic, Weyl fermions, spin-polarized current and spin Hall effect without spin–orbit coupling in these noncollinear spin systems. Afterward, we summarize and elaborate the electric-field control of the noncollinear spin structure and related physical effects, which could enable ultralow power spintronic devices in future. In the final outlook part, we emphasize the importance and possible routes for experimentally detecting the intriguing theoretically predicted spin-polarized current, verifying the spin Hall effect in the absence of spin–orbit coupling and exploring the anisotropic magnetoresistance and domain-wall-related magnetoresistance effects for noncollinear antiferromagnetic materials. Graphic abstract
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-019-01352-w