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Symmetry-Dependent Spin Transport Properties and Spin-Filter Effects in Zigzag-Edged Germanene Nanoribbons
Joint Authors
Cao, Can
Long, Mengqiu
Mao, Xiancheng
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-04
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
We performed the first-principles calculations to investigate the spin-dependent electronic transport properties of zigzag-edged germanium nanoribbons (ZGeNRs).
We choose of ZGeNRs with odd and even widths of 5 and 6, and the symmetry-dependent transport properties have been found, although the σ mirror plane is absent in ZGeNRs.
Furthermore, even-N and odd-N ZGeNRs have very different current-voltage relationships.
We find that the even 6-ZGeNR shows a dual spin-filter effect in antiparallel (AP) magnetism configuration, but the odd 5-ZGeNR behaves as conventional conductors with linear current-voltage dependence.
It is found that when the two electrodes are in parallel configuration, the 6-ZGeNR system is in a low resistance state, while it can switch to a much higher resistance state when the electrodes are in AP configuration, and the magnetoresistance of 270% can be observed.
American Psychological Association (APA)
Cao, Can& Long, Mengqiu& Mao, Xiancheng. 2015. Symmetry-Dependent Spin Transport Properties and Spin-Filter Effects in Zigzag-Edged Germanene Nanoribbons. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1069335
Modern Language Association (MLA)
Cao, Can…[et al.]. Symmetry-Dependent Spin Transport Properties and Spin-Filter Effects in Zigzag-Edged Germanene Nanoribbons. Journal of Nanomaterials No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1069335
American Medical Association (AMA)
Cao, Can& Long, Mengqiu& Mao, Xiancheng. Symmetry-Dependent Spin Transport Properties and Spin-Filter Effects in Zigzag-Edged Germanene Nanoribbons. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1069335
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069335