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Spin Seebeck Effect and Thermal Colossal Magnetoresistance in Graphene Nanoribbon Heterojunction
Y. Ni; K. L. Yao; H. H. Fu; G. Y. Gao; S. C. Zhu; S. L. Wang
2013
Source PublicationScientific Reports
ISSN2045-2322
Volume3
AbstractSpin caloritronics devices are very important for future development of low-power-consumption technology. We propose a new spin caloritronics device based on zigzag graphene nanoribbon (ZGNR), which is a heterojunction consisting of single-hydrogen-terminated ZGNR (ZGNR-H) and double-hydrogen-terminated ZGNR (ZGNR-H-2). We predict that spin-up and spin-down currents flowing in opposite directions can be induced by temperature difference instead of external electrical bias. The thermal spin-up current is considerably large and greatly improved compared with previous work in graphene. Moreover, the thermal colossal magnetoresistance is obtained in our research, which could be used to fabricate highly-efficient spin caloritronics MR devices.
description.department[ni, yun ; yao, kailun ; fu, huahua ; gao, guoying ; zhu, sicong ; wang, shuling] huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china. [ni, yun ; yao, kailun ; fu, huahua ; gao, guoying ; zhu, sicong ; wang, shuling] huazhong univ sci & technol, wuhan natl high magnet field ctr, wuhan 430074, peoples r china. [yao, kailun] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. ; yao, kl (reprint author), huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china. ; klyao@mail.hust.edu.cn
KeywordMagnetic Tunnel-junctions Thermoelectric-materials Transport-properties Nanowires Silicon
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71417
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Y. Ni,K. L. Yao,H. H. Fu,et al. Spin Seebeck Effect and Thermal Colossal Magnetoresistance in Graphene Nanoribbon Heterojunction[J]. Scientific Reports,2013,3.
APA Y. Ni,K. L. Yao,H. H. Fu,G. Y. Gao,S. C. Zhu,&S. L. Wang.(2013).Spin Seebeck Effect and Thermal Colossal Magnetoresistance in Graphene Nanoribbon Heterojunction.Scientific Reports,3.
MLA Y. Ni,et al."Spin Seebeck Effect and Thermal Colossal Magnetoresistance in Graphene Nanoribbon Heterojunction".Scientific Reports 3(2013).
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