Spin-filter and negative differential resistance effect in zigzag-edged bilayer graphene nanoribbon devices
نویسندگان
چکیده
منابع مشابه
Dual Spin Filter Effect in a Zigzag Graphene Nanoribbon
By first principle calculations, a dual spin filter effect under finite bias voltages is demonstrated in an antiferromagnetic junction of symmetric zigzag graphene nanoribbon (ZGNR). Unlike conventional spin filter devices using half metallic materials, the upand down-spin electrons are unidirectionally filtered in the counter direction of the bias voltage, making the junction a dual spin filte...
متن کاملPerfect Spin Filter in a Tailored Zigzag Graphene Nanoribbon
Zigzag graphene nanoribbons (ZGNRs) are expected to serve as the promising component in the all-carbon spintronic device. It remains challenging to fabricate a device based on ZGNRs with high spin-filter efficiency and low experimental complexity. Using density functional theory combined with nonequilibrium Green's function technique, we studied the spin-dependent transport properties of the ta...
متن کاملChiral selective tunneling induced negative differential resistance in zigzag graphene nanoribbon: A theoretical study
graphene nanoribbon: A theoretical study Z. F. Wang, Qunxiang Li, Q. W. Shi, Xiaoping Wang, Jinlong Yang, J. G. Hou, and Jie Chen Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China Department of Electrical and Computer Engineering, University of Alberta, AB T6G 2V4, Canada and National Res...
متن کاملSpin-dependent Seebeck Effect, Thermal Colossal Magnetoresistance and Negative Differential Thermoelectric Resistance in Zigzag Silicene Nanoribbon Heterojunciton
Spin-dependent Seebeck effect (SDSE) is one of hot topics in spin caloritronics, which examine the relationships between spin and heat transport in materials. Meanwhile, it is still a huge challenge to obtain thermally induced spin current nearly without thermal electron current. Here, we construct a hydrogen-terminated zigzag silicene nanoribbon heterojunction, and find that by applying a temp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: AIP Advances
سال: 2016
ISSN: 2158-3226
DOI: 10.1063/1.4942670