کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1592577 1515640 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spin-dependent transport in graphene nanoribbons adsorbed with vanadium in different positions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Spin-dependent transport in graphene nanoribbons adsorbed with vanadium in different positions
چکیده انگلیسی

The spin-polarized quantum transport properties of graphene nanoribbons (GNRs) adsorbed with vanadium atoms and terminated with hydrogen are investigated by density functional theory (DFT) associated with nonequilibrium Green's function theory (NGFT). The spin current behaves nonlinearly against bias voltage for the 4-zigzag graphene nanoribbons (ZGNRs), even changing signal at certain voltages due to specific features of the coupling between molecular states and magnetic leads; For the V-adsorbed 7-armchair graphene nanoribbons (ACGNRs), the transmission coefficients is dramatical large. All these results suggest that the present structures are suitable for nanoelectronics and spintronics applications.


► Spin current behaves nonlinearly in vanadium-adsorbed zigzag graphene nanoribbons.
► Density functional theory associated with nonequilibrium Green's function theory.
► Transmission coefficients of V-adsorbed graphene nanoribbons reach very large.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 155, February 2013, Pages 40–44
نویسندگان
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