Title : ( A THEORETICAL STUDY OF SPIN-DEPENDENT TRANSPORT IN HYBRID STRUCTURE CONSIST OF SILICON CARBIDE AND ARMCHAIR GRAPHENE NANORIBBONS )
Authors: zihub sohbatzadeh , Mahmood Rezaee Roknabadi , Nasser Shahtahmassebi , Mohammad Behdani ,
Full TextAbstract
Based on nonequilibrium Green’s functions in combination with the density functional theory, a theoretical study on electronic structures and elastic spin-transport properties of a magnetic tunnel junction is presented which consists of a single iron atom adsorbed on hexagonal armchair silicon carbide nanoribbon (Fe@ASiCNR) contacted with two semi-infinite leads composed of nitrogen-doped armchair graphene nanoribbon (N-AGNR). Three different configurations are considered. The narrow Fe@ASiCNR is inserted between two AGNR electrodes doped with nitrogen at a concentration of one, two and three nitrogen impurity. The I-V characteristics of various junctions are examined, with the results exhibiting significant negative differential resistance (NDR) and spin-filter efficiency (SFE) phenomena. It is observed that such NDR effects arise from the interaction between the narrow density of states of the nitrogen-doped electrodes and discrete states in the scattering region.
Keywords
, Negative differential resistance, Spin-filter efficiency, Graphene nanoribbons, Silicon carbide nanoribbon 1. INTRODUCTION
@article{paperid:1049422,
author = {Sohbatzadeh, Zihub and Rezaee Roknabadi, Mahmood and Shahtahmassebi, Nasser and Behdani, Mohammad},
title = {A THEORETICAL STUDY OF SPIN-DEPENDENT TRANSPORT IN HYBRID STRUCTURE CONSIST OF SILICON CARBIDE AND ARMCHAIR GRAPHENE NANORIBBONS},
journal = {Science International-Lahore},
year = {2015},
volume = {27},
number = {2},
month = {September},
issn = {1013-5316},
pages = {961--966},
numpages = {5},
keywords = {Negative differential resistance; Spin-filter efficiency; Graphene nanoribbons; Silicon carbide nanoribbon
1. INTRODUCTION},
}
%0 Journal Article
%T A THEORETICAL STUDY OF SPIN-DEPENDENT TRANSPORT IN HYBRID STRUCTURE CONSIST OF SILICON CARBIDE AND ARMCHAIR GRAPHENE NANORIBBONS
%A Sohbatzadeh, Zihub
%A Rezaee Roknabadi, Mahmood
%A Shahtahmassebi, Nasser
%A Behdani, Mohammad
%J Science International-Lahore
%@ 1013-5316
%D 2015
