Physica E, ( ISI ), Volume (3), No (2), Year (2010-12) , Pages (620-624)

Title : ( Tunnel magnetoresistance of the system of ferromagnetic electrode/ Polyacetylene/ ferromagnetic electrode:A Green’s function approach )

Authors: davoud vahedi , Nasser Shahtahmassebi , mostafa asgarifarsangi , mojtaba ashhdi , S. A. Ketabi ,

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a b s t r a c t Based on a p-orbital tight-binding model Hamiltonian and the Green’s function approach together with the Landauer formalism, we studied the coherent spin-dependent transport properties of ferromagnetic (FM)-molecule-FM junctions for the molecule to be trans-polyacetylene (t-PA). The conductance properties of the spin system are studied for a t-PA molecule of fixed length. It is shown that tunnel magnetoresistance (TMR) of the molecular junction can be quite large (over 60%) and the TMR value depends on applied voltage. The TMR maximum value for a t-PA junction is obtained at a low applied voltage (Vao0.7). & 2010 Elsevier B.V. All rights reserved.

Keywords

, Tunnel magnetoresistance, Polyacetylene, Green s
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@article{paperid:1019937,
author = {Vahedi, Davoud and Shahtahmassebi, Nasser and Asgarifarsangi, Mostafa and Ashhdi, Mojtaba and S. A. Ketabi},
title = {Tunnel magnetoresistance of the system of ferromagnetic electrode/ Polyacetylene/ ferromagnetic electrode:A Green’s function approach},
journal = {Physica E},
year = {2010},
volume = {3},
number = {2},
month = {December},
issn = {1386-9477},
pages = {620--624},
numpages = {4},
keywords = {Tunnel magnetoresistance;Polyacetylene;Green s function},
}

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%0 Journal Article
%T Tunnel magnetoresistance of the system of ferromagnetic electrode/ Polyacetylene/ ferromagnetic electrode:A Green’s function approach
%A Vahedi, Davoud
%A Shahtahmassebi, Nasser
%A Asgarifarsangi, Mostafa
%A Ashhdi, Mojtaba
%A S. A. Ketabi
%J Physica E
%@ 1386-9477
%D 2010

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