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2006 | 4 | 1 | 30-41
Tytuł artykułu

Spin-dependent transport through magnetic nanojunctions

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Coherent electronic transport through a molecular device is studied using non-equilibrium Green's function (NEGF) formalism. Such device is made of atomic nanowire which is connected to ferromagnetic electrodes. The molecule itself is described with the help of Hubbard model (Coulomb interactions are treated by means of the Hartree-Fock approximation), while the coupling to the electrodes is modeled through the use of a broad-band theory. It was shown that magnetoresistance varies periodically with increasing length of the atomic wire (in the linear response regime) and oscillates with increasing bias voltage (in the nonlinear response regime). Since the TMR effect for analyzed structures is predicted to be large (tens of percent), these junctions seem to be suitable for application as magnetoresistive elements in future electronic circuits.
Wydawca

Czasopismo
Rocznik
Tom
4
Numer
1
Strony
30-41
Opis fizyczny
Daty
wydano
2006-03-01
online
2006-03-01
Twórcy
  • Departamento de Teoria de la Materia Condensada, Instituto de Ciencia de Materiales de Madrid (CSIC), Cantoblanco, 28049, Madrid, Spain
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1007_s11534-005-0004-8
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