Faculty of Physics - University of Bucharest

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FACULTY OF PHYSICS

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2024-11-23 18:23

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Conference: Bucharest University Faculty of Physics 2014 Meeting

Section: Solid State Physics and Materials Science

Title:

Spin filtering effects in graphene nanoribbons doped with Mn impurities

Authors:

Daniela ENCIU(1), G. A. NEMNES(2), I. URSU(1)

Affiliation:

(1) INCAS − National Institute for Aerospace Research “Elie Carafoli”, 220 B-dul Iuliu Maniu, Bucharest 061126, Romania

(2) Faculty of Physics, University of Bucharest, Romania, Materials and Devices for Electronics and Optoelectronics Research Center, 077125 Magurele-Ilfov, P. O. Box MG-11, Romania

E-mail

enciu.daniela@incas.ro

Keywords:

graphene nanoribbons, spin filtering, nanosensors, spintronics, density functional theory

Abstract:

Nanostructures based on graphene nanoribbons (GNRs), studied in the present work, could provide a special interest in spintronic devices and (aero) space applications. More specifically, this article proposes the synthesis of a nanosensor based on active control and manipulation of spin degrees of freedom in the GNR. Different spin configurations of the Mn atoms are considered. The used physico-mathematical model to determine the spin transport and the transmission function is based on density functional theory, Kohn-Sham equations and the SIESTA package. Structures of this kind may serve in spatial applications which exploit the infrared atmospheric window.