Magnetic field- and light-driven spin molecular logic gates: A first-principles study

被引：2

作者：

He, Han-Bin ^{[1
]}

Zhao, Peng ^{[1
]}

机构：

[1] Univ Jinan, Sch Phys & Technol, Jinan 250022, Peoples R China

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2020年 / 121卷

关键词：

Molecular logic gate; Spin-polarized transport; Molecular device; Carbon nanotube; CONDUCTANCE;

D O I：

10.1016/j.physe.2020.114130

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We design a novel combinational molecular device consisting of a planar four-coordinate Fe molecule and a 15,16-dinitrile dihydropyrene/cyclophanediene molecule with carbon nanotube bridge and electrode, and investigate its spin-polarized transport properties using density functional theory and non-equilibrium Green's function formalism. The results show the spin-polarized currents are strongly dependent on the magnetic field and light modulations. Perfect spin filtering and large switching effects are realized. The results are explained by spin-resolved transmission spectra, energy levels of molecular projected self-consistent Hamiltonian orbitals, and their spatial distributions. Based on the spin-polarized transport properties, we propose spin molecular AND, OR and NOT gates.

引用

页数：6

共 25 条

[1] Smart molecules at work-mimicking advanced logic operations [J].

Andreasson, Joakim ;

Pischel, Uwe .

CHEMICAL SOCIETY REVIEWS, 2010, 39 (01) :174-188

[2]

[Anonymous], 1998, INTRO DIGITAL ELECT

[3] Density-functional method for nonequilibrium electron transport -: art. no. 165401 [J].

Brandbyge, M ;

Mozos, JL ;

Ordejón, P ;

Taylor, J ;

Stokbro, K .

PHYSICAL REVIEW B, 2002, 65 (16) :1654011-16540117

[4] Design principles and action of molecular logic gates [J].

Budyka, M. F. .

RUSSIAN CHEMICAL BULLETIN, 2014, 63 (08) :1656-1665

[5] GENERALIZED MANY-CHANNEL CONDUCTANCE FORMULA WITH APPLICATION TO SMALL RINGS [J].

BUTTIKER, M ;

IMRY, Y ;

LANDAUER, R ;

PINHAS, S .

PHYSICAL REVIEW B, 1985, 31 (10) :6207-6215

[6] A MOLECULAR PHOTOIONIC AND GATE BASED ON FLUORESCENT SIGNALING [J].

DE SILVA, AP ;

GUNARATNE, HQN ;

MCCOY, CP .

NATURE, 1993, 364 (6432) :42-44

[7] Molecular logic gates: the past, present and future [J].

Erbas-Cakmak, Sundus ;

Kolemen, Safacan ;

Sedgwick, Adam C. ;

Gunnlaugsson, Thorfinnur ;

James, Tony D. ;

Yoon, Juyoung ;

Akkaya, Engin U. .

CHEMICAL SOCIETY REVIEWS, 2018, 47 (07) :2228-2248

[8] Symmetry-dependent transport properties and magnetoresistance in zigzag silicene nanoribbons [J].

Kang, Jun ;

Wu, Fengmin ;

Li, Jingbo .

APPLIED PHYSICS LETTERS, 2012, 100 (23)

[9] Reversible conductance switching of single diarylethenes on a gold surface [J].

Katsonis, Nathalie ;

Kudernac, Tibor ;

Walko, Martin ;

van der Molen, Sense Jan ;

van Wees, Bart J. ;

Feringa, Ben L. .

ADVANCED MATERIALS, 2006, 18 (11) :1397-+

[10] Spin-valve effect in zigzag graphene nanoribbons by defect engineering [J].

Lakshmi, Sankaran ;

Roche, Stephan ;

Cuniberti, Gianaurelio .

PHYSICAL REVIEW B, 2009, 80 (19)

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