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Related papers: Spin filtering in transition-metal phthalocyanine …

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Metallorganic molecules have been proposed as excellent spin filters in molecular spintronics because of the large spin-polarization of their electronic structure. However, most of the studies involving spin transport, have disregarded…

Mesoscale and Nanoscale Physics · Physics 2015-04-29 P. N. Abufager , R. Robles , N. Lorente

The magnetic and electronic properties of metal phthalocyanines (MPc) and fluorinated metal phthalocyanines (F$_{16}$MPc) are studied by means of spin density functional theory (SDFT). Several metals (M) such as Ca, all first d-row…

Materials Science · Physics 2013-04-22 O. I. Arillo-Flores , M. M. Fadlallah , C. Schuster , U. Eckern , A. H. Romero

The magnetic and transport properties of the metal phthalocyanine (MPc) and F$_{16}$MPc (M = Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn and Ag) families of molecules in contact with S-Au wires are investigated by density functional theory within…

Mesoscale and Nanoscale Physics · Physics 2016-01-14 M. M. Fadlallah , U. Eckern , A. H. Romero , U. Schwingenschlögl

Using first principles calculations in the framework of Density Functional Theory, we investigated the electronic and transport properties of metal(II)-phthalocyanine (M(II)Pc) systems, both in a single molecule configuration and in a…

Soft Condensed Matter · Physics 2009-11-13 Arrigo Calzolari , Andrea Ferretti , Marco Buongiorno Nardelli

The use of single molecules to design electronic devices is an extremely challenging and fundamentally different approach to further downsizing electronic circuits. Two-terminal molecular devices such as diodes were first predicted [1] and,…

The organic spinterface describes the spin-polarized properties that develop, due to charge transfer, at the interface between a ferromagnetic metal (FM) and the molecules of an organic semiconductor. Yet, if the latter is also magnetic…

Density functional theory and nonequilibrium Green's function calculations have been used to explore spin-resolved transport through the high-spin state of an iron(II)sulfur single molecular magnet. Our results show that this molecule…

Materials Science · Physics 2017-04-25 Sherif Abdulkader Tawfik , Leigh Weston , X. Y. Cui , Simon Ringer , Catherine Stampfl

We present a systematic investigation of molecule-metal interactions for transition-metal phthalocyanines (TMPc, with TM = Fe, Co, Ni, Cu) adsorbed on Ag(100). Scanning tunneling spectroscopy and density functional theory provide insight…

Materials Science · Physics 2012-04-20 A. Mugarza , R. Robles , C. Krull , R. Korytar , N. Lorente , P. Gambardella

Electronic transport through a single-molecule magnet Mn$_{12}$ in a two-terminal set up is calculated using the non-equilibrium Green's function method in conjunction with density-functional theory. A single-molecule magnet Mn$_{12}$ is…

Materials Science · Physics 2010-01-28 Salvador Barraza-Lopez , Kyungwha Park , Víctor García-Suárez , Jaime Ferrer

Obtaining highly spin-polarized currents in molecular junctions is crucial and desirable for nanoscale spintronics devices. Motivated by our recent symmetry-based theoretical argument for complete blocking of one spin conductance channel in…

Mesoscale and Nanoscale Physics · Physics 2019-06-12 Dongzhe Li , Yannick J. Dappe , Alexander Smogunov

Graphene - transition metal phthalocyanine (G-MPc) hybrid systems constitute promising platforms for densely-packed single-molecule magnets (SMMs). Here, we selected iron(II) phthalocyanine (FePc) and investigated its interaction with…

Mesoscale and Nanoscale Physics · Physics 2021-04-08 Marcin Zemła , Kamil Czelej , Jacek Majewski

Electrically manipulating the quantum properties of nano-objects, such as atoms or molecules, is typically done using scanning tunnelling microscopes and lateral junctions. The resulting nanotransport path is well established in these model…

The effect of chemical doping on the ZSiNRs with Mn as passivating element replacing H atoms at one edge are investigated by first principles calculations.The structures optimized in the typical ferromagnetic and antiferromagnetic coupling…

Materials Science · Physics 2016-02-01 Changpeng Chen , Ziqing Zhu , Dace Zha , Meilan Qi , Jinping Wu

Individual magnetic molecules are promising building blocks for quantum technologies because of their chemical tunability, nanoscale dimensions, and ability to self-assemble into ordered arrays. However, harnessing their properties in…

We have performed a comparative study of the electronic properties of six different electron-doped metal phthalocyanine (MPc) compounds (ZnPc, CuPc, NiPc, CoPc, FePc, and MnPc), in which the electron density is controlled by means of…

Materials Science · Physics 2007-05-23 M. F. Craciun , S. Rogge , A. F. Morpurgo

Spin properties of organic molecules have attracted great interest for their potential applications in spintronic devices and quantum computing. Fe-tetraphenyl porphyrin (FeTPP) is of particular interest for its robust magnetic properties…

Mesoscale and Nanoscale Physics · Physics 2022-10-19 Mingjun Zhong , Qimeng Wu , Liang Ma , Jie Li , Yifan Wang , Yansong Wang , Xin Li , Yajie Zhang , Jingtao Lü , Yongfeng Wang

Ambipolar charge carrier transport in Copper phthalocyanine (CuPc) is studied experimentally in field-effect transistors and metal-insulator-semiconductor diodes at various temperatures. The electronic structure and the transport properties…

Mesoscale and Nanoscale Physics · Physics 2015-03-13 C. Schuster , M. Kraus , A. Opitz , W. Brütting , U. Eckern

We report an insulator-metal-insulator transition in films of five metal phthalocyanines (MPc) doped with alkali atoms. Electrical conduction measurements demonstrate that increasing the alkali concentration results in the formation of a…

Other Condensed Matter · Physics 2007-05-23 M. F. Craciun , S. Rogge , M. J. L. den Boer , S. Margadonna , K. Prassides , Y. Iwasa , A. F. Morpurgo

We examine electron transport through a single-molecule magnet Mn12 bridged between Au electrodes using the first-principles method. We find crucial features which were inaccessible in model Hamiltonian studies: spin filtering and a strong…

Materials Science · Physics 2015-05-14 Salvador Barraza-Lopez , Kyungwha Park , Victor Garcia-Suarez , Jaime Ferrer

The effect of magnetic STM-tip on electronic, magnetic and electronic transport properties through the molecule junction STM-tip-Co/CoPc/Co(111), has been investigated by mean of ab initio electronic structure calculations. The spin…

Quantum Physics · Physics 2025-02-25 Ali Jaafar , Tarek Khalil
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