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We present a theoretical study on the electron transmission through the AB-BA stacking boundary in multilayer graphene. Using the tight-binding model and the transfer matrix method, we calculate the electron transmission probability through…

Materials Science · Physics 2015-08-05 Nguyen N. T. Nam , Mikito Koshino

Fe/Si multilayers with antiferromagnetic interlayer coupling have been grown via ion-beam sputtering on both glass and single-crystal substrates. High-angle x-ray diffraction measurements show that both sets of films have narrow Fe peaks,…

Condensed Matter · Physics 2009-10-28 A. Chaiken , R. P. Michel , C. -T. Wang

We study the variation of electron transmission through Au-S-benzene-S-Au junctions and related systems as a function of the structure of the Au:S contacts. For junctions with semi-infinite flat Au(111) electrodes, the highly coordinated…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 A. Grigoriev , J. Skoeldberg , G. Wendin , Z. Crljen

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

Using molecular dynamics simulation, we investigate transport properties of a classical two-dimensional electron system confined in a microchannel with a narrow constriction. As a function of the confinement strength of the constriction,…

Mesoscale and Nanoscale Physics · Physics 2012-10-18 Moto Araki , Hisao Hayakawa

Recent discovery of high T_c superconductivity in Fe-based compounds may have opened a new pathway to the room temperature superconductivity. The new materials feature FeAs layers instead of the signature CuO_2 planes of much-studied…

Superconductivity · Physics 2009-02-16 Vladimir Cvetkovic , Zlatko Tesanovic

We report on the spin-polarized electron injection through an Fe(100)/InAs(100) junction. The circularly polarized electroluminescence of injected electrons from epitaxially grown Fe thin film into InAs(100) in an external magnetic field is…

Epithelial cell monolayers exhibit traveling mechanical waves. We rationalize this observation thanks to a hydrodynamic description of the monolayer as a compressible, active and polar material. We show that propagating waves of the cell…

Biological Physics · Physics 2018-10-01 Shunsuke Yabunaka , Philippe Marcq

The presence of edge channels in the quantum Hall regime leads to dissipationless charge transport over long distances. When graphene is interfaced with a magnetic material, the exchange interaction lifts the Landau levels spin degeneracy.…

Mesoscale and Nanoscale Physics · Physics 2026-02-10 Maxen Cosset-Chéneau , Boxuan Yang , Bart J. van Wees

This paper reports that ~10-nm-thick FeSe thin films exhibit insulator-like behavior in terms of the temperature dependence of their electrical resistivity even though bulk FeSe has a metallic electronic structure that has been confirmed by…

Strongly Correlated Electrons · Physics 2019-01-28 Kota Hanzawa , Yuta Yamaguchi , Yukiko Obata , Satoru Matsuishi , Hidenori Hiramatsu , Toshio Kamiya , Hideo Hosono

The possibility of electron beam guiding is theoretically explored on the surface of a topological insulator through the proximity interaction with a magnetic material. The electronic band modification induced by the exchange coupling at…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 Xiaodong Li , Ki Wook Kim

The manipulation of the antiferromagnetic interlayer coupling in the epitaxial Fe/Cr/Fe(001) trilayer system by moderate 5 keV He ion beam irradiation has been investigated experimentally. It is shown that even for irradiation with very low…

The excitation of the spin degrees of freedom of an adsorbed atom by tunneling electrons is computed using a strong coupling theory. The excitation process is shown to be a sudden switch between the initial state determined by the…

Mesoscale and Nanoscale Physics · Physics 2009-04-29 Nicolás Lorente Jean-Pierre Gauyacq

Understanding the microscopic spatio-temporal dynamics of nonequilibrium charge carriers in heterosystems promises optimization of process and device design towards desired energy transfer. Hot electron transport is governed by scattering…

A time domain approach to probe hot carrier-induced spin dynamics is demonstrated. The experiments are performed in epitaxial Au/Fe/MgO(001), where spin-polarized hot carriers are excited in the Fe layer by 35 fs laser pulses. They…

FeCl2 is a promising single-layer material with sizeable magnetic susceptibility and insulating character that can be easily grown by molecular beam epitaxy on various surfaces. In order to include it into the select palette of van der…

Spin polarization of the tunnel conductivity has been studied for Fe/GaAs junctions with Schottky barriers. It is shown that band matching of resonant interface states within the Schottky barrier defines the sign of spin polarization of…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 S. Honda , H. Itoh , J. Inoue , H. Kurebayashi , T. Trypiniotis , C. H. W. Barnes , A. Hirohata , J. A. C. Bland

Geometry incommensurability between weakly coupled shells in multi-walled carbon nanotubes is shown to be the origin of unconventional electronic conduction mechanism, power-law scaling of the conductance, and remarkable magnetotransport…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Stephan Roche , François Triozon , Angel Rubio , Didier Mayou

We report on electronic transport calculations for self-assembled mono-layers (SAM) of 1,4-phenylene diisocyanide on Au(111) contacts. Experimentally one observes more structure (i.e peaks) within the measured conductance curve for this…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Robert Dahlke , Ulrich Schollwoeck

For antiferromagnetically coupled Fe/Cr multilayers the low field contribution to the resistivity, which is caused by the domain walls, is strongly enhanced at low temperatures. The low temperature resistivity varies according to a power…

Materials Science · Physics 2009-11-10 F. G. Aliev , R. Schad , A. Volodin , K. Temst , C. Van Haesendonck , Y. Bruynseraede , I. Vavra , V. K. Dugaev , R. Villar