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An atomically flat interface is achieved between face-centered cubic Al and diamond lattice Ge via molecular beam epitaxy (MBE). Based on the measurements of scanning tunneling microscopy (STM), we demonstrate an atomically resolved lateral…

Mesoscale and Nanoscale Physics · Physics 2025-10-10 Ding-Ming Huang , Jian-Huan Wang , Jie-Yin Zhang , Yuan Yao , H. Q. Xu , Jian-Jun Zhang

The structural, electronic, and magnetic properties of (100)-oriented Co$_{2}$MnAl/MgO and Co$_{2}$MnAl/GaAs heterostructures are investigated using plane-wave pseudopotential density functional theory. For the Co$_{2}$MnAl/MgO, CoCo-MgMg,…

Materials Science · Physics 2025-08-25 Amar Kumar , Mitali , Sujeet Chaudhary , Sharat Chandra

The interlayer magnetoresistance of a quasi-two-dimensional layered metal with a d-wave pseudogap is calculated semiclassically. An expression for the interlayer resistivity as a function of the strength and direction of the magnetic field,…

Strongly Correlated Electrons · Physics 2009-06-08 M. F. Smith , Ross H. McKenzie

Using ab-initio calculations within the framework of Density Functional Theory (DFT), atomic structures and electronic properties of MoS2/HfO2 interface are investigated. The impact of interfacial oxygen concentration on the MoS2/HfO2…

Materials Science · Physics 2014-02-10 Santosh KC , Roberto C. Longo , Robert M. Wallace , Kyeongjae Cho

In a recent letter M. Lilly et al [PRL 82, 394 (1999)] have shown that a highly anisotropic state can arise in certain two dimensional electron systems. In the large square samples studied, resistances measured in the two perpendicular…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Steven H. Simon

Systematic exploration of amorphous ABC heterostructures revealed that nanoscale morphological modifications markedly improved their artificial bulk second-order susceptibility. These amorphous birefringent heterostructures were fabricated…

Copper-silver (CuAg) alloys are increasingly explored for applications in high-performance electrical and electronic systems, owing to their unique combination of high electrical and thermal conductivity and enhanced mechanical strength.…

Materials Science · Physics 2026-02-16 Krzysztof Wieczerzak , Grzegorz Cios , Piotr Bała , Johann Michler , Benedykt R. Jany

We explore the adsorption of MoS2 on a range of metal substrates by means of first-principles density functional theory calculations. Including van der Waals forces in the density functional is essential to capture the interaction between…

Materials Science · Physics 2016-02-03 M. Farmanbar , G. Brocks

Fabrication of low-RF loss GaN-on-Si HEMT stacks is critical to enable competitive front-end-modules for 5G and 6G applications. The main contribution to RF losses is the interface between the III-N layer and the HR Si wafer, more…

We report low-temperature resistance measurements in a modulation-doped, (311)A GaAs two-dimensional hole system as a function of applied in-plane strain. The data reveal a strong but anisotropic piezoresistance whose magnitude depends on…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 B. Habib , J. Shabani , E. P. De Poortere , M. Shayegan , R. Winkler

Interfaces govern the unique mechanical response of amorphous multilayers. Here, we examine nanoindentation hardness and deformation behaviour of amorphous-amorphous Ta$_2$O$_5$/SiO$_2$ nanolaminates with bilayer thicknesses ranging from 2…

Following significant progress in the visualization and characterization of Majorana end modes in hybrid systems of semiconducting nanowires and superconducting islands, much attention is devoted to the investigation of the electronic…

The electric density profile along the normal to the phase interface between aromatic hydrocarbon toluene and water has been studied by X-ray reflectometry using synchrotron radiation. According to the experimental data, the width of the…

Soft Condensed Matter · Physics 2018-09-27 Aleksey M. Tikhonov

Metal/semiconductor hybrids are artificially created structures presenting novel properties not exhibited by either of the component materials alone. Here we present a giant piezoresistance effect in a hybrid formed from silicon and…

Materials Science · Physics 2010-11-15 A. C. H. Rowe , A. Donoso-Barrera , Ch. Renner , S. Arscott

Superconductivity was recently observed in the iron-arsenic-based compounds with a superconducting transition temperature (Tc) as high as 56K [1-7], naturally raising comparisons with the high Tc copper oxides. The copper oxides have…

Superconductivity · Physics 2009-11-13 H. Q. Yuan , J. Singleton , F. F. Balakirev , S. A. Baily , G. F. Chen , J. L. Luo , N. L. Wang

Optical second-harmonic generation is demonstrated to be a sensitive probe of the buried interface between the lattice matched semiconductors gallium phosphide and silicon with (001) orientation. Rotational anisotropy measurements of SHG…

Mesoscale and Nanoscale Physics · Physics 2020-10-29 K. Brixius , A. Beyer , J. Güdde , M. Dürr , W. Stolz , K. Volz , U. Höfer

Ab-initio calculations have been used to study the influence of the interface morphology and, notably, of the exchange reaction on the electronic properties of Al/GaN (100) interfaces. In particular, the effects of interface structure (i.e.…

Materials Science · Physics 2009-10-31 S. Picozzi , A. Continenza , S. Massidda , A. J. Freeman , N. Newman

Anthracyne (2DDA). 2DDA consists of chains of Dewar-anthracenes connected by acetylenic linkages. DFT-based simulations show that 2DDA is thermally stable and exhibits no imaginary phonon modes, confirming its dynamic stability. 2DDA is…

Performing the first-principles calculations, we investigate the anisotropy in the superconducting state of iron-based superconductors to gain an insight into their potential applications. The anisotropy ratio $\gamma_\lambda$ of the c-axis…

Superconductivity · Physics 2015-05-14 Hiroki Nakamura , Masahiko Machida , Tomio Koyama , Noriaki Hamada

We study the chemical nature of the bonding of an oxide layer to the parent metal. In order to disentangle chemical effects from strain/misfit, Ti(10$\bar{1}$0)/TiO$_{2}$(100) interface has been chosen. We use the density functional…

Materials Science · Physics 2012-12-10 Linggang Zhu , Graeme J. Ackland
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