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We review studies of vibrational energy transfer in a molecular junction geometry, consisting of a molecule bridging two heat reservoirs, solids or large chemical compounds. This setup is of interest for applications in molecular…

介观与纳米尺度物理 · 物理学 2016-06-22 Dvira Segal , Bijay Kumar Agarwalla

Altermagnets (AMs) - magnetic materials that have spin-split bandstructure with zero net spin polarization can be classified as weak or strong depending upon the strength of altermagnetic term in the Hamiltonian. We theoretically…

介观与纳米尺度物理 · 物理学 2026-02-18 Shubham Ghadigaonkar , Sachchidanand Das , Abhiram Soori

We have performed a density functional theory study of the possible layered geometries occurring after dehydrogenation of a self-assembled monolayer (SAM) of biphenyl-thiol molecules (BPTs) adsorbed on a Au(111), as it has been…

介观与纳米尺度物理 · 物理学 2011-11-10 Pepa Cabrera-Sanfelix , Andrés Arnau , Daniel Sánchez-Portal

Solid-state ionic conduction is a key enabler of electrochemical energy storage and conversion. The mechanistic connections between material processing, defect chemistry, transport dynamics, and practical performance are of considerable…

材料科学 · 物理学 2022-08-04 Andrey D. Poletayev , James A. Dawson , M. Saiful Islam , Aaron M. Lindenberg

Understanding how the vibrational and thermal properties of solids are influenced by atomistic structural disorder is of fundamental scientific interest, and paramount to designing materials for next-generation energy technologies. While…

材料科学 · 物理学 2025-09-16 Kamil Iwanowski , Gábor Csányi , Michele Simoncelli

The contact resistance between two dissimilar semiconductors is determined by the carrier transmission through their interface. Despite the ubiquitous presence of interfaces, quantitative simulation of charge transport across such…

介观与纳米尺度物理 · 物理学 2022-05-25 Qichen Song , Jiawei Zhou , Gang Chen

Structural disorder is present in almost all experimental measurements of electronic transport through single molecules or molecular wires. To assess its influence on the conductance is computationally demanding, because a large number of…

介观与纳米尺度物理 · 物理学 2013-05-29 R. Maul , W. Wenzel

Using the tight-binding model and the generalized Green's function formalism, the effect of quantum interference on the electron transport through the benzene molecule in a semiconductor/benzene/semiconductor junction is numerically…

介观与纳米尺度物理 · 物理学 2016-08-09 Javad Vahedi , Zahra Sartipi

C60 fullerene has been studied extensively, as it is considered to be a good candidate for building single-molecule junctions. Here, we theoretically demonstrate that the conductance of single-molecule junctions based on a newly discovered…

介观与纳米尺度物理 · 物理学 2015-11-19 Chengbo Zhu , Xiaolin Wang

We report the first clear observation of interfacial superconductivity on top of FeTe(FT) covered by one quintuple-layer Bi$_2$Te$_3$(BT) forming van-der-Waals heterojunction. Both transport and scanning tunneling spectroscopy measurements…

We have probed the interface of a ferromagnetic/semiconductor (FM/SC) heterojunction by a combined high resolution photoemission spectroscopy and x-ray photoelectron diffraction study. Fe/ZnSe(001) is considered as an example of a very low…

A surface-adsorbed molecule is contacted with the tip of a scanning tunneling microscope (STM) at a pre-defined atom. On tip retraction, the molecule is peeled off the surface. During this experiment, a two-dimensional differential…

介观与纳米尺度物理 · 物理学 2024-01-30 C. Toher , R. Temirov , A. Greuling , F. Pump , M. Kaczmarski , M. Rohlfing , G. Cuniberti , F. S. Tautz

In the field of molecular electronics, particularly in quantum transport studies, the orientation of molecules plays a crucial role. This orientation, with respect to the electrodes, can be defined through the cavity of ring-shaped…

材料科学 · 物理学 2023-02-17 A. Martinez-Garcia , T. de Ara , L. Pastor-Amat , C. Untiedt , E. B. Lombardi , W. Dednam , C. Sabater

We report a combined experimental (C-AFM and SThM) and theoretical (DFT) study of the thermoelectric properties of molecular junctions made of self-assembled monolayers on Au of thiolated benzothieno-benzothiophene (BTBT) and alkylated BTBT…

介观与纳米尺度物理 · 物理学 2024-11-13 Sergio Gonzalez-Casal , Rémy Jouclas , Imane Arbouch , Yves Geerts , Colin van Dyck , Jérôme Cornil , Dominique Vuillaume

The effects of water wetting conditions on the transport properties of molecular nano-junctions are investigated theoretically by using a combination of classical molecular dynamics and first principles electronic transport calculations.…

介观与纳米尺度物理 · 物理学 2015-05-18 I. Rungger , X. Chen , U. Schwingenschlögl , S. Sanvito

Redox molecular junctions are molecular conduction junctions that involve more than one oxidation state of the molecular bridge. This property is derived from the ability of the molecule to transiently localize transmitting electrons,…

介观与纳米尺度物理 · 物理学 2013-06-21 Agostino Migliore , Abraham Nitzan

Electron transport through a diatomic molecular tunnel junction shows wave like interference phenomenon. By using Keldysh non-equilibrium Green's function (NEGF) theory, we have explicitly presented current and differential conductance…

介观与纳米尺度物理 · 物理学 2012-12-18 Muhammad Imran

The description of the chemical bond between a solid surface and an atom or a molecule is the fundamental basis for understanding a broad range of scientific problems in heterogeneous catalysis, semiconductor device fabrication, and fuel…

材料科学 · 物理学 2019-10-02 Liping Yu , Qimin Yan , Adrienn Ruzsinszky

In this paper we present the experimental realization of a Nb tunnel junction connected to a high-gap superconducting NbTiN embedding circuit. We investigate relaxation of nonequilibrium quasiparticles in a small volume Au layer between the…

仪器与探测器 · 物理学 2014-12-11 Stefan Selig , Marc Peter Westig , Karl Jacobs , Michael Schultz , Netty Honingh

In this paper, we explore the effect of H and its bonding configurations on the defect state density and orbital localization of hydrogenated amorphous Si (a-Si:H)/crystalline Si (c-Si) heterostructures using density functional theory (DFT)…

材料科学 · 物理学 2020-12-01 Reza Vatan Meidanshahi , Stephen M. Goodnick , Dragica Vasileska