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We study the conductance of an interconnect between two graphene leads formed by a single-atom carbon chain. Its dependence on the chemical potential and the number of atoms in the chain is qualitatively different from that in the case of…

介观与纳米尺度物理 · 物理学 2011-09-12 Wei Chen , A. V. Andreev , G. F. Bertsch

The electronic properties of interfaces between two different solids can differ strikingly from those of the constituent materials. For instance, metallic conductivity, and even superconductivity, have been recently discovered at interfaces…

材料科学 · 物理学 2009-11-13 H. Dias Alves , A. S. Molinari , H. Xie , A. F. Morpurgo

Unique electronic properties of self-organized Au atom chains on Ge(001) in novel c(8x2) long-range order are revealed by scanning tunneling microscopy. Along the nanowires an exceptionally narrow conduction path exists which is virtually…

强关联电子 · 物理学 2009-11-13 J. Schaefer , C. Blumenstein , S. Meyer , M. Wisniewski , R. Claessen

We report the observation of entanglement between a single trapped atom and a single photon at remote locations. The degree of coherence of the entangled atom-photon pair is verified via appropriate local correlation measurements, after…

量子物理 · 物理学 2009-11-13 W. Rosenfeld , F. Hocke , F. Henkel , M. Krug , J. Volz , M. Weber , H. Weinfurter

We have measured the trapping lifetime of magnetically trapped atoms in a cryogenic atom-chip experiment. An ultracold atomic cloud is kept at a fixed distance from a thin gold layer deposited on top of a superconducting trapping wire. The…

On the basis of ab-initio simulations, the value of strength of interatomic bonds in one-, two- and three-dimensional carbon crystals is obtained. It is shown that decreasing in dimensionality of crystal gives rise to nearly linear increase…

材料科学 · 物理学 2015-06-12 Sergey Kotrechko , Andrey Timoshevskii , Eugene Kolyvoshko , Yuriy Matviychuk

As silicon detectors in high energy physics experiments require increasingly complex assembly procedures, the availability of a wide variety of interconnect technologies provides more options for overcoming obstacles in generic R&D. Gold…

仪器与探测器 · 物理学 2015-06-03 C. Neher , R. L. Lander , A. Moskaleva , J. Pasner , M. Tripathi , M. Woods

The atom-bond connectivity (ABC) index is a degree-based molecular structure descriptor that can be used for modelling thermodynamic properties of organic chemical compounds. Motivated by its applicable potential, a series of investigations…

组合数学 · 数学 2016-10-11 Darko Dimitrov , Barbara Ikica , Riste Škrekovski

We report the first low temperature magnetotransport measurements on electrochemically fabricated atomic scale gold nanojunctions. As $T \to 0$, the junctions exhibit nonperturbatively large zero bias anomalies (ZBAs) in their differential…

介观与纳米尺度物理 · 物理学 2009-11-10 L. H. Yu , D. Natelson

Atomically thin metallic chains serve as pivotal systems for studying quantum transport, with their conductance strongly linked to the orbital picture. Here, we report a non-monotonic electro-mechanical response in a gold-ferrocene…

介观与纳米尺度物理 · 物理学 2025-09-03 Biswajit Pabi , Štěpán Marek , Tal Klein , Arunabha Thakur , Richard Korytár , Atindra Nath Pal

We present results of electronic structure calculations for aluminium contacts of atomic size, based on density functional theory and the local density approximation. Addressing the atomic orbitals at the neck of the nanocontact, we find…

介观与纳米尺度物理 · 物理学 2009-11-11 Udo Schwingenschloegl , Cosima Schuster

A simple model for evaluating the thermal atomic transfer rates in nanosystems [EPL 94, 40002 (2011)] was developed to predict the chemical reaction rates of nanosystems with small gas molecules. The accuracy of the model was verified by MD…

介观与纳米尺度物理 · 物理学 2013-11-12 Zheng-Zhe Lin , Xi Chen

Emitters strongly coupled to a photonic crystal provide a powerful platform for realizing novel quantum light-matter interactions. Here we study the optical properties of a three-level artificial atomic chain coupled to a one-dimensional…

量子物理 · 物理学 2019-05-01 Guo-Zhu Song , Leong-Chuan Kwek , Fu-Guo Deng , Gui-Lu Long

Quantitative description of charge transport across tunneling and break-junction devices with novel superconductors encounters some problems not present, or not as severe for traditional superconducting materials. In this work, we explain…

超导电性 · 物理学 2016-08-11 E. Zhitlukhina , I. Devyatov , O. Egorov , M. Belogolovskii , P. Seidel

We explore the thermoelectric properties of gold atomic chains bridging gold electrodes by means of \textit{ab initio} and semi-empirical calculations, and heuristic reasoning. We predict the thermoelectric voltage induced by a temperature…

介观与纳米尺度物理 · 物理学 2018-09-28 Alireza Saffarzadeh , Firuz Demir , George Kirczenow

Bettini et al. [Nature Nanotech 1, 182 (2006)] reported the first experimental realization of linear atomic chains (LACs) composed of different atoms (Au and Ag). Different contents of Au and Ag were observed in the chains from what found…

材料科学 · 物理学 2015-06-16 Pedro Alves da Silva Autreto , Douglas S. Galvao , Emilio Artacho

We theoretically show how two impurity defects in a crystalline structure can be entangled through coupling with the crystal. We demonstrate this with a harmonic chain of trapped ions in which two ions of a different species are embedded.…

其他凝聚态物理 · 物理学 2015-06-11 Thomás Fogarty , Endre Kajari , Bruno G. Taketani , Alexander Wolf , Thomas Busch , Giovanna Morigi

We calculate the effect of electron-vibration coupling on conduction through atomic gold wires, which was measured in the experiments of Agra\"it et al. [Phys. Rev. Lett. 88, 216803 (2002)]. The vibrational modes, the coupling constants,…

介观与纳米尺度物理 · 物理学 2009-05-24 J. K. Viljas , J. C. Cuevas , F. Pauly , M. Häfner

In this note, we describe some of the progress recently made on questions regarding the chemical distance in two-dimensional critical percolation by the author, J. Hanson, and P. Sosoe [6, 7]. It is expected that the distance between points…

概率论 · 数学 2016-02-03 Michael Damron

The retarded long-range potentials for hydrogen and alkali-metal atoms in their ground states and a perfectly conducting wall are calculated. The potentials are given over a wide range of atom-wall distances and the validity of the…

原子物理 · 物理学 2008-02-03 M. Marinescu , A. Dalgarno , J. F. Babb