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InN nanowires were grown on Si<111> and Si<100> substrates by plasma-assisted molecular beam epitaxy using a thin AlN buffer layer at temperatures compatible with the thermal budget limitation imposed by Back-End-Of-Line processing.…

Self-assembled Ge wires with a height of only 3 unit cells and a length of up to 2 micrometers were grown on Si(001) by means of a catalyst-free method based on molecular beam epitaxy. The wires grow horizontally along either the [100] or…

The growth of controlled 1D carbon-based nanostructures on metal surfaces is a multistep process whose path, activation energies and intermediate metastable states strongly depend on the employed substrate. Whereas this process has been…

Nanowire (NW) arrays form spontaneously after high temperature annealing of a submonolayer deposition of Pt on a Ge(001) surface. These NWs are a single atom wide, with a length limited only by the underlying beta-terrace to which they are…

材料科学 · 物理学 2013-11-15 Danny E. P. Vanpoucke , Geert Brocks

In the field of molecular electronics thin films of molecules adsorbed on insulating surfaces are used as the functional building blocks of electronic devices. A control of the structural and electronic properties of the thin films is…

Self-assembled electronic devices, such as quantum dots or switchable molecules, need self-assembled nanowires as connections. We explore the growth of conducting Gd disilicide nanowires at step arrays on Si(111). Atomically smooth wires…

凝聚态物理 · 物理学 2009-11-07 J. L. McChesney , A. Kirakosian , R. Bennewitza , J. N. Crain , J. -L. Lin , F. J. Himpsel

Self assembled AlN nanowires (NWs) are grown by plasma assisted molecular beam epitaxy (PAMBE) on SiO2 / Si (111) substrates. Using a combination of in-situ reflective high energy electron diffraction and ex situ X ray diffraction (XRD), we…

材料科学 · 物理学 2024-02-02 Ž. Gačević , J. Grandal , Q. Guo , R. Kirste , M. Varela , Z. Sitar , M. A. Sánchez García

Atomic structures of quasi-one-dimensional (1D) character can be grown on semiconductor substrates by metal adsorption. Significant progress concerning study of their 1D character has been achieved recently by condensing noble metal atoms…

The Peierls instability in multi-channel metal nanowires is investigated. Hyperscaling relations are established for the finite-size-, temperature-, and wavevector-scaling of the electronic free energy. It is shown that the softening of…

介观与纳米尺度物理 · 物理学 2007-06-13 D. F. Urban , C. A. Stafford , Hermann Grabert

We report a discovery of superconductivity with Tc = 5.5 K in Nb2PdxSe5, in which one-dimensional (1D) Nb-Se chains existing along the b-direction hybridize each other to form the conducting b-c* plane. The magnetic susceptibility and…

Germanium nanostructures offer significant potential in developing advanced integrated circuit and disruptive quantum technologies, yet achieving both scalability and high carrier mobility remains a challenge in materials science. Here, we…

介观与纳米尺度物理 · 物理学 2025-07-01 Jian-Huan Wang , Ming Ming , Ding-Ming Huang , Jie-Yin Zhang , Yi Luo , Bin-Xiao Fu , Yi-Xin Chu , Yuan Yao , Hongqi Xu , Jian-Jun Zhang

We investigate electronic structures of Al quantum wires, both unsupported and supported on the (100) NaCl surface, using the density-functional theory. We confirm that unsupported nanowires, constrained to be linear, show magnetization…

材料科学 · 物理学 2009-11-07 A. Ayuela , H. Räbiger , M. J. Puska , R. M. Nieminen

Silicon self-assembly at step edges in the initial stage of homoepitaxial growth on a vicinal Si(111) surface is studied by scanning tunneling microscopy (STM). The resulting atomic structures change dramatically from a parallel array of…

材料科学 · 物理学 2007-05-23 T. Sekiguchi , S. Yoshida , K. M. Itoh

We report on the selective-area chemical beam epitaxial growth of InAs in-plane, one-dimensional (1-D) channels using patterned SiO$_{2}$-coated InP(001), InP(111)B, and InP(110) substrates to establish a scalable platform for topological…

We achieve, at room temperature, conductance enhancements over two orders of magnitude in single molecule circuits formed with polycyclic benzoquinoidal (BQn) diradicals upon increasing molecular length by ~0.5 nm. We find that this extreme…

介观与纳米尺度物理 · 物理学 2024-03-11 Brent Lawson , Efrain Vidal , Michael M. Haley , Maria Kamenetska

In the rapidly progressing field of organometal halide perovskites, the dimensional reduction could open up new opportunities for device applications. Herein, taking the recently synthesized trimethylsulfonium lead triiodide…

介观与纳米尺度物理 · 物理学 2020-06-08 Muhammad Ejaz Khan , Juho Lee , Seongjae Byeon , Yong-Hoon Kim

We study the molecular beam epitaxy of self-assembled Al$\mathrm{_{1-x}}$Sc$\mathrm{_{x}}$N nanowires on conductive TiN layers and demonstrate their application in piezoelectric nanogenerators. Wurtzite Al$\mathrm{_{1-x}}$Sc$\mathrm{_{x}}$N…

Recent experimental realization [J. Am. Chem. Soc., 127 (2005) 7328] of various dithiocarbamate self assembly on gold surface opens the possibility for use of dithiocarbamate linkers to anchor molecular wires to gold electrodes. In this…

材料科学 · 物理学 2007-05-23 Zhenyu Li , D. S. Kosov

Molecular wires with high electrical conductance are desirable components for future molecular-scale circuitry. However, their conductance typically decays exponentially with increasing length. Here, we report a novel discovery that the…

介观与纳米尺度物理 · 物理学 2024-10-08 Famin Yu , Rui-Qin Zhang , Zhigang Wang

Hybrid lead halide perovskites with 2D stacking structures have recently emerged as promising materials for optoelectronic applications. We report a method for growing 2D nanosheets of hybrid lead halide perovskites (I, Br and Cl), with…

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