Xiying Li、Xuehu Ma、Zhong Lan2010-02-12Langmuir
We have fabricated a series of textured silicon surfaces decorated by square arrays of pillars whose radius and pitch can be adjusted independently. These surfaces possessed a hydrophobic/superhydrophobic property after silanization. The dynamic behavior of water droplets impacting these structured surfaces was examin…
Adhesion, Friction, and Surface InteractionsAdvanced Sensor and Energy Harvesting MaterialsSurface Modification and Superhydrophobicity
Z. W. Wang、Outi Toikkanen、F. Yin 等 6 位作者2010-02-12Journal of the American Chemical Society
Mass spectrometry of supported, monolayer-protected, nominally Au(38) (MP-Au(38)) clusters is performed via quantitative High Angle Annular Dark Field-Scanning Transmission Electron Microscopy (HAADF-STEM) using size-selected Au(N) clusters (N = 25, 38, 55) as mass standards. With the intensity due to the (presumed) 2…
Gold and Silver Nanoparticles Synthesis and ApplicationsNanocluster Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniques
Giannis Mpourmpakis、Antonis N. Andriotis、Dionisios G. Vlachos2010-02-12Nano Letters
The design and performance optimization of future nanocatalysts will depend on our understanding of adsorbate-metal interactions. Using first principle calculations, we identify suitable descriptors, namely, the coordination number and curvature angle of the surface Au atoms, capable of predicting the CO binding stren…
Mass Spectrometry Techniques and ApplicationsCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions
Rachid Karmouch、Guy G. Ross2010-02-12The Journal of Physical Chemistry C
Measurements of the water contact angle as a function of temperature down to freezing gives valuable information for the development of anti-icing coatings. Advancing (ACA) and receding (RCA) contact angles were measured by depositing drops of water on different material surfaces for temperatures ranging from room tem…
Icing and De-icing TechnologiesAdhesion, Friction, and Surface InteractionsSurface Modification and Superhydrophobicity
Daiyu Kondo、Shintaro Sato、Katsunori Yagi 等 7 位作者2010-02-12Applied Physics Express
Low-Temperature Synthesis of Graphene and Fabrication of Top-Gated Field Effect Transistors without Using Transfer Processes, Kondo, Daiyu, Sato, Shintaro, Yagi, Katsunori, Harada, Naoki, Sato, Motonobu, Nihei, Mizuhisa, Yokoyama, Naoki
Nanowire Synthesis and ApplicationsGraphene research and applicationsSemiconductor materials and devices
Ji Ma、Lei Shi、Deng‐Ke Yang2010-02-12Applied Physics Express
We developed a bistable polymer stabilized cholesteric texture (PSCT) light shutter which can be switched between a transparent state and an opaque state by voltage pulses. The PSCT light shutter is switched to a transparent state by a low frequency voltage pulse and remains transparent after the pulse. It is switched…
Electrowetting and Microfluidic TechnologiesPhotonic Crystals and ApplicationsLiquid Crystal Research Advancements
Heejun Yang、Andrew J. Mayne、Mohamed Seghir Boucherit 等 6 位作者2010-02-12Nano Letters
Electron scattering at graphene edges is expected to make a crucial contribution to the electron transport in graphene nanodevices by producing quantum interferences. Atomic-scale scanning tunneling microscopy (STM) topographies of different edge structures of monolayer graphene show that the localization of the elect…
Carbon Nanotubes in CompositesGraphene research and applicationsAdvancements in Battery Materials
Zhongkui Tan、Vijay Patel、Konstantin K. Likharev 等 5 位作者2010-02-12arXiv
We have studied resistive bistability (memory) effects in junctions based on metal oxides, with a focus on sample-to-sample reproducibility which is necessary for the use of such junctions as crosspoint devices of hybrid CMOS/nanoelectronic circuits. Few-nm-thick layers of NbOx, CuOx and TiOx have been formed by therm…
Mesoscale and Nanoscale PhysicsMaterials Science
Kazuma Eto、A. A. Taskin、Kouji Segawa 等 4 位作者2010-02-12arXiv
We measured magnetotransport properties of PbS single crystals which exhibit the quantum linear magnetoresistance (MR) as well as the static skin effect that creates a surface layer of additional conductivity. The Shubnikov-de Haas oscillations in the longitudinal MR signify the peculiar role of spin-orbit coupling. I…
Mesoscale and Nanoscale PhysicsMaterials Science
Lasse Laurson、M. -Carmen Miguel、Mikko J. Alava2010-02-12arXiv
Dislocation assemblies exhibit a jamming or yielding transition at a critical external shear stress value $σ=σ_c$. Nevertheless the nature of this transition has not been ascertained. Here we study the heterogeneous and collective nature of dislocation dynamics within a crystal plasticity model close to $σ_c$, by cons…
Materials Sciencecond-mat.stat-mech
T. Korn、M. Kugler、M. Griesbeck 等 10 位作者2010-02-12arXiv
For the realisation of scalable solid-state quantum-bit systems, spins in semiconductor quantum dots are promising candidates. A key requirement for quantum logic operations is a sufficiently long coherence time of the spin system. Recently, hole spins in III-V-based quantum dots were discussed as alternatives to elec…
Materials ScienceMesoscale and Nanoscale Physics
Tae‐Gon Cha、Yi Jin、Myoung‐Woon Moon 等 5 位作者2010-02-12Langmuir
Most naturally existing superhydrophobic surfaces have a dual roughness structure where the entire microtextured area is covered with nanoscale roughness. Despite numerous studies aiming to mimic the biological surfaces, there is a lack of understanding of the role of the nanostructure covering the entire surface. Her…
Adhesion, Friction, and Surface InteractionsSurface Modification and SuperhydrophobicityNanomaterials and Printing Technologies
Sergei V. Kalinin、Brian J. Rodriguez、J. D. Budai 等 7 位作者2010-02-12Physical Review B
Spatial variability of polarization relaxation kinetics in the relaxor ferroelectric $0.9\text{Pb}({\text{Mg}}_{1/3}{\text{Nb}}_{2/3}){\text{O}}_{3}\text{\ensuremath{-}}0.1{\text{PbTiO}}_{3}$ is studied using time-resolved piezoresponse force microscopy at room temperature. Both the statistical principal component and…
Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesMultiferroics and related materials
Zhenda Lu、Miaomiao Ye、Ni Li 等 5 位作者2010-02-12Angewandte Chemie International Edition
Mesoporous traps: The title clusters were fabricated through self-assembly of nanocrystals in emulsion droplets and subsequent protective calcination. The specific affinity offered by the metal oxide and the size-exclusion mechanism enabled by the mesoporous structure enable the use of these clusters for efficient enr…
Mesoporous Materials and CatalysisNanocluster Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniques
Titus Sandu、Radu I. Iftimie2010-02-12arXiv
The bandgap and band bowing parameter of semiconductor alloys are calculated with a fast and realistic approach. The method is a dielectric scaling approximation that is based on a scissor approximation. It adds an energy shift to the bandgap provided by the local density approximation (LDA) of the density functional…
Materials Sciencecond-mat.other
B. Geyer、G. L. Klimchitskaya、V. M. Mostepanenko2010-02-12arXiv
We investigate the thermal Casimir interaction between two magnetodielectric plates made of real materials. On the basis of the Lifshitz theory, it is shown that for diamagnets and for paramagnets in the broad sense (with exception of ferromagnets) the magnetic properties do not influence the magnitude of the Casimir…
Materials Sciencecond-mat.other
Erik Henriksen、Paul Cadden-Zimansky、Zhigang Jiang 等 10 位作者2010-02-12Physical Review Letters
We report a study of the cyclotron resonance (CR) transitions to and from the unusual n=0 Landau level (LL) in monolayer graphene. Unexpectedly, we find the CR transition energy exhibits large (up to 10%) and nonmonotonic shifts as a function of the LL filling factor, with the energy being largest at half filling of t…
Molecular Junctions and NanostructuresQuantum and electron transport phenomenaGraphene research and applications
A. Badinski、P. D. Haynes、J. R. Trail 等 4 位作者2010-02-12arXiv
Atomic force calculations within the variational and diffusion quantum Monte Carlo (VMC and DMC) methods are described. The advantages of calculating DMC forces with the "pure" rather than the "mixed" probability distribution are discussed. An accurate and practical method for calculating forces using the pure distrib…
physics.comp-phMaterials Science
J. Yamaguchi、A. Sekiyama、M. Y. Kimura 等 20 位作者2010-02-12arXiv
Dependence of the spectral functions on temperature and rare-earth substitution was examined in detail for Kondo semiconductor alloys Sm1-xEuxB6 and Yb1-xLuxB12 by bulk-sensitive photoemission. It is found that the 4f lattice coherence and intrinsic (small) energy gap are robust for SmB6 against the Eu substitution up…
Materials ScienceStrongly Correlated Electrons
Jin-Wu Jiang、Jian‐Sheng Wang、Baowen Li2010-02-12Physical Review B
The recent experiment C. G. Lee et al. [ Science 321, 385 (2008)] on the Young's modulus and third-order elastic stiffness of graphene are well explained in a very simple approach, where the graphene is described by a simplified system and the force constant for the nonlinear interaction is estimated from the Tersoff-…
Graphene research and applicationsCarbon Nanotubes in CompositesForce Microscopy Techniques and Applications