Scientific Reports Physics Table of Contents e-alert: 11 February 2014

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11 February 2014      • Visit Scientific Reports • Submit your manuscript to Scientific Reports     Welcome to your Table of Contents e-alert for Scientific Reports               Physical Sciences               Light Manipulation for Organic Optoelectronics Using Bio-inspired Moth's Eye Nanostructures ▶     Lei Zhou, Qing-Dong Ou, Jing-De Chen et al.     Organic-based optoelectronic devices, including light-emitting diodes (OLEDs) and solar cells (OSCs) hold great promise as low-cost and large-area electro-optical devices and …             Magnetic Exchange Coupling and Anisotropy of 3d Transition Metal Nanowires on Graphyne ▶     Junjie He, Pan Zhou, N. Jiao et al.     Applying two-dimensional monolayer materials in nanoelectronics and spintronics is hindered by a lack of ordered and separately distributed spin structures. We investigate the …             Pyro-synthesis of a high rate nano-Li3V2(PO4)3/C cathode with mixed morphology for advanced Li-ion batteries ▶     Jungwon Kang, Vinod Mathew, Jihyeon Gim et al.     A monoclinic Li3V2(PO4)3/C (LVP/C) cathode for lithium battery applications was synthesized by a polyol-assisted pyro-synthesis. The polyol in the present synthesis acts not only …             Hydrogen Photogeneration Promoted by Efficient Electron Transfer from Iridium Sensitizers to Colloidal MoS2 Catalysts ▶     Yong-Jun Yuan, Zhen-Tao Yu, Xiao-Jie Liu et al.     We report the utilization of colloidal MoS2 nanoparticles (NPs) for multicomponent photocatalytic water reduction systems in cooperation with a series of cyclometalated Ir(III) …             Tuning the size and configuration of nanocarbon microcapsules: aqueous method using optical tweezers ▶     Hiroshi Frusawa, Youei Matsumoto     To date, optical manipulation techniques for aqueous dispersions have been developed that deposit and/or transport nanoparticles not only for fundamental studies of colloidal …             Edge contact dependent spin transport for n-type doping zigzag-graphene with asymmetric edge hydrogenation ▶     Xiaoqing Deng, Zhenhua Zhang, Guiping Tang et al.     Spin transport features of the n-type doping zigzag graphene nanoribbons (ZGNRs) with an edge contact are investigated by first principle methods, where ZGNRs are C–H2 bonded at …             Indistinguishability and correlations of photons generated by quantum emitters undergoing spectral diffusion ▶     Konstantin E. Dorfman, Shaul Mukamel     Photon-based quantum information processing is based on manipulating multi photon interference. We focus on the Hong-Ou-Mandel (HOM) dip in the photon coincidence rate which …             Cross-border Portfolio Investment Networks and Indicators for Financial Crises ▶     Andreas C. Joseph, Stephan E. Joseph, Guanrong Chen     Cross-border equity and long-term debt securities portfolio investment networks are analysed from 2002 to 2012, covering the 2008 global financial crisis. They serve as …             Metal-Semiconductor Barrier Modulation for High Photoresponse in Transition Metal Dichalcogenide Field Effect Transistors ▶     Hua-Min Li, Dae-Yeong Lee, Min Sup Choi et al.     A gate-controlled metal-semiconductor barrier modulation and its effect on carrier transport were investigated in two-dimensional (2D) transition metal dichalcogenide (TMDC) field …             Geometry of Quantum Computation with Qudits ▶     Ming-Xing Luo, Xiu-Bo Chen, Yi-Xian Yang et al.     The circuit complexity of quantum qubit system evolution as a primitive problem in quantum computation has been discussed widely. We investigate this problem in terms of qudit …             Enhanced Thermal Conductivity and Viscosity of Nanodiamond-Nickel Nanocomposite Nanofluids ▶     L. Syam Sundar, Manoj K. Singh, E. Venkata Ramana et al.     We report a new type of magnetic nanofluids, which is based on a hybrid composite of nanodiamond and nickel (ND-Ni) nanoparticles. We prepared the nanoparticles by an in-situ …             Time varying networks and the weakness of strong ties ▶     Márton Karsai, Nicola Perra, Alessandro Vespignani     In most social and information systems the activity of agents generates rapidly evolving time-varying networks. The temporal variation in networks' connectivity patterns and the …             Maxwell's Demons Everywhere: Evolving Design as the Arrow of Time ▶     Adrian Bejan     Science holds that the arrow of time in nature is imprinted on one-way (irreversible) phenomena, and is accounted for by the second law of thermodynamics. Here I show that the …             Why is anatase a better photocatalyst than rutile? - Model studies on epitaxial TiO2 films ▶     Tim Luttrell, Sandamali Halpegamage, Junguang Tao et al.     The prototypical photocatalyst TiO2 exists in different polymorphs, the most common forms are the anatase- and rutile-crystal structures. Generally, anatase is more active than …             Controling the coupling properties of active ultrahigh-Q WGM microcavities from undercoupling to selective amplification ▶     A. Rasoloniaina, V. Huet, T. K. N. Nguyên et al.     Ultrahigh-quality (Q) factor microresonators have a lot of applications in the photonics domain ranging from low-threshold nonlinear optics to integrated optical sensors. …             Bifacial dye-sensitized solar cells: A strategy to enhance overall efficiency based on transparent polyaniline electrode ▶     Jihuai Wu, Yan Li, Qunwei Tang et al.     Dye-sensitized solar cell (DSSC) is a promising solution to global energy and environmental problems because of its clean, low-cost, high efficiency, good durability, and easy …             Pressure controlled transition into a self-induced topological superconducting surface state ▶     Zhiyong Zhu, Yingchun Cheng, Udo Schwingenschlögl     Ab-initio calculations show a pressure induced trivial-nontrivial-trivial topological phase transition in the normal state of 1T-TiSe2. The pressure range in which the nontrivial …             High performance catalytic distillation using CNTs-based holistic catalyst for production of high quality biodiesel ▶     Dongdong Zhang, Dali Wei, Qi Li et al.     For production of biodiesel from bio oils by heterogeneous catalysis, high performance catalysts of transesterification and the further utilization of glycerol have been the two …             Spin transport study in a Rashba spin-orbit coupling system ▶     Fuhong Mei, Shan Zhang, Ning Tang et al.     One of the most important topics in spintronics is spin transport. In this work, spin transport properties of two-dimensional electron gas in AlxGa1-xN/GaN heterostructure were …             Reveal quantum correlation in complementary bases ▶     Shengjun Wu, Zhihao Ma, Zhihua Chen et al.     An essential feature of genuine quantum correlation is the simultaneous existence of correlation in complementary bases. We reveal this feature of quantum correlation by defining …             Role of Ge:As ratio in controlling the light-induced response of a-GexAs35−xSe65 thin films ▶     Pritam Khan, H. Jain, K. V. Adarsh     In this paper, we present interesting results on the quantification of photodarkening (PD), photobleaching (PB) and transient PD (TPD) in a-GexAs35−xSe65 thin films as a function …             A Robust Organic Dye for Dye Sensitized Solar Cells Based on Iodine/Iodide Electrolytes Combining High Efficiency and Outstanding Stability ▶     Damien Joly, Laia Pellejà, Stéphanie Narbey et al.     Among the new photovoltaic technologies, the Dye-Sensitized Solar Cell (DSC) is becoming a realistic approach towards energy markets such as BIPV (Building Integrated …             Induced effects of advanced oxidation processes ▶     Peng Liu, Chaolin Li, Zhuanjun Zhao et al.     Hazardous organic wastes from industrial, military, and commercial activities represent one of the greatest challenges to human beings. Advanced oxidation processes (AOPs) are …             Growth rate controlled synthesis of hierarchical Bi2S3/In2S3 core/shell microspheres with enhanced photocatalytic activity ▶     Juan Zhou, Guohui Tian, Yajie Chen et al.     Core/shell heterostructure composite has great potential applications in photocatalytic field because the introduction of core can remarkably improve charge transport and enhance …             Rapid interferometric imaging of printed drug laden multilayer structures ▶     Niklas Sandler, Ivan Kassamakov, Henrik Ehlers et al.     The developments in printing technologies allow fabrication of micron-size nano-layered delivery systems to personal specifications. In this study we fabricated layered polymer …             Dependence of cancer cell adhesion kinetics on integrin ligand surface density measured by a high-throughput label-free resonant waveguide grating biosensor ▶     Norbert Orgovan, Beatrix Peter, Szilvia Bősze et al.     A novel high-throughput label-free resonant waveguide grating (RWG) imager biosensor, the Epic® BenchTop (BT), was utilized to determine the dependence of cell spreading kinetics …             Strain glass transition in a multifunctional β-type Ti alloy ▶     Yu Wang, Jinghui Gao, Haijun Wu et al.     Recently, a class of multifunctional Ti alloys called GUM metals attracts tremendous attentions for their superior mechanical behaviors (high strength, high ductility and …             Image Size Scalable Full-parallax Coloured Three-dimensional Video by Electronic Holography ▶     Hisayuki Sasaki, Kenji Yamamoto, Yasuyuki Ichihashi et al.     In electronic holography, various methods have been considered for using multiple spatial light modulators (SLM) to increase the image size. In a previous work, we used a …             Membranes with well-defined ions transport channels fabricated via solvent-responsive layer-by-layer assembly method for vanadium flow battery ▶     Wanxing Xu, Xianfeng Li, Jingyu Cao et al.     In this work we presented a general strategy for the fabrication of membranes with well-defined ions transport channels through solvent-responsive layer-by-layer assembly …             Quantifying Information Flow During Emergencies ▶     Liang Gao, Chaoming Song, Ziyou Gao et al.     Recent advances on human dynamics have focused on the normal patterns of human activities, with the quantitative understanding of human behavior under extreme events remaining a …             All-optical control of ultrafast photocurrents in unbiased graphene ▶     Petr A. Obraztsov, Tommi Kaplas, Sergey V. Garnov et al.     Graphene has recently become a unique playground for studying light-matter interaction effects in low-dimensional electronic systems. Being of strong fundamental importance, these …             Effect of concentration gradient on ionic current rectification in polyethyleneimine modified glass nano-pipettes ▶     Xiao Long Deng, Tomohide Takami, Jong Wan Son et al.     Ion current rectification dependent on the concentration gradient of KCl solutions was systematically investigated in polyethyleneimine modified glass nano-pipettes with inner …             Dynamic void distribution in myoglobin and five mutants ▶     Yingying Jiang, Serdal Kirmizialtin, Isaac C. Sanchez     Globular proteins contain cavities/voids that play specific roles in controlling protein function. Elongated cavities provide migration channels for the transport of ions and …             Ultrasonic force microscopy for nanomechanical characterization of early and late-stage amyloid-β peptide aggregation ▶     Claire Tinker-Mill, Jennifer Mayes, David Allsop et al.     The aggregation of amyloid-β peptides into protein fibres is one of the main neuropathological features of Alzheimer's disease (AD). While imaging of amyloid-β aggregate …             Nano Conductive Ceramic Wedged Graphene Composites as Highly Efficient Metal Supports for Oxygen Reduction ▶     Peng Wu, Haifeng Lv, Tao Peng et al.     A novel conductive ceramic/graphene nanocomposite is prepared to prohibit the re-stacking of reduced graphene oxide (RGO) by wedging zirconium diboride (ZrB2) nanoparticles (NPs) …             Low temperature reduction of free-standing graphene oxide papers with metal iodides for ultrahigh bulk conductivity ▶     Chenyang Liu, Feng Hao, Xiaochong Zhao et al.     Here we report a green and facile route for highly efficient reduction of free-standing graphene oxide (GO) papers with metal iodide aqueous solutions at low cost. The metal …             Resolving the role of femtosecond heated electrons in ultrafast spin dynamics ▶     J. Mendil, P. Nieves, O. Chubykalo-Fesenko et al.     Magnetization manipulation is essential for basic research and applications. A fundamental question is, how fast can the magnetization be reversed in nanoscale magnetic storage …             All-Graphene Planar Self-Switching MISFEDs, Metal-Insulator-Semiconductor Field-Effect Diodes ▶     Feras Al-Dirini, Faruque M. Hossain, Ampalavanapillai Nirmalathas et al.     Graphene normally behaves as a semimetal because it lacks a bandgap, but when it is patterned into nanoribbons a bandgap can be introduced. By varying the width of these …             Autocatalytic Oxidization of Nanosilver and Its Application to Spectral Analysis ▶     Guiqing Wen, Yanghe Luo, Aihui Liang et al.     The stable yellow nanosilver (AgNP) and blue nanosilver (AgNPB) sols were prepared by the NaBH4 procedure. The new nanocatalytic reaction of AgNP-NaCl-H2O2 was investigated by …             Controlling the shape of LiCoPO4 nanocrystals by supercritical fluid process for enhanced energy storage properties ▶     Quang Duc Truong, Murukanahally Kempaiah Devaraju, Yoshiyuki Ganbe et al.     Lithium-ion batteries offer promising opportunities for novel energy storage systems and future application in hybrid electric vehicles or electric vehicles. Cathode materials …             First Principles Prediction of the Magnetic Properties of Fe-X6 (X=S, C, N, O, F) Doped Monolayer MoS2 ▶     Nan Feng, Wenbo Mi, Yingchun Cheng et al.     Using first-principles calculations, we have investigated the electronic structure and magnetic properties of Fe-X6 clusters (X=S, C, N, O, and F) incorporated in 4 × 4 …             Controllable orientation of single silver nanowire using two fiber probes ▶     Xiaohao Xu, Chang Cheng, Hongbao Xin et al.     We report a strategy for realizing precise orientation of single silver nanowire using two fiber probes. By launching a laser of 980 nm wavelength into the two fibers, single …             Noble-metal-free plasmonic photocatalyst: hydrogen doped semiconductors ▶     Xiangchao Ma, Ying Dai, Lin Yu et al.     The unique capacity of localized surface plasmon resonance (LSPR) offers a new opportunity to overcome the limited efficiency of semiconductor photocatalyst. Here we unravel that …             Brownian Motion in a Speckle Light Field: Tunable Anomalous Diffusion and Selective Optical Manipulation ▶     Giorgio Volpe, Giovanni Volpe, Sylvain Gigan     The motion of particles in random potentials occurs in several natural phenomena ranging from the mobility of organelles within a biological cell to the diffusion of stars within …             Experimental observation of ferrielectricity in multiferroic DyMn2O5 ▶     Z. Y. Zhao, M. F. Liu, X. Li et al.     One of the major breakthroughs associated with multiferroicity in recent years is the discovery of ferroelectricity generated by specific magnetic structures in some magnetic …             Ta3N5-Pt nonwoven cloth with hierarchical nanopores as efficient and easily recyclable macroscale photocatalysts ▶     Shijie Li, Lisha Zhang, Huanli Wang et al.     Traditional nanosized photocatalysts usually have high photocatalytic activity but can not be efficiently recycled. Film-shaped photocatalysts on the substrates can be easily …             Regulating the Transport of DNA through Biofriendly Nanochannels in a Thin Solid Membrane ▶     Deqiang Wang, Stefan Harrer, Binquan Luan et al.     Channels formed by membrane proteins regulate the transport of water, ions or nutrients that are essential to cells' metabolism. Recent advances in nanotechnology allow us to …             Stellated Ag-Pt bimetallic nanoparticles: An effective platform for catalytic activity tuning ▶     Hui Liu, Feng Ye, Qiaofeng Yao et al.     The usefulness of Pt-based nanomaterials for catalysis can be greatly enhanced by coupling morphology engineering to the strategic presence of a second or even third metal. Here …             Near Field Enhanced Photocurrent Generation in P-type Dye-Sensitized Solar Cells ▶     Xiaobao Xu, Jin Cui, Junbo Han et al.     Over the past few decades, the field of p-type dye-sensitized solar cell (p-DSSC) devices has undergone tremendous advances, in which Cu-based delafossite nanocrystal is of prime …             Quantum-enhanced absorption refrigerators ▶     Luis A. Correa, José P. Palao, Daniel Alonso et al.     Thermodynamics is a branch of science blessed by an unparalleled combination of generality of scope and formal simplicity. Based on few natural assumptions together with the four …             Fully Solution-Processed Flexible Organic Thin Film Transistor Arrays with High Mobility and Exceptional Uniformity ▶     Kenjiro Fukuda, Yasunori Takeda, Makoto Mizukami et al.     Printing fully solution-processed organic electronic devices may potentially revolutionize production of flexible electronics for various applications. However, difficulties in …             Ultra-pure single wall carbon nanotube fibres continuously spun without promoter ▶     Catharina Paukner, Krzysztof K. K. Koziol     We report a new strategy towards the control of carbon nanotube (CNT) structure and continuous fibre formation using a floating catalyst direct spinning CVD process. In the …             Controllability of Vortex Domain Structure in Ferroelectric Nanodot: Fruitful Domain Patterns and Transformation Paths ▶     C. M. Wu, W. J. Chen, Yue Zheng et al.     Ferroelectric vortex domain structure which exists in low-dimensional ferroelectrics is being intensively researched for future applications in functional nanodevices. Here we …             Experimental observation of optical differentiation and optical Hilbert transformation using a single SOI microdisk chip ▶     Ting Yang, Jianji Dong, Li Liu et al.     Optical differentiation and optical Hilbert transformation play important roles in communications, computing, information processing and signal analysis in optical domain offering …             Broadband Polarization-Independent Perfect Absorber Using a Phase-Change Metamaterial at Visible Frequencies ▶     Tun Cao, Chen-wei Wei, Robert E. Simpson et al.     We report a broadband polarization-independent perfect absorber with wide-angle near unity absorbance in the visible regime. Our structure is composed of an array of thin Au …             Field-effect transistors based on cubic indium nitride ▶     Masaaki Oseki, Kana Okubo, Atsushi Kobayashi et al.     Although the demand for high-speed telecommunications has increased in recent years, the performance of transistors fabricated with traditional semiconductors such as silicon, …             Giant Up-Conversion Efficiency of InGaAs Quantum Dots in a Planar Microcavity ▶     Qinfeng Xu, Carlo Piermarocchi, Yuriy V. Pershin et al.     Self-assembled InGaAs quantum dots (QDs) were fabricated inside a planar microcavity with two vertical cavity modes. This allowed us to excite the QDs coupled to one of the …             Atomic-scale Chemical Imaging and Quantification of Metallic Alloy Structures by Energy-Dispersive X-ray Spectroscopy ▶     Ping Lu, Lin Zhou, M. J. Kramer et al.     Determination of atomic-scale crystal structure for nanostructured intermetallic alloys, such as magnetic alloys containing Al, Ni, Co (alnico) and Fe, is crucial for …                     • Careers & Jobs           naturejobs.com Science jobs of the week       Post Doctoral Researcher     University of Cologne            Postdoctoral fellow     University of Texas - MD Anderson Cancer Center            Research Associate     Imperial College London            Postdoctoral Research Fellow     The University of Queensland            Postdoctoral Research Scientist     University of Oxford            Postodoctoral Research Associates     University of Massachusett Medical School            Faculty Position     Bilkent University            Postdoctoral research fellow     L'Institut de rythmologie et modélisation cardiaque             PhD position     TU Dresden - Cluster of Excellence 'Center for Advancing Electronics Dresden' (cfaed)            Assistant Researcher     Lund University          No matter what your career stage, student, postdoc or senior scientist, you will find articles on naturejobs.com to help guide you in your science career. 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