Tuesday, December 2, 2014

Scientific Reports Physics Table of Contents e-alert: 2 December 2014

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  02 December 2014   
 
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Physical Sciences
 
 
 
 
 
 
 

Transition from linear- to nonlinear-focusing regime in filamentation

 
 

Khan Lim, Magali Durand, Matthieu Baudelet et al.

 
 

Laser filamentation in gases is often carried out in the laboratory with focusing optics to better stabilize the filament, whereas real-world applications of filaments frequently …

 
 
 
 
 
 

Structured metal thin film as an asymmetric color filter: the forward and reverse plasmonic halos

 
 

Fan Ye, Michael J. Burns, Michael J. Naughton

 
 

We observe asymmetric color filtering under unpolarized incidence in a structured metallic (Ag) film, where the center of an optically thick circular Ag disk surrounded by a step …

 
 
 
 
 
 

Correlation between micrometer-scale ripple alignment and atomic-scale crystallographic orientation of monolayer graphene

 
 

Jin Sik Choi, Young Jun Chang, Sungjong Woo et al.

 
 

Deformation normal to the surface is intrinsic in two-dimensional materials due to phononic thermal fluctuations at finite temperatures. Graphene's negative thermal expansion …

 
 
 
 
 
 

Exact solution for first-order synchronization transition in a generalized Kuramoto model

 
 

Xin Hu, S. Boccaletti, Wenwen Huang et al.

 
 

First-order, or discontinuous, synchronization transition, i.e. an abrupt and irreversible phase transition with hysteresis to the synchronized state of coupled oscillators, has …

 
 
 
 
 
 

Axial Plane Optical Microscopy

 
 

Tongcang Li, Sadao Ota, Jeongmin Kim et al.

 
 

We present axial plane optical microscopy (APOM) that can, in contrast to conventional microscopy, directly image a sample's cross-section parallel to the optical axis of an …

 
 
 
 
 
 

Parity independence of the zero-bias conductance peak in a nanowire based topological superconductor-quantum dot hybrid device

 
 

M. T. Deng, C. L. Yu, G. Y. Huang et al.

 
 

We explore the signatures of Majorana fermions in a nanowire based topological superconductor-quantum dot-topological superconductor hybrid device by charge transport …

 
 
 
 
 
 

From Rice Bran to High Energy Density Supercapacitors: A New Route to Control Porous Structure of 3D Carbon

 
 

Jianhua Hou, Chuanbao Cao, Xilan Ma et al.

 
 

Controlled micro/mesopores interconnected structures of three-dimensional (3D) carbon with high specific surface areas (SSA) are successfully prepared by carbonization and …

 
 
 
 
 
 

Influence of matching solubility parameter of polymer matrix and CNT on electrical conductivity of CNT/rubber composite

 
 

Seisuke Ata, Takaaki Mizuno, Ayumi Nishizawa et al.

 
 

We report a general approach to fabricate elastomeric composites possessing high electrical conductivity for applications ranging from wireless charging interfaces to stretchable …

 
 
 
 
 
 

A Unifying Framework for Measuring Weighted Rich Clubs

 
 

Jeff Alstott, Pietro Panzarasa, Mikail Rubinov et al.

 
 

Network analysis can help uncover meaningful regularities in the organization of complex systems. Among these, rich clubs are a functionally important property of a variety of …

 
 
 
 
 
 

Quantum correlation exists in any non-product state

 
 

Yu Guo, Shengjun Wu

 
 

Simultaneous existence of correlation in complementary bases is a fundamental feature of quantum correlation, and we show that this characteristic is present in any non-product …

 
 
 
 
 
 

Stretchable electronics based on Ag-PDMS composites

 
 

Alexandre Larmagnac, Samuel Eggenberger, Hanna Janossy et al.

 
 

Patterned structures of flexible, stretchable, electrically conductive materials on soft substrates could lead to novel electronic devices with unique mechanical properties …

 
 
 
 
 
 

Cooperative protofilament switching emerges from inter-motor interference in multiple-motor transport

 
 

David Ando, Michelle K. Mattson, Jing Xu et al.

 
 

Within living cells, the transport of cargo is accomplished by groups of molecular motors. Such collective transport could utilize mechanisms which emerge from inter-motor …

 
 
 
 
 
 

Ultrasensitive and fast detection of denaturation of milk by Coherent backscattering of light

 
 

Manish Verma, Dilip K. Singh, P. Senthilkumaran et al.

 
 

In this work, Coherence backscattering (CBS) of light has been used to detect the onset of denaturation of milk. The CBS cone shape and its enhancement factor are found to be …

 
 
 
 
 
 

General solution for quantitative dark-field contrast imaging with grating interferometers

 
 

M. Strobl

 
 

Grating interferometer based imaging with X-rays and neutrons has proven to hold huge potential for applications in key research fields conveying biology and medicine as well as …

 
 
 
 
 
 

Shaping plasmon beams via the controlled illumination of finite-size plasmonic crystals

 
 

J.-S. Bouillard, P. Segovia, W. Dickson et al.

 
 

Plasmonic crystals provide many passive and active optical functionalities, including enhanced sensing, optical nonlinearities, light extraction from LEDs and coupling to and …

 
 
 
 
 
 

Electron relaxation in the CdSe quantum dot - ZnO composite: prospects for photovoltaic applications

 
 

Karel Žídek, Mohamed Abdellah, Kaibo Zheng et al.

 
 

Quantum dot (QD)-metal oxide composite forms a “heart” of the QD-sensitized solar cells. It maintains light absorption and electron-hole separation in the system and has been …

 
 
 
 
 
 

Remarkable NO oxidation on single supported platinum atoms

 
 

Chaitanya K. Narula, Lawrence F. Allard, G. M. Stocks et al.

 
 

Our first-principles density functional theoretical modeling suggests that NO oxidation is feasible on fully oxidized single θ-Al2O3 supported platinum atoms via a modified …

 
 
 
 
 
 

Direct Nanoscale Imaging of Evolving Electric Field Domains in Quantum Structures

 
 

Rudra Sankar Dhar, Seyed Ghasem Razavipour, Emmanuel Dupont et al.

 
 

The external performance of quantum optoelectronic devices is governed by the spatial profiles of electrons and potentials within the active regions of these devices. For …

 
 
 
 
 
 

Probing Defects in Nitrogen-Doped Cu2O

 
 

Junqiang Li, Zengxia Mei, Lishu Liu et al.

 
 

Nitrogen doping is a promising method of engineering the electronic structure of a metal oxide to modify its optical and electrical properties; however, the doping effect …

 
 
 
 
 
 

Elastic Moduli of Permanently Densified Silica Glasses

 
 

T. Deschamps, J. Margueritat, C. Martinet et al.

 
 

Modelling the mechanical response of silica glass is still challenging, due to the lack of knowledge concerning the elastic properties of intermediate states of densification. An …

 
 
 
 
 
 

Predicting Node Degree Centrality with the Node Prominence Profile

 
 

Yang Yang, Yuxiao Dong, Nitesh V. Chawla

 
 

Centrality of a node measures its relative importance within a network. There are a number of applications of centrality, including inferring the influence or success of an …

 
 
 
 
 
 

Room temperature continuous–wave green lasing from an InGaN microdisk on silicon

 
 

M. Athanasiou, R. Smith, B. Liu et al.

 
 

Optically pumped green lasing with an ultra low threshold has been achieved using an InGaN/GaN based micro-disk with an undercut structure on silicon substrates. The micro-disks …

 
 
 
 
 
 

Plasmon-driven dimerization via S-S chemical bond in an aqueous environment

 
 

Lin Cui, Peijie Wang, Xiaowei Chen et al.

 
 

The surface-enhanced Raman scattering (SERS) spectra of thioanisole are experimentally investigated in an electrochemical environment in this study. Two Raman peaks, which depend …

 
 
 
 
 
 

Boost Up Carrier Mobility for Ferroelectric Organic Transistor Memory via Buffering Interfacial Polarization Fluctuation

 
 

Huabin Sun, Qijing Wang, Yun Li et al.

 
 

Ferroelectric organic field-effect transistors (Fe-OFETs) have been attractive for a variety of non-volatile memory device applications. One of the critical issues of Fe-OFETs is …

 
 
 
 
 
 

Fabrication of low cost soft tissue prostheses with the desktop 3D printer

 
 

Yong He, Guang-huai Xue, Jian-zhong Fu

 
 

Soft tissue prostheses such as artificial ear, eye and nose are widely used in the maxillofacial rehabilitation. In this report we demonstrate how to fabricate soft prostheses …

 
 
 
 
 
 

High-performance heterogeneous catalysis with surface-exposed stable metal nanoparticles

 
 

Ning Huang, Yanhong Xu, Donglin Jiang

 
 

Protection of metal nanoparticles from agglomeration is critical for their functions and applications. The conventional method for enhancing their stability is to cover them with …

 
 
 
 
 
 

The Effect of Nano Confinement on the C–H Activation and its Corresponding Structure-Activity Relationship

 
 

Jing Shao, Linghua Yuan, Xingbang Hu et al.

 
 

The C–H activation of methane, ethane, and t-butane on inner and outer surfaces of nitrogen-doped carbon nanotube (NCNTs) are investigated using density functional theory. It …

 
 
 
 
 
 

Evaluation of Hyperthermia of Magnetic Nanoparticles by Dehydrating DNA

 
 

Lina Yu, Jinming Liu, Kai Wu et al.

 
 

A method based on the thermodynamic equilibrium reached between the hybridization and denaturation of double-stranded DNA (ds-DNA) is opened up to evaluate the hyperthermia …

 
 
 
 
 
 

Reduction of friction stress of ethylene glycol by attached hydrogen ions

 
 

Jinjin Li, Chenhui Zhang, Mingming Deng et al.

 
 

In the present work, it is shown that the friction stress of ethylene glycol can decrease by an order of magnitude to achieve superlubricity if there are hydrogen ions attached …

 
 
 
 
 
 

Theoretical study on the role of dynamics on the unusual magnetic properties in MnBi

 
 

K. V. Shanavas, David Parker, David J. Singh

 
 

We study the electronic structure and lattice dynamics in the ferromagnet MnBi using first-principles calculations and a tight-binding model. The band structure around the Fermi …

 
 
 
 
 
 

Supercooled water escaping from metastability

 
 

Francesco Aliotta, Paolo V. Giaquinta, Rosina C. Ponterio et al.

 
 

The return of supercooled water to a stable equilibrium condition is an irreversible process which, in large enough samples, takes place adiabatically. We investigated this …

 
 
 
 
 
 

Inverse design and implementation of a wavelength demultiplexing grating coupler

 
 

Alexander Y. Piggott, Jesse Lu, Thomas M. Babinec et al.

 
 

Nanophotonics has emerged as a powerful tool for manipulating light on chips. Almost all of today's devices, however, have been designed using slow and ineffective brute-force …

 
 
 
 
 
 

Smart Liquid SERS Substrates based on Fe3O4/Au Nanoparticles with Reversibly Tunable Enhancement Factor for Practical Quantitative Detection

 
 

Fei Hu, Haiyang Lin, Zhaoshun Zhang et al.

 
 

There is a strong correlation between the surface enhanced Raman scattering (SERS) enhancement factor (EF), the excitation wavelength, and the feature properties (composition, …

 
 
 
 
 
 

Experimental visualization of the diffusion pathway of sodium ions in the Na3[Ti2P2O10F] anode for sodium-ion battery

 
 

Zhaohui Ma, Yuesheng Wang, Chunwen Sun et al.

 
 

Sodium-ion batteries have attracted considerable interest as an alternative to lithium-ion batteries for electric storage applications because of the low cost and natural …

 
 
 
 
 
 

Anthrapyrazolone analogues intercept inflammatory JNK signals to moderate endotoxin induced septic shock

 
 

Karothu Durga Prasad, Jamma Trinath, Ansuman Biswas et al.

 
 

Severe sepsis or septic shock is one of the rising causes for mortality worldwide representing nearly 10% of intensive care unit admissions. Susceptibility to sepsis is …

 
 
 
 
 
 

The role of different social contexts in shaping influenza transmission during the 2009 pandemic

 
 

Marco Ajelli, Piero Poletti, Alessia Melegaro et al.

 
 

Evaluating the relative importance of different social contexts in which infection transmission occurs is critical for identifying optimal intervention strategies. Nonetheless, …

 
 
 
 
 
 

Quantum metrology and estimation of Unruh effect

 
 

Jieci Wang, Zehua Tian, Jiliang Jing et al.

 
 

We study the quantum metrology for a pair of entangled Unruh-Dewitt detectors when one of them is accelerated and coupled to a massless scalar field. Comparing with previous …

 
 
 
 
 
 

Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer

 
 

Weipeng Xuan, Mei He, Nan Meng et al.

 
 

We report ZnO/glass surface acoustic wave (SAW) humidity sensors with high sensitivity and fast response using graphene oxide sensing layer. The frequency shift of the sensors is …

 
 
 
 
 
 

Interface-Induced Ordering of Gas Molecules Confined in a Small Space

 
 

Yi-Hsien Lu, Chih-Wen Yang, Chung-Kai Fang et al.

 
 

The thermodynamic properties of gases have been understood primarily through phase diagrams of bulk gases. However, observations of gases confined in a nanometer space have posed …

 
 
 
 
 
 

Flexible transparent graphene/polymer multilayers for efficient electromagnetic field absorption

 
 

K. Batrakov, P. Kuzhir, S. Maksimenko et al.

 
 

Thanks to its high electrical conductivity, a graphene plane presents a good shielding efficiency against GHz electromagnetic radiations. Several graphene planes separated by …

 
 
 
 
 
 

Efficient hybrid white organic light-emitting diodes with extremely long lifetime: the effect of n-type interlayer

 
 

Baiquan Liu, Lei Wang, Miao Xu et al.

 
 

The effect of n-type interlayer in hybrid white organic light-emitting diodes (WOLEDs) has been systematically investigated by using various n-type materials. A new finding, that …

 
 
 
 
 
 

Dynamic transition in supercritical iron

 
 

Yu. D. Fomin, V. N. Ryzhov, E. N. Tsiok et al.

 
 

Recent advance in understanding the supercritical state posits the existence of a new line above the critical point separating two physically distinct states of matter: rigid …

 
 
 
 
 
 

Photodiode-Like Behavior and Excellent Photoresponse of Vertical Si/Monolayer MoS2 Heterostructures

 
 

Yang Li, Cheng-Yan Xu, Jia-Ying Wang et al.

 
 

Monolayer transition metal dichalcogenides (TMDs) and their van der Waals heterostructures have been experimentally and theoretically demonstrated as potential candidates for …

 
 
 
 
 
 

Quantum error correction assisted by two-way noisy communication

 
 

Zhuo Wang, Sixia Yu, Heng Fan et al.

 
 

Pre-shared non-local entanglement dramatically simplifies and improves the performance of quantum error correction via entanglement-assisted quantum error-correcting codes …

 
 
 
 
 
 

Nanoclusters Synthesized by Synchrotron Radiolysis in Concert with Wet Chemistry

 
 

Hiroyuki Oyanagi, Yuuichi Orimoto, Kuniko Hayakawa et al.

 
 

Wet chemical reduction of metal ions, a common strategy for synthesizing metal nanoparticles, strongly depends on the electric potential of the metal, and its applications to …

 
 
 
 
 
 

Three-Dimensional Fe2O3 Nanocubes/Nitrogen-doped Graphene Aerogels: Nucleation Mechanism and Lithium Storage Properties

 
 

Ronghua Wang, Chaohe Xu, Jing Sun et al.

 
 

We developed a solvothermal-induced self-assembly approach to construct three dimensional (3D) macroscopic Fe2O3 nanocubes/nitrogen-doped graphene (Fe2O3-NC/GN) aerogel as anode …

 
 
 
 
 
 
 
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