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The ability to tailor nanoscale surface atom arrangements through multi-elemental compositional control provides high-entropy nanoalloys with promising functional properties. Developing a fundamental understanding of nanoalloy formation…

In recent years, vanadium oxides have gained immense attention in the field of energy storage devices due to their low-cost, layered structure and multi-valency despite their limited electrical conductivity and lower structural stability.…

Applied Physics · Physics 2020-09-28 Raktima Basu , Sandip Dhara

The last two decades, in particular, have witnessed a large volume of research revolving around structure-property correlation in Carbon based nanocomposites, synthesized by several methods.In the simplest of terms, the electronic…

Materials Science · Physics 2021-10-07 Manab Mallik , Mainak Saha

Most recent exciting experimental advances introduced buckled and flat borophene nanomembranes as new members to the advancing family of two-dimensional (2D) materials. Borophene, is the boron atom analogue of graphene with interesting…

Computational Physics · Physics 2017-05-10 Bohayra Mortazavi , Obaidur Rahaman , Said Ahzi , Timon Rabczuk

Suspended single-walled carbon nanotube devices comprised of high quality electrical contacts and two electrostatic gates per device are obtained. Compared to nanotubes pinned on substrates, the suspended devices exhibit little hysteresis…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Jien Cao , Qian Wang , Dunwei Wang , Hongjie Dai

Coatings comprised of carbon nanotubes are very black; that is, characterized by low reflectance over a broad wavelength range from the visible to far infrared. Arguably there is no other material that is comparable. This is attributable to…

Applied Physics · Physics 2017-10-04 J. Lehman , C. Yung , N. Tomlin , D. Conklin , M. Stephens

We systematically evaluate the prospects of a novel 2D nanomaterial, phosphorene, as anode for Na-ion batteries. Using first-principles calculations, we determine the Na adsorption energy, specific capacity and Na diffusion barriers on…

Materials Science · Physics 2015-06-24 Vadym V. Kulish , Oleksandr I. Malyi , Clas Persson , Ping Wu

A single-walled carbon nanotube presents a seamless cylindrical graphene surface and is thus an ideal adsorption substrate for investigating the physics of atoms and molecules in two dimensions and approaching the one-dimensional limit.…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Boris Dzyubenko , Hao-Chun Lee , Oscar E. Vilches , David H. Cobden

Modeling nanoscale capacitance presents particular challenge because of dynamic contribution from electrodes, which can usually be neglected in modeling macroscopic capacitance and nanoscale conductance. We present a model to calculate…

Materials Science · Physics 2013-10-03 Jun-Qiang Lu , Jonathan Gonzalez , Carlos Sierra , Yang Li

We propose a device which implements a solid-state nanostructured electron entangler. It consists of a single-walled carbon nanotube connected at both end to normal state electrodes and coupled in its middle part to a superconducting…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 V. Bouchiat , N. Chtchelkatchev , D. Feinberg , G. B. Lesovik , T. Martin , J. Torres

We have investigated the lithium capacity of the 2H phase of niobium sulphide (NbS2) using density functional theory calculations and experiments. Theoretically, this material is found to allow the intercalation of a double layer of Li in…

Nanoscrolls consist of sheets rolled up into a papyrus-like form. Their open ends produce great radial flexibility, which can be exploited for a large variety of applications, from actuators to hydrogen storage. They have been successfully…

Mesoscale and Nanoscale Physics · Physics 2015-06-02 Eric Perim , Douglas S. Galvao

We report in-situ synthesis of iron oxide particles inside silicon nitride nanopores via a chemical reaction, monitored by current readout. Nanopores were formed by electroporation on glass chips (diameters from 1.7 to 11.3 nm),…

Thin films of iron and permalloy Ni80Fe20 were prepared using an Ar+N2 mixture with magnetron sputtering technique at ambient temperature. The nitrogen partial pressure, during sputtering process was varied in the range of 0 to 100%,…

Materials Science · Physics 2007-05-23 Rachana Gupta , Mukul Gupta

Emergence of $\pi$-magnetism in open-shell nanographenes has been theoretically predicted decades ago but their experimental characterization was elusive due to the strong chemical reactivity that makes their synthesis and stabilization…

Mesoscale and Nanoscale Physics · Physics 2022-09-07 Dimas G. de Oteyza , Thomas Frederiksen

We demonstrate theoretically that an array of carbon nanoscrolls acts as a hyperbolic magnetic metamaterial in the THz regime with genuine subwavelength operation corresponding to wavelength-to-structure ratio of about 200. Due to the low…

Mesoscale and Nanoscale Physics · Physics 2013-10-30 Vassilios Yannopapas , Marilena Tzavala , Leonidas Tsetseris

Rational design and cost-effective fabrication of layered double hydroxides (LDHs) nanosheets with extraordinary electrochemical performance is a key challenge for hybrid supercapacitors (HSCs). Herein, we report a facile in situ growth…

Applied Physics · Physics 2024-03-26 Yuchen Wang , Yaoyu Liu , Zuo Chen , Man Zhang , Biying Liu , Zhenhao Xu , Kai Yan

The development of superconducting electronics based on nanocryotrons has been limited so far to few-device circuits, in part due to the lack of standard and robust logic cells. Here, we introduce and experimentally demonstrate designs for…

Direct laser acceleration of electrons in near-critical-density (NCD) carbon nanotube foams (CNFs) has its advantages in the high-efficiency generation of relativistic electrons and broadband X-rays. Here, we report the first simultaneous…

The existence of a new two dimensional CN2 structure was predicted using ab-initio molecular dynamics (AIMD) and density-functional theory calculations. It consists tetragonal and hexagonal rings with C-N and N-N bonds arranged in a…

Materials Science · Physics 2021-01-29 Qun Wei , Ying Yang , Alexander Gavrilov , Xihong Peng
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