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We report the exfoliation of layered Na2Ti3O7, a promising anode material for Na-ion batteries, and restacking using HNO3 and NaOH to form H-Ti3O7 and Na(x)-Ti3O7 compositions, respectively. The materials were characterised by a range of…

Oxide heterostructures represent a unique playground for triggering the emergence of novel electronic states and for implementing new device concepts. The discovery of 2D conductivity at the $LaAlO_3/SrTiO_3$ interface has been linking for…

Highly ordered and self supported anatase TiO2 nanoparticle chains were fabricated by calcining conformally TiO2 coated multi-walled carbon nanotubes (MWCNTs). During annealing, the thin tubular TiO2 coating that was deposited onto the…

In this work, ZnO nanowire arrays decorated with titanium nitride (TiN) nanoparticles as surface enhanced Raman scattering (SERS) substrates is demonstrated. ZnO nanowires were grown by hydrothermal synthesis while ~100 nm TiN nanoparticles…

Materials Science · Physics 2021-04-07 Y. Rajesh , M. S. S. Bharati , S. Venugopal Rao , M. Ghanashyam Krishna

The electronic properties of TiO$_2$ nanostructure are explored using density functional theory. The adsorption properties of acetone on TiO$_2$ nanostructure are studied in terms of adsorption energy, average energy gap variation and…

Mesoscale and Nanoscale Physics · Physics 2017-12-15 V. Nagarajan , S. Sriram , R. Chandiramouli

Nanotruss structures made of carbon nanotubes are investigated in two conceptual applications: either as building blocks of metamaterials or for nanostructural applications. The nanotrusses are optimized for different purposes, including…

Materials Science · Physics 2024-07-31 Marko Čanađija , Stefan Ivić

High-entropy alloys (HEAs) combine compositional disorder with exceptional functional tunability, yet their inherently high-density limits use in lightweight systems. Here, we introduce entropy-architected nanowire metamaterials, a class of…

Rational design of novel two-dimensional (2D) electrode materials with high capacity is crucial for the further development of Li-ion and Na-ion batteries. Herein, based on first-principles calculations, we systemically investigate Li and…

Materials Science · Physics 2019-11-22 Junping Hu , Chengyong Zhong , Weikang Wu , Ning Liu , Yu Liu , Shengyuan A. Yang , Chuying Ouyang

The advent of nanotechnology has hurtled the discovery and development of nanostructured materials with stellar chemical and physical functionalities in a bid to address issues in energy, environment, telecommunications and healthcare. In…

An atomistic effective Hamiltonian technique is used to investigate the finite-temperature energy storage properties of a ferroelectric nanocomposite consisting of an array of BaTiO$_{3}$ nanowires embedded in a SrTiO$_{3}$ matrix, for…

In recent years, it has been pointed out that the maximum accelerating gradient of a superconducting RF cavity can be increased by coating the inner surface of the cavity with a multilayer thin-film structure consisting of alternating…

Accelerator Physics · Physics 2019-07-09 R. Katayama , H. Hayano , T. Kubo , T. Saeki , Hayato Ito , Y. Iwashita , H. Tongu , C. Z. Antoine , R. Ito , T. Nagata

The new paradigm of heterostructures based on two-dimensional (2D) atomic crystals has already led to the observation of exciting physical phenomena and creation of novel devices. The possibility of combining layers of different 2D…

We demonstrate a high electron conductivity (> 10^2 S/cm and up to 10^3 S/cm) of tungsten suboxide W18O(52.4-52.9)(or equivalently WO(2.91-2.94)) nanotubes (2 to 3 nm in diameter, ca. micrometer long). The conductivity is measured in the…

Crystal structure and physical properties of the novel BiS2-based layered superconductors are briefly reviewed. Superconductivity in the BiS2-based layered compounds is induced by electron doping into the BiS2 conduction layers. The…

Superconductivity · Physics 2015-04-06 Yoshikazu Mizuguchi

Cu-Sn-Zn coatings have been widely used in industry for their unique properties, such as good conductivity, high corrosion resistance and excellent solderability. To further improve the mechanical performance of Cu-Sn-Zn coatings,…

Applied Physics · Physics 2017-12-05 Weidong Gao , Di Cao , Yunxue Jin , Xiaowei Zhou , Guang Cheng , Yuxin Wang

Three-dimensional hierarchical ZnO films with lotus-leaf-like micro/nano structures were successfully fabricated via a biomimetic route combining sol-gel technique, soft lithography and hydrothermal treatments. PDMS mold replicated from a…

Materials Science · Physics 2013-03-14 Shuxi Dai , Dianbo Zhang , Qing Shi , Xiao Han , Shujie Wang , Zuliang Du

The discovery of superconductivity in thin films ($\sim$10 nm) of infinite-layer hole-doped NdNiO$_2$ has invigorated the field of high-temperature superconductivity research, reviving the debate over contrasting views that nickelates that…

Superconductivity · Physics 2022-02-15 Antia S. Botana , Kwan-Woo Lee , Michael R. Norman , Victor Pardo , Warren E. Pickett

Neutron scattering has been used to investigate the crystal structure and lattice dynamics of superconducting Na0.3CoO2 1.4(H/D)2O, and the parent Na0.3CoO2 material. The structure of Na0.3CoO2 consists of alternate layers of CoO2 and Na…

Superconductivity · Physics 2009-11-10 J. W. Lynn , Q. Huang , C. M. Brown , V. L. Miller , M. L. Foo , R. E. Schaak , C. Y. Jones , E. A. Mackey , R. J. Cava

Within the field of nanotechnology, nano-scale composites have significant potential in the development of advanced materials for functional applications. Here, composites based on carbon nanotubes and titanium dioxides have been prepared…

Materials Science · Physics 2016-10-11 Rongkai Li , Dongping Chen , Xinling Hu , Yanzhen Huang , Jing Lu , Dongxu Li

NiO/ZnO-based thin films, including single-layer and heterostructure configurations, were synthesized to investigate the influence of stacking order on their electrochemical performance for supercapacitor applications. To improve the…