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Under the application of electrical currents, metal nanocrystals inside carbon nanotubes can be bodily transported. We examine experimentally and theoretically how an iron nanocrystal can pass through a constriction in the carbon nanotube…

Mesoscale and Nanoscale Physics · Physics 2013-04-30 Sinisa Coh , Will Gannett , A. Zettl , Marvin L. Cohen , Steven G. Louie

The determination by powder neutron diffraction of the ambient temperature crystal structures of compounds in the NaxCoO2 family, for 0.3 < x <= 1.0, is reported. The structures consist of triangular CoO2 layers with Na ions distributed in…

Strongly Correlated Electrons · Physics 2009-11-10 Q. Huang , M. L. Foo , R. A. Pascal , J. W. Lynn , B. H. Toby , Tao He , H. W. Zandbergen , R. J. Cava

Transport property is investigated in [Ca$_{2}$CoO$_{3-\delta}$]$_{0.62}$[CoO$_{2}$] single crystals obtained by varying annealing conditions. The $\rho_{ab}(T)$ exhibits a resistivity minimum, and the temperature corresponding to this…

Strongly Correlated Electrons · Physics 2007-05-23 X. G. Luo , X. H. Chen , G. Y. Wang , C. H. Wang , Y. M. Xiong , H. B. Song , H. Li , X. X. Lu

In the osmotic power generation field, reaching the industrial benchmark has been challenging because of the need for capillaries close to the sizes of ions and molecules. Here, we fabricated well-controlled 'along-the-capillary' membranes…

Applied Physics · Physics 2023-12-19 Rathi Aparna , Dhal Biswabhusan , S S Sarath , Kalon Gopinadhan

Understanding the diffusion of oxygen vacancies in oxides under different external stimuli is crucial for the design of ion-based electronic devices, improve catalytic performance, etc. In this manuscript, using an external electric field…

Materials Science · Physics 2018-07-04 Lucía Iglesias , Andrés Gómez , Martí Gich , Francisco Rivadulla

The aim of the present work is to introduce a thermodynamic model to describe the growth of an oxide layer on a metallic substrate. More precisely, this paper offers a study of oxygen dissolution into a solid, and its consequences on the…

Chemical Physics · Physics 2009-09-15 Nicolas Creton , Virgil Optasanu , Tony Montesin , Sébastien Garruchet , Lionel Desgranges

Surface stresses, in nano-sized anode particles undergoing chemomechanical interactions, have a relaxing effect on the diffusion-induced stresses thus improving the mechanical endurance of the particles, whereas, the compressive effect of…

Soft Condensed Matter · Physics 2021-02-23 Amrita Sengupta , Jeevanjyoti Chakraborty

Ion transport through nanopores permeates through many areas of science and technology, from cell behavior to sensing and separation to catalysis and batteries. Two-dimensional materials, such as graphene, molybdenum disulfide (MoS$_2$),…

Mesoscale and Nanoscale Physics · Physics 2019-07-19 Subin Sahu , Michael Zwolak

As an important property of porous membranes, the surface charge property determines many ionic behaviors of nanopores, such as ionic conductance and selectivity. Based on the dependence of electric double layers on bulk concentrations,…

Chemical Physics · Physics 2024-02-08 Jiakun Zhuang , Long Ma , Yinghua Qiu

Numerical investigations are conducted to study the effect of factors such as particle clustering and interfacial layer thickness on thermal conductivity of nanofluids. Based on this, parameters including Kapitza radius, and fractal and…

Fluid Dynamics · Physics 2012-05-10 George Okeke , Sanjeeva Witharana , Joseph Antony , Yulong Ding

A Devanathan-Stachurski type diffusion cell made from a fuel cell assembly is designed to evaluate the gas transport properties of a proton exchange membrane as a function of cell temperature and gas pressure. Data obtained on this cell…

Materials Science · Physics 2011-08-12 Vijay A. Sethuraman , Saahir Khan , Jesse S. Jur , Andrew T. Haug , John W. Weidner

The impact of oxygen deficiency on physical properties of Na2/3CoO2-x has been investigated. From the combined thermogravimetric, magnetic susceptibility and synchrotron X-ray Laue diffraction studies, it is demonstrated that Na2/3CoO2…

Strongly Correlated Electrons · Physics 2015-05-19 G. J. Shu , W. L. Lee , F. -T. Huang , M. -W. Chu , Patrick A. Lee , F. C. Chou

The energy to desorb atomic oxygen from an interstellar dust grain surface, $E_{\rm des}$, is an important controlling parameter in gas-grain models; its value impacts the temperature range over which oxygen resides on a dust grain.…

Astrophysics of Galaxies · Physics 2015-06-23 Jiao He , Jianming Shi , Tyler Hopkins , Gianfranco Vidali , Michael J. Kaufman

Ionic Current Rectification (ICR) can appear in nanopores, causing a diode-like behavior that originates from different efficiency of ion transport through the pore channel with respect to the applied voltage bias polarity. This effect is…

Dense and mesoporous 4% mol Yttria-stabilized zirconia thin films were deposited on amorphous silica substrates. The effects of the temperature on the mesostructure were analyzed, by applying different thermal treatments to the samples…

Electrical conductance through InAs nanowires is relevant for electronic applications as well as for fundamental quantum experiments. Here we employ nominally undoped, slightly tapered InAs nanowires to study the diameter dependence of…

Mesoscale and Nanoscale Physics · Physics 2009-12-23 Marc Scheffler , Stevan Nadj-Perge , Leo P. Kouwenhoven , Magnus T. Borgström , Erik P. A. M. Bakkers

Hypothesis: Sample-spanning particle networks are used to induce structure and a yield stress, necessary for 3D printing of porous ceramics and paints. In capillary suspensions, a small quantity of immiscible secondary fluid is incorporated…

Soft Condensed Matter · Physics 2024-04-17 Lingyue Liu , Jens Allard , Erin Koos

Laser-driven ion acceleration from nanostructured targets offers a promising route to compact, high-energy ion sources. In this work, we demonstrate through particle-in-cell simulations that rectangular nanoring targets significantly…

Plasma Physics · Physics 2026-03-24 Xiaohui Gao

The effect of the deposition of kinetic energy and neutralization energy of slow highly charged xenon ions on the process of the nanostructures creation at the surface of gold nanolayers is investigated. The nanolayers of thickness of 100…

The issue of ice accumulation at low-temperature circumstances causes multiple problems and serious damages in many civil infrastructures which substantially influence human daily life. However, despite the significant consideration in…

Chemical Physics · Physics 2020-11-24 Amir Afshar , Dong Meng