Results 21 to 30 of about 848,796 (301)

Dielectric Relaxation Behavior of BTO/LSMO Heterojunction

open access: yesNanomaterials, 2021
The BaTiO3 (BTO)/La0.7Sr0.3MnO3 (LSMO) magnetoelectric composite films were prepared by sol-gel method on STO (001) substrates. The heterojunction has highly preferred orientation and exhibits well ferroelectric properties with perfect hysteresis loops ...
Guoqiang Song   +5 more
doaj   +1 more source

Understanding ferroelectricity in layered perovskites : new ideas and insights from theory and experiments [PDF]

open access: yes, 2015
N. A. B. was supported by The Welch Foundation under Grant. No. F-1803. J. M. R. acknowledges support from the Penn State Center for Nanoscience, National Science Foundation grant no. DMR-1420620. Ph.G.
Benedek, Nicole   +4 more
core   +1 more source

Static polarizability of molecular materials: environmental and vibrational contributions

open access: yes, 2003
Modeling the dielectric behavior of molecular materials made up of large pi-conjugated molecules is an interesting and complex task. Here we address linear polarizabilities, and the related dielectric constant, of molecular crystals and aggregates made ...
Painelli, Anna   +2 more
core   +1 more source

Evaluation of Health Indicators and the Quality of Used Frying Oils in Fast Food Restaurants of Mashhad in 2018

open access: yesJournal of Environmental Health and Sustainable Development, 2020
Introduction: Recently, changes in people's lifestyles and new eating habits have diminished the importance of main dishes and have led to increasing the consumption of fast foods.
Zohreh Rahnama Bargard   +5 more
doaj  

Shielding electrostatic fields in polar semiconductor nanostructures

open access: yes, 2016
Modern opto-electronic devices are based on semiconductor heterostructures employing the process of electron-hole pair annihilation. In particular polar materials enable a variety of classic and even quantum light sources, whose on-going optimisation ...
Callsen, G.   +3 more
core   +1 more source

An automatically curated first-principles database of ferroelectrics. [PDF]

open access: yes, 2020
Ferroelectric materials have technological applications in information storage and electronic devices. The ferroelectric polar phase can be controlled with external fields, chemical substitution and size-effects in bulk and ultrathin film form, providing
Jain, Anubhav   +4 more
core   +2 more sources

Evolution of cation ordering and crystal defects controlled by Zn substitutions in Cu2SnS3 ceramics

open access: yesAIP Advances, 2018
The microstructures of a series of Cu2ZnxSn1-xS3 (x = 0, 0.05, 0.10, 0.15,0.20) ceramic samples are investigated by a combination of selected area electron diffraction (SAED), high-resolution transmission electron microscopy (HRTEM), high-angle annular ...
Chao Li   +8 more
doaj   +1 more source

Enhancement and tunability of near-field radiative heat transfer mediated by surface plasmon polaritons in thin plasmonic films [PDF]

open access: yes, 2015
The properties of thermal radiation exchange between hot and cold objects can be strongly modified if they interact in the near field where electromagnetic coupling occurs across gaps narrower than the dominant wavelength of thermal radiation.
Boriskina, Svetlana V.   +5 more
core   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Microstructure of Cu2S nanoprecipitates and its effect on electrical and thermal properties in thermoelectric Cu2Zn0.2Sn0.8S3 ceramics

open access: yesAIP Advances, 2018
The microstructures of Cu2Zn0.2Sn0.8S3 ceramics with high electrical conductivity and low thermal conductivity were investigated by a combination of selected area electron diffraction, high-resolution transmission electron microscopy, X-ray energy ...
Chao Li   +8 more
doaj   +1 more source

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