In subject area:Chemistry The dielectric constant, also known as the relative permittivity, is a dimensionless constant that describes how a material behaves in an electric field compared to vacuum. It reflects the material's response to an electric field and is related to its polarity. ...
The dielectric constant of LiInSe2 and its temperature dependence were determined from capacitance measurements. The dielectric constant is 9.4 at room temperature. The value is discussed with the relationship of ε(0)=1+(\hbarωp/Eg)2. The dielectric constant varies linearly with temperature in ...
MM Ali Talpur,A Kaim - 《Journal of Macromolecular Science Part A Pure & Applied Chemistry》 被引量: 32发表: 1994年 Microwave Absorption and Molecular Structure in Liquids. LIII. Hydrogen Bonding and Dielectric Properties in Chloroform Mixtures Dielectric constant and loss measurements are reported ...
In this paper the authors report measurements of the dielectric constant of 1,1,1,2-tetrafluoroethane, HFC-134a, an environmentally acceptable refrigerant, under consideration as an alternative replacement of the chlorofluorocarbons, CFCs. The dipole moment in the gaseous phase was found to be (1.91...
The arbitrariness of the notion of the "effective", or "local", dielectric constant used in attempts to describe the heterogeneous system biopolymer/water by equations valid only for a homogeneous dielectric has been discussed. It has been shown that in solving different problems in which the atom...
This work affords an atomic insight into the dielectric constant variation and its chemical origin, which can deepen the fundamental understanding in solution chemistry. 展开 关键词: dielectric constant liquid electrolytes temperature solvent mixtures Molecular dynamics simulations ...
This instrument has a sensitivity of 1 part in 10 8 of dielectric constant and a response time of 10 4 sec.; the frequency of operation is 50 Mc./s. We are indebted for the design of the instrument to Dr. C. M. Burrell, of the Radar Research and Development Establishment and to ...
1. Introduction The search for high dielectric constant (high-k) gate dielectric materials for ?eld-effect transistor-enabled (FET) applications has stimulated important research activities in both conventional and unconventional electronics. Although it is not the focus of this Review Article, high-k...
organic chemistry, reviewgeneral electrochemistryChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. ...
Low dielectric constant films have been developed by a new silsesquioxane based chemistry with k values approaching 1.5. A process has been developed which allows the control of the electrical and mechanical properties of the films. In addition, thick, crack-free films can be prepared which are ...