Since its discovery in 2004, the material -- a single layer of carbon atoms -- has been touted for its host of unique properties, which include ultra-high electrical conductivity and remarkable tensile strength. FromScience Daily However, MOFs typically exhibit low thermal conductivity, making them...
Learn about the electrical conductivity property of metals. Understand the meaning of electrical conductivity with examples, formulas, and...
Interestingly, the transition is continuous meaning that quantum critical fluctuations proliferate to large scales, and can thus amplify signatures of fractionalization. Using large-scale quantum Monte Carlo (QMC) simulations we search for such signatures using a key observable, the conductivity. This is...
If the phonon linewidth is close to the Breit-Wigner resonance value (determined by the separation between phonon branches), phonon states can be viewed as “driven” by the scattering, meaning that the quantum coherence between the phonon states can be preserved. Otherwise, κC is small, ...
Conductivity measurements indicated that the compound is an intrinsic semiconductor and obeys the Arrhenius conductivity equation; σ=492.7 exp(−1.15 eV/kT)Ω-1 m-1, above 625 K where K and T have their usual meaning. This is a preview of subscription content, log in via an institution ...
The impact of an increase in temperature on the resistivity and conductivity is determined by the size of the temperature coefficient, with higher values meaning more of a change with temperature and lower values meaning less of a change.
The geometric meaning of the strain-induced complex gauge field is clarified. The optical conductivity is also investigated, and a frequency dependent optical conductivity is obtained. The actual value of interband optical conductivity along the deformed direction isC0+C1蠅2in spite of the particular...
The resulting protocol gets around the need for mock crystalline models for the glass, which introduce spurious modes whose group velocities bear little physical meaning. This fact is exemplified by the extreme case of a 2 × 2 × 2q-mesh, where group velocities vanish identically as ...
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The activation energy for Technora is about 20% higher than that for Kevlar, meaning that it is less sensitive to the effects of increasing temperature... IP Giannopoulos,CJ Burgoyne - 《Journal of Applied Polymer Science》 被引量: 21发表: 2012年 Hydrolytic and photochemical aging studies of ...