Results 321 to 330 of about 11,033,430 (362)

Critical Point of Fluid Confined in Nanopores: Experimental Detection and Measurement

Journal of Physical Chemistry C, 2019
For the first time, the presence of the critical point (CP) of fluids confined in nanopores is unambiguously demonstrated and measured using a differential scanning calorimeter with an isochoric cooling procedure.
Sugata P. Tan, Xingdong Qiu, M. Dejam, H. Adidharma   +3 more
semanticscholar   +1 more source

Why Bond Critical Points Are Not “Bond” Critical Points

Chemistry – A European Journal, 2018
AbstractEquating (3,−1) critical points (CPs), derived from the topological analysis of the electron densities, to chemical bonds has triggered a lot of confusion in recent years. Part of this confusion stems from calling these CPs “bond” CPs (BCPs). While the origin of this terminology is traceable to the late seventies and beginning of eighties, when
openaire   +3 more sources

Critical-point dewetting

Physical Review B, 1987
Already within Landau theory with short-ranged substrate-adsorbate forces, complete wetting is not necessary near critical points. Preferential adsorption, but only partial wetting all the way to the critical point, and even critical-point dewetting are possible.
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The φ4 Critical Point

1981
To fix the notation, we consider the interaction $$V\left( \phi \right) = \lambda \phi ^4 + \sigma \phi ^2 - \mu \phi $$ (17.1.1) with λ, σ, and μ real and 0 0.)
James Glimm, Arthur Jaffe
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A Critical Point for Random Graphs with a Given Degree Sequence

Random Struct. Algorithms, 1995
Given a sequence of nonnegative real numbers λ0, λ1… which sum to 1, we consider random graphs having approximately λi n vertices of degree i. Essentially, we show that if Σ i(i - 2)λi > 0, then such graphs almost surely have a giant component, while if ...
Michael Molloy, B. Reed
semanticscholar   +1 more source

Change of carrier density at the pseudogap critical point of a cuprate superconductor

Nature, 2015
The pseudogap is a partial gap in the electronic density of states that opens in the normal (non-superconducting) state of cuprate superconductors and whose origin is a long-standing puzzle.
S. Badoux, W. Tabiś, W. Tabiś, F. Laliberté, G. Grissonnanche, B. Vignolle, D. Vignolles, J. Béard, D. Bonn, D. Bonn, W. Hardy, W. Hardy, R. Liang, R. Liang, N. Doiron-Leyraud, L. Taillefer, L. Taillefer, C. Proust, C. Proust   +18 more
semanticscholar   +1 more source

Pointing to a second critical point

Science, 2017
Water Thermodynamics One explanation for the divergence of many of the thermodynamic properties of water is that there is a critical point in deeply supercooled water at some positive pressure. For bulk water samples, these conditions are described as “no man's land,” because ice nucleates before such temperatures can be reached. Kim et al.
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Absence of critical point wetting near the – tri-critical point

Physica B: Condensed Matter, 2003
Abstract We have measured the contact angle of the 3 He – 4 He interface on a sapphire window near the tri-critical temperature T t =0.87 K . We have found that it is finite and that it increases with temperature above 0.81 K .
T. Ueno, Sébastien Balibar, M. Fechner, Takao Mizusaki, Frédéric Caupin, Etienne Rolley   +5 more
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Critical Points of Functionals

2004
In the last section of the preceding chapter, we have already seen examples of how solutions to certain nonlinear equations could be obtained as critical points of appropriate functionals.
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Thermodynamics of critical points

Physics Today, 1968
NEW EXPERIMENTAL TECHNIQUES have been joined by novel theoretical approaches to give great impetus to the study of phase transitions. The systems studied include vapors near their critical points, ferromagnets near their Curie temperatures, antiferromagnets near their Néel points and the superfluid transitions.
openaire   +3 more sources