first-order transition

first-order transition

[¦fərst ‚ȯrd·ər trans′zish·ən]
(thermodynamics)
A change in state of aggregation of a system accompanied by a discontinuous change in enthalpy, entropy, and volume at a single temperature and pressure.
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References in periodicals archive ?
A portion of the second-order transition line is masked by a first-order transition line.
Acoustic Signatures of the Phases and Phase Transitions in the Blume Capel Model with Random Crystal Field
The first-order transition matrix is denoted as Trans1(t - 1, t).
Recurrent Transformation of Prior Knowledge Based Model for Human Motion Recognition
For more details, the dashed line stands for crossover transition and the solid one the first-order transition. CEPs are shown as star points.
Chiral Phase Transition in Linear Sigma Model with Nonextensive Statistical Mechanics
The topics include a critical assessment of the random first-order transition theory of glasses, the dielectric spectroscopy of glassy dynamics, glassiness in uniformly frustrated systems, dynamics in the crossover region of supercooled liquids, and glassy dynamics of proteins.
Structural glasses and supercooled liquids; theory, experiment, and applications
In a first-order transition, such as the freezing of water when chilled, the jump from one state to the other is discontinuous.
Changes of Mathematical State
The blends showed a single glass transition and no sign of a first-order transition associated with the solid crystal-nematic phase transition of the LCP.
Thermal and mechanical properties of injection molded liquid crystalline polymer/amorphous polymer blends
The first-order transition seen in the M(T) curves for x = 0.02 was further confirmed by the observed endothermic and exothermic peaks in the DSC data (see Figure 4).
Phase Transitions and Magnetocaloric Properties in Mn[Co.sub.1-x] [Zr.sub.x]Ge Compounds
In fact, this behavior will break for there is a first-order transition, which is similar to the Hawking-Page thermodynamic transition in [49].
Van der Waals-Like Phase Transition from Holographic Entanglement Entropy in Lorentz Breaking Massive Gravity
This is an important result for assessing future technological applications, since there is a definite limit, by virtue of being a first-order transition, to which the materials properties can be tailored to achieve the highest critical currents.
SUPERCOOLING AND SUPERHEATING OF VORTEX MATTER
In [8], it was shown that with the increase of [rho] the first-order transition of the chiral and diquark gaps becomes crossover through a second-order phase transition.
Effect of Strong Magnetic Field on Competing Order Parameters in Two-Flavor Dense Quark Matter
For instance, the various liquid-gas transitions are classified as first-order transitions because they involve a discontinuous change in density, which is the (inverse of the) first derivative of f with respect to pressure.
Phase Transitions and Zeros of the Partition Function: An introduction
The space groups of the ordered [Ca.sub.4][Nb.sub.2][O.sub.9] polymorphs (deduced from electron diffraction data) do not exhibit group/subgroup relations, and, therefore, phase transitions between them must be first-order transitions.
Electron diffraction using transmission electron microscopy

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