THE INFLUENCE OF SURFACE EFFECTS ON THE PYROELECTRIC BEHAVIOUR OF T. G. S. CLOSE TO THE PHASE TRANSITION

1972 ◽  
Vol 33 (C2) ◽  
pp. C2-233-C2-234
Author(s):  
Z. MÁLEK ◽  
J. JANTA ◽  
G. CHANUSSOT
Keyword(s):  
Phase Transition ◽  
Surface Effects ◽  
Pyroelectric Behaviour

Phase transition characteristics in the conductivity of VO2(A) nanowires: size and surface effects

2016 ◽  
Vol 18 (15) ◽  
pp. 10262-10269 ◽  
Author(s):  
C. Q. Wang ◽  
Jian Shao ◽  
X. L. Liu ◽  
Yun Chen ◽  
W. M. Xiong ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
Surface Effects

The phase transition temperature of VO2(A) nanowires is found to be linearly dependent on the inverse of the nanowire widths.

scholarly journals Correction: Phase transition characteristics in the conductivity of VO2(A) nanowires: size and surface effects

2016 ◽  
Vol 18 (18) ◽  
pp. 13128-13129 ◽  
Author(s):  
C. Q. Wang ◽  
Jian Shao ◽  
X. L. Liu ◽  
Yun Chen ◽  
W. M. Xiong ◽  
...  
Keyword(s):  
Phase Transition ◽  
Surface Effects ◽  
Chem Phys ◽  
Phys Chem Chem Phys ◽  
Correction Phase

Correction for ‘Phase transition characteristics in the conductivity of VO2(A) nanowires: size and surface effects’ by C. Q. Wang et al., Phys. Chem. Chem. Phys., 2016, 18, 10262–10269.

scholarly journals A First Order Phase Transition Studied by an Ising-Like Model Solved by Entropic Sampling Monte Carlo Method

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 587
Author(s):  
Jorge Linares ◽  
Catherine Cazelles ◽  
Pierre-Richard Dahoo ◽  
Kamel Boukheddaden
Keyword(s):  
Phase Transition ◽  
Monte Carlo ◽  
Order Phase Transition ◽  
Thermal Hysteresis ◽  
Surface Effects ◽  
Gradual Transition ◽  
First Order ◽  
First Order Phase Transition ◽  
Entropic Sampling ◽  
First Order Phase

Two-dimensional (2D) square, rectangular and hexagonal lattices and 3D parallelepipedic lattices of spin crossover (SCO) compounds which represent typical examples of first order phase transitions compounds are studied in terms of their size, shape and model through an Ising-like Hamiltonian in which the fictitious spin states are coupled via the respective short and long-range interaction parameters J, and G. Furthermore, an environmental L parameter accounting for surface effects is also introduced. The wealth of SCO transition properties between its bi-stable low spin (LS) and high spin (HS) states are simulated using Monte Carlo Entropic Sampling (MCES) method which favors the scanning of macro states of weak probability occurrences. For given J and G, the focus is on surface effects through parameter L. It is shown that the combined first-order phase transition effects of the parameters of the Hamiltonian can be highlighted through two typical temperatures, TO.D., the critical order-disorder temperature and Teq the equilibrium temperature that is fixed at zero effective ligand field. The relative positions of TO.D. and Teq control the nature of the transition and mediate the width and position of the thermal hysteresis curves with size and shape. When surface effects are negligible (L = 0), the equilibrium transition temperature, Teq. becomes constant, while the thermal hysteresis’ width increases with size. When surface effects are considered, L ≠ 0, Teq. increases with size and the first order transition vanishes in favor of a gradual transition until reaching a threshold size, below which a reentrance phenomenon occurs and the thermal hysteresis reappears again, as shown for hexagonal configuration.

Near-surface effects at the antiferromagnetic phase transition in uranium phosphide

1997 ◽  
Vol 55 (1) ◽  
pp. 423-438 ◽  
Author(s):  
A. Stunault ◽  
S. Langridge ◽  
C. Vettier ◽  
D. Gibbs ◽  
N. Bernhoeft
Keyword(s):  
Phase Transition ◽  
Surface Effects ◽  
Antiferromagnetic Phase ◽  
Near Surface
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