Synchronization and phase transition in the Frenkel–Kontorova-type model system

2012 ◽  
Vol 86 (6) ◽  
pp. 065602 ◽  
Author(s):  
Jian-Rong Zhang ◽  
Hong Jiang ◽  
Yang Yang ◽  
Wen-Shan Duan ◽  
Jian-Min Chen
Keyword(s):  
Phase Transition ◽  
Model System ◽  
Type Model

Reversible microscale assembly of nanoparticles driven by the phase transition of a thermotropic liquid crystal

2017 ◽  
Author(s):  
Niamh Mac Fhionnlaoich ◽  
Stephen Schrettl ◽  
Nicholas B. Tito ◽  
Ye Yang ◽  
Malavika Nair ◽  
...  
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Self Assembly ◽  
Nematic Phase ◽  
Hierarchical Control ◽  
Building Blocks ◽  
Model System ◽  
Microscopic Level ◽  
Reversible Process ◽  
Thermotropic Liquid Crystal

The arrangement of nanoscale building blocks into patterns with microscale periodicity is challenging to achieve via self-assembly processes. Here, we report on the phase transition-driven collective assembly of gold nanoparticles in a thermotropic liquid crystal. A temperature-induced transition from the isotropic to the nematic phase leads to the assembly of individual nanometre-sized particles into arrays of micrometre-sized aggregates, whose size and characteristic spacing can be tuned by varying the cooling rate. This fully reversible process offers hierarchical control over structural order on the molecular, nanoscopic, and microscopic level and is an interesting model system for the programmable patterning of nanocomposites with access to micrometre-sized periodicities.

scholarly journals Overview of Low-Temperature Heat Capacity Data for Zn2(C8H4O4)2.C6H12N2 and the Salam Hypothesis

Symmetry ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 657
Author(s):  
Svetlana Kozlova ◽  
Maxim Ryzhikov ◽  
Denis Pishchur ◽  
Irina Mirzaeva
Keyword(s):  
Phase Transition ◽  
Heat Capacity ◽  
Phase Transitions ◽  
Low Temperature ◽  
Metal Organic Framework ◽  
Model System ◽  
Temperature Heat ◽  
Metal Organic ◽  
Low Temperature Heat Capacity ◽  
Capacity Data

The review presents the progress in the analysis of low-temperature heat capacity of the metal-organic framework Zn2(C8H4O4)2.C6H12N2 (Zn-DMOF). In Zn-DMOF, left-twisted D3(S) and right-twisted D3(R) DABCO molecules (C6H12N2) can transform into each other by tunneling to form a racemate. Termination of tunneling leads to a phase transition in the subsystem of twisted molecules. It is suggested that Zn-DMOF may be considered a model system to study the mechanisms of phase transitions belonging to the same type as hypothetical Salam phase transitions.

scholarly journals WINNING STRATEGIES IN CONGESTED TRAFFIC

2012 ◽  
Vol 23 (09) ◽  
pp. 1250063 ◽  
Author(s):  
FERENC JÁRAI-SZABÓ ◽  
ZOLTÁN NÉDA
Keyword(s):  
Phase Transition ◽  
The Other ◽  
Type Model ◽  
Block Type ◽  
Lane Changing ◽  
Average Gain ◽  
Winning Probability ◽  
Congested Traffic ◽  
Winning Strategies

One-directional traffic on two-lanes is modeled in the framework of a spring-block type model. A fraction q of the cars are allowed to change lanes, following simple dynamical rules, while the other cars keep their initial lane. The advance of cars, starting from equivalent positions and following the two driving strategies is studied and compared. As a function of the parameter q the winning probability and the average gain in the advancement for the lane-changing strategy is computed. An interesting phase-transition like behavior is revealed and conclusions are drawn regarding the conditions when the lane changing strategy is the better option for the drivers.

Nonclassical Correlation between Light Beams in a Jaynes-Cummings-Type Model System

1988 ◽  
Vol 5 (4) ◽  
pp. 381-381
Author(s):  
N. N Bogolubov ◽  
Fam Le Kien ◽  
A. S Shumovsky
Keyword(s):  
Model System ◽  
Type Model ◽  
Light Beams
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