Locally converging algorithms for determining the critical temperature in Ising systems

2008 ◽  
Vol 78 (13) ◽  
Author(s):  
Eshel Faraggi ◽  
Daniel T. Robb
Keyword(s):  
Critical Temperature ◽  
Ising Systems

Corrections to the critical temperature in 2D Ising systems with Kac potentials

1995 ◽  
Vol 78 (3-4) ◽  
pp. 1131-1138 ◽  
Author(s):  
M. Cassandro ◽  
R. Marra ◽  
E. Presutti
Keyword(s):  
Critical Temperature ◽  
Kac Potentials ◽  
Ising Systems

THERMALLY DILUTED ISING SYSTEMS

Fractals ◽  
2003 ◽  
Vol 11 (supp01) ◽  
pp. 53-65
Author(s):  
MANUEL I. MARQUÉS ◽  
JULIO A. GONZALO ◽  
JORGE ÍÑIGUEZ
Keyword(s):  
Critical Temperature ◽  
Ising Model ◽  
Disordered Systems ◽  
Short Range ◽  
Finite Size ◽  
Universality Class ◽  
Finite Size Scaling ◽  
Local Distribution ◽  
Ising Systems ◽  
Theoretical Predictions

In this paper finite size scaling techniques are used to study the universality class of thermally diluted Ising systems, in which the realization of the disposition of magnetic atoms and vacancies is taken from the local distribution of spins in the pure original Ising model at criticality. The critical temperature, the critical exponents and therefore the universality class of these thermally diluted Ising systems depart markedly from the ones of short range correlated disordered systems. This result is in agreement with theoretical predictions previously made by Weinrib and Halperin for systems with long range correlated disorder.

TRANSFER TENSOR VARIATION METHOD APPLIED TO RANDOM ISING SYSTEMS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1251-C8-1252
Author(s):  
W. Brauneck ◽  
O. Jagodzinski ◽  
D. Wagner
Keyword(s):  
Variation Method ◽  
Ising Systems

Optical properties of the Vanadium dioxide

2015 ◽  
Vol 8 (2) ◽  
pp. 2148-2155 ◽  
Author(s):  
Abderrahim Benchaib ◽  
Abdesselam Mdaa ◽  
Izeddine Zorkani ◽  
Anouar Jorio
Keyword(s):  
Energy Efficiency ◽  
Optical Properties ◽  
Critical Temperature ◽  
Thin Layer ◽  
Dielectric Function ◽  
Vanadium Dioxide ◽  
Ultra Violet ◽  
Index Of Refraction ◽  
Practical Utility ◽  
Infra Red

The vanadium dioxide is a material thermo chromium which sees its optical properties changing at the time of the transition from the phase of semiconductor state ↔ metal, at a critical temperature of 68°C. The study of the optical properties of a thin layer of VO₂ thickness 82 nm, such as the dielectric function, the index of refraction, the coefficient ofextinction, the absorption’s coefficient, the reflectivity, the transmittivity, in the photonic spectrum of energy ω located inthe interval: 0.001242 ≤ ω (ev) ≤ 6, enables us to control well its practical utility in various applications, like the intelligentpanes, the photovoltaic, paintings for increasing energy efficiency in buildings, detectors of infra-red (I.R) or ultra-violet(U.V). We will make simulations with Maple and compare our results with those of the literature

ALLEGHENY STAINLESS TYPE 405

Alloy Digest ◽  
1985 ◽  
Vol 34 (7) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Critical Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Ductile Material ◽  
Air Cooling ◽  
Temperature Performance

Abstract ALLEGHENY STAINLESS Type 405, unlike most other 12% chromium steels, is not subject to appreciable hardening through air cooling from high temperatures. This is an advantageous characteristic in those applications where a soft, ductile material is required after rapid cooling from above the critical temperature. The nonhardening tendency of Type 405 also retards the formation of hardening cracks where welding is employed. Its uses include annealing boxes and baffles where hardening during cooling would be undesirable. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as heat treating and machining. Filing Code: SS-461. Producer or source: Allegheny Ludlum Corporation.

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