Does the face-centered-cubic, nearest-neighbor Heisenberg antiferromagnet have a non-zero Néel temperature?

1973 ◽  
Vol 46 (1) ◽  
pp. 63-64 ◽  
Author(s):  
R.H. Swendsen
Keyword(s):  
Nearest Neighbor ◽  
Face Centered Cubic ◽  
Neel Temperature ◽  
Heisenberg Antiferromagnet ◽  
Néel Temperature ◽  
The Face ◽  
Face Centered

scholarly journals Composition analysis of AU–AG and AU–CU solid solution alloys by Friedel’s periodic spherical oscillation model

2021 ◽  
pp. 2141015
Author(s):  
Hai-Lian Hong ◽  
Chi-Hsin Yang ◽  
Kun-Chieh Wang ◽  
Hao Gao ◽  
Hui-Xian Yan
Keyword(s):  
Solid Solution ◽  
Nearest Neighbor ◽  
Solid Solution Alloy ◽  
Composition Analysis ◽  
High Symmetry ◽  
Face Centered Cubic ◽  
Composition Formula ◽  
Common Grade ◽  
The Face ◽  
Face Centered

In this work, a two-nearest-neighbor structure model, named the 3-1 model, of the face-centered cubic (FCC) solid solution alloy is found based on the Cowley short-range order parameter and the Friedel’s periodic spherical oscillated (FPSO) model. The proposed 3-1 model has high symmetry, high density, and large separation. The model error between the 3-1 model and the standard spherical periodic model is only 0.004 nm. Besides, the chemical composition formula of the present model is applied to analyze the common grade compositions of various alloys. This work shows that the 3-1 model has universality in mature industrial grades of Au–Ag and Au–Cu alloys, and provides a simplified method to design the composition of alloys.

Determination of the Néel Temperature of Face-Centered-Cubic Iron

1970 ◽  
Vol 1 (7) ◽  
pp. 3208-3208 ◽  
Author(s):  
G. J. Johanson ◽  
M. B. McGirr ◽  
D. A. Wheeler
Keyword(s):  
Face Centered Cubic ◽  
Neel Temperature ◽  
Néel Temperature ◽  
Face Centered

scholarly journals The Neel Temperature and Sublattice Magnetization for the Stacked Triangular-Lattice Antiferromagnet with a Weak Interlayer Coupling

2009 ◽  
Vol 152-153 ◽  
pp. 257-260 ◽  
Author(s):  
A.N. Ignatenko ◽  
Valentin Yu. Irkhin ◽  
A.A. Katanin
Keyword(s):  
Triangular Lattice ◽  
Nearest Neighbor ◽  
Interlayer Coupling ◽  
Neel Temperature ◽  
Heisenberg Antiferromagnet ◽  
Néel Temperature ◽  
Sublattice Magnetization ◽  
Weak Interlayer ◽  
Interlayer Exchange ◽  
Triangular Lattice Antiferromagnet

The quantum Heisenberg antiferromagnet on the stacked triangular lattice with the intralayer nearest-neighbor exchange interaction J and interlayer exchange J' is considered within the non-linear -model with the use of the renormalization group (RG) approach. For J'  J the asymptotic formula for the Neel temperature TNeel and sublattice magnetization are obtained. RG turns out to be insufficient to describe experimental data since it does not take into account the 2-vortices. Therefore TNeel is estimated using the Monte-Carlo result for the 2D correlation length [10] which has a Kosterlitz-type behavior near the temperature TKT where the vortices are activated.

A study of interface sliding at F.C.C.-B.C.C. boundaries in a Cu-Zn alloy

1978 ◽  
Vol 36 (1) ◽  
pp. 422-423
Author(s):  
F. Monchoux ◽  
A. Rocher ◽  
J.L. Martin
Keyword(s):  
Face Centered Cubic ◽  
Creep Tests ◽  
High Voltage Electron Microscopy ◽  
Diffusion Treatment ◽  
Voltage Electron ◽  
The Face ◽  
Face Centered ◽  
Interface Sliding ◽  
Zn Alloy ◽  
Made In

Interphase sliding is an important phenomenon of high temperature plasticity. In order to study the microstructural changes associated with it, as well as its influence on the strain rate dependence on stress and temperature, plane boundaries were obtained by welding together two polycrystals of Cu-Zn alloys having the face centered cubic and body centered cubic structures respectively following the procedure described in (1). These specimens were then deformed in shear along the interface on a creep machine (2) at the same temperature as that of the diffusion treatment so as to avoid any precipitation. The present paper reports observations by conventional and high voltage electron microscopy of the microstructure of both phases, in the vicinity of the phase boundary, after different creep tests corresponding to various deformation conditions.Foils were cut by spark machining out of the bulk samples, 0.2 mm thick. They were then electropolished down to 0.1 mm, after which a hole with thin edges was made in an area including the boundary

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