Derivation of the Model Hamiltonian for HCP and FCC Structures from the Pairwise Interaction Model and Low Temperature Analysis of the Model Hamiltonian

1994 ◽  
Vol 63 (10) ◽  
pp. 3671-3682 ◽  
Author(s):  
Mahito Mabuchi ◽  
Hirotsugu Kubo ◽  
Yoshifumi Yamashita
Keyword(s):  
Low Temperature ◽  
Interaction Model ◽  
Pairwise Interaction ◽  
Temperature Analysis ◽  
Model Hamiltonian

MAGNETIZATION OF THE PURE STATES IN THE p-SPIN INTERACTION MODEL

2004 ◽  
Vol 18 (04n05) ◽  
pp. 773-784
Author(s):  
M. TALAGRAND
Keyword(s):  
Low Temperature ◽  
Finite Number ◽  
Interaction Model ◽  
Spin Interaction ◽  
Rigorous Proof ◽  
Pure States ◽  
Number Of Cells

We study the magnetization of the pure states in (a suitable version of) the p-spin interaction model at low temperature. We give a rigorous proof of the phenomenon, discovered in 1 that (very roughly speaking), at a given level of accuracy, the set of sites decomposes in a finite number of cells on which the magnetization of any different pure states are uncorrelated.

scholarly journals Temperature study of magnetic resonance spectra of co-modified (Co,N)-TiO2 nanocomposites

2016 ◽  
Vol 34 (2) ◽  
pp. 242-250 ◽  
Author(s):  
Nikos Guskos ◽  
Janusz Typek ◽  
Grzegorz Zolnierkiewicz ◽  
Aleksander Guskos ◽  
Pawel Berczynski ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Low Temperature ◽  
Cobalt Nanoparticles ◽  
Resonance Spectroscopy ◽  
Temperature Analysis ◽  
Epr Spectrum ◽  
Paramagnetic Resonance ◽  
Magnetic Polarons ◽  
Integrated Intensity ◽  
Electron Paramagnetic

AbstractThe (nCo,N)-TiO2 (n = 1, 5 and 10 wt.% of Co) nanocomposites were investigated by magnetic resonance spectroscopy in 4 K to 290 K range. Analyses of ferromagnetic/electron paramagnetic resonance (FMR/EPR) spectra in terms of four Callen lineshape components revealed the existence of two types of magnetic centers, one derived from metallic cobalt nanoparticles in superparamagnetic (SPM) phase and the other from cobalt clusters in the TiO2 lattice. Additionally, at low temperature the EPR spectrum arising from Ti3+ ions was also registered. Both relaxations of the Landau-Lifshitz type and the Bloch-Bloembergen type played an important role at high temperature in determining the linewidths and the latter relaxation was prevailing at low temperature. Analysis of the integrated intensity showed that the SPM signal is due to small size FM cobalt nanoparticles while the paramagnetic signal from Co clusters originates from those nanoparticles in which the concentration of magnetic polarons is below the percolation threshold.

scholarly journals Fluid-Solid Boundary Handling Using Pairwise Interaction Model for Non-Newtonian Fluid

Symmetry ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 94 ◽  
Author(s):  
Xiaokun Wang ◽  
Xiaojuan Ban ◽  
Runzi He ◽  
Di Wu ◽  
Xing Liu ◽  
...  
Keyword(s):  
Newtonian Fluid ◽  
Interaction Model ◽  
Pairwise Interaction ◽  
Solid Boundary
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