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New Baxter phase in the Ashkin-Teller model on a cubic lattice
(Elsevier B.V., 2018-02-06)
The mean field theory results are obtained from the Bogoliubov inequality for the spin-1/2 Ashkin-Teller model on a cubic lattice for different cluster sizes. The phase diagram, magnetization and free energy are obtained. ...
Phase portraits of reversible linear differential systems with cubic homogeneous polynomial nonlinearities having a non-degenerate center at the origin
(2009-12-01)
In this paper we classify the global phase portraits of all reversible linear differential systems with cubic homogeneous polynomial nonlinearities defined in the plane and having a non degenerate center at the origin. The ...
Dispersion Of Chitosan In Liquid Crystalline Lamellar Phase: Production Of Biofriendly Hydrogel Of Nano Cubic Topology
(Elsevier Sci LTDOxford, 2017)
Phase stability and properties of Bi6Te2O13+delta (delta=0 or 2)
(Elsevier B.V., 2021-03-15)
The crystalline Bi6Te2O15 and Bi6Te2O13 phases with orthorhombic and cubic symmetries, respectively, were synthesized by solid-state reaction synthesis. A study of the thermal stability of both phases was carried out, being ...
Structural phase transition study of FePt alloys using ab initio calculation
(Elsevier B.V. Sa, 2009-09-25)
The FePt alloy undergoes the cubic to tetragonal lattice transformation in the ferromagnetic state. We calculated the electronic structure for both cubic and tetragonal structures using the FPLAPW method with APW + lo. ...
Structural phase transition study of FePt alloys using ab initio calculation
(Elsevier B.V. Sa, 2009-09-25)
The FePt alloy undergoes the cubic to tetragonal lattice transformation in the ferromagnetic state. We calculated the electronic structure for both cubic and tetragonal structures using the FPLAPW method with APW + lo. ...
Direct amorphous-to-cubic perovskite phase transformation for lead titanate
(2000-01-01)
The phase evolution of lead titanate processed by the polymeric precursor method was investigated by thermal analysis, X-ray diffraction, and high-resolution transmission electron microscopy. The results showed that the ...
Multicritical phase diagram of the three-dimensional Ashkin-Teller model including metastable and unstable phases
(Elsevier B.V., 2019-01-01)
The mean field approximation from the Bogoliubov inequality is applied to study the ferromagnetic Ashkin-Teller model in three dimensions. Phase transitions for the stable, metastable and unstable states is observed. From ...
Topotatic-like phase transformation of amorphous lead titanate to cubic lead titanate
(Amer Ceramic Soc, 2002-09-01)
The crystallization process of lead titanate (PT) prepared using the polymeric precursor method was investigated using X-ray diffractometry, Raman spectroscopy, electron microscopy, and X-ray absorption spectroscopy ...
Topotatic-like phase transformation of amorphous lead titanate to cubic lead titanate
(Amer Ceramic Soc, 2002-09-01)
The crystallization process of lead titanate (PT) prepared using the polymeric precursor method was investigated using X-ray diffractometry, Raman spectroscopy, electron microscopy, and X-ray absorption spectroscopy ...