Results 71 to 80 of about 28,956 (218)

Anisotropy of the upper critical field in MgB2: the two-gap Ginzburg-Landau theory

, 2005
The upper critical field in MgB2 is investigated in the framework of the two-gap Ginzburg-Landau theory. A variational solution of linearized Ginzburg-Landau equations agrees well with the Landau level expansion and demonstrates that spatial ...
Angst, Arai, Cubitt, Cubitt, Dahm, Geilikman, Golubov, Golubov, Gurevich, Hohenberg, Kogan, Kong, Lyard, M. E. Zhitomirsky, Mazin, Mazin, Miranovic, Moskalenko, Nagamatsu, Pokrovsky, Rydh, Shi, Skokan, Suhl, Takanaka, Tilley, V. H. Dao, Zhitomirsky   +27 more
core   +2 more sources

Schauder-Tychonoff Fixed-Point Theorem in Theory of Superconductivity

Journal of Function Spaces and Applications, 2013
We study the existence of mild solutions to the time-dependent Ginzburg-Landau ((TDGL), for short) equations on an unbounded interval. The rapidity of the growth of those solutions is characterized.
Mariusz Gil, Stanisław Wędrychowicz
doaj   +1 more source

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

Advanced Materials, Volume 38, Issue 25, 4 May 2026.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz, Elangovan Hemaprabha, Rajesh Mandal, Pravin Kavle, Jamil Tanus, Maya Barzilay, Ching‐Che Lin, David Spirito, Semën Gorfman, Bo Wang, Ignacio J. Villar‐García, Neus Domingo, Long‐Qing Chen, Lane W. Martin, Yachin Ivry   +14 more
wiley   +1 more source

Homogenization of Attractors to Ginzburg-Landau Equations in Media with Locally Periodic Obstacles: Sub- and Supercritical Cases

Қарағанды университетінің хабаршысы. Математика сериясы
The Ginzburg-Landau equation with rapidly oscillating terms in the equation and boundary conditions in a perforated domain was considered. Proof was given that the trajectory attractors of this equation converge weakly to the trajectory attractors of ...
K.A. Бекмаганбетов, Г.А. Чечкин, В.В. Чепыжов, A.А. Толемис   +3 more
doaj   +1 more source

THE GINZBURG–LANDAU EQUATION IN THE HEISENBERG GROUP [PDF]

Communications in Contemporary Mathematics, 2008
We consider a functional related with phase transition models in the Heisenberg group framework. We prove that level sets of local minimizers satisfy some density estimates, that is, they behave as "codimension one" sets. We thus deduce a uniform convergence property of these level sets to interfaces with minimal area.These results are then applied in ...
BIRINDELLI, Isabella, VALDINOCI E.
openaire   +5 more sources

Boosting Photo‐Pyroelectric Effect via Tunable Polarization and Interfacial Defect Engineering

Advanced Science, Volume 13, Issue 25, 4 May 2026.
This study reports Ba(Ti0.85Zr0.15)O3 nanocatalysts with enhanced polarization and oxygen‐vacancy‐rich interfaces for efficient NIR‐II photo‐pyroelectric therapy. Zr doping boosts the pyroelectric coefficient and accelerates polarization switching, while oxygen vacancies improve photothermal conversion and surface reactivity.
Yanli Huang, Haifen Luo, Jie Yin, Shuai Cao, Gaolei Dong, Zhi Tan, Chunlin Zhao, Peiye Wen, Fengwei Sun, Shan Zhang, Xianzeng Zhang, Yunlu Dai, Zhen Yang, Wei Huang   +13 more
wiley   +1 more source

Dynamics of Defects in the Vector Complex Ginzburg-Landau Equation

, 2001
Coupled Ginzburg-Landau equations appear in a variety of contexts involving instabilities in oscillatory media. When the relevant unstable mode is of vectorial character (a common situation in nonlinear optics), the pair of coupled equations has special ...
Amengual, Aranson, Aranson, Aranson, Bhandari, Coullet, Cross, Eguiluz, Eguiluz, Emilio Hernández-Garcı́a, Etrich, Firth, Gallego, Gil, Gil, Gomila, Hagan, Hendrey, Hernández-Garcı́a, Hernández-Garcı́a, Hoyuelos, Lega, Leggett, Maxi San Miguel, Michaelis, Miguel Hoyuelos, Montagne, Montagne, Montagne, Oppo, Pere Colet, Pismen, Pismen, San Miguel, Staliunas, Staliunas, Tlidi, Yang   +37 more
core   +1 more source

New Analytical Solutions of Fractional Complex Ginzburg-Landau Equation

Universal Journal of Mathematics and Applications, 2020
In recent years, nonlinear concepts have attracted a lot of attention due to the deep mathematics and physics they contain. In explaining these concepts, nonlinear differential equations appear as an inevitable tool.
Ali Tozar
doaj   +1 more source

Bridging Superconductors With United Nations Development Goals: Perspectives and Applications

physica status solidi (a), Volume 223, Issue 7, 7 April 2026.
Ceramic superconductors enable sustainable technologies. A bibliometric review of 33,756 publications (1980–2025) assesses their alignment with the UN Sustainable Development Goals. Key applications identified from include clean propulsion, efficient power grids, advanced medical imaging, and quantum computing, highlighting both their transformative ...
Edimar A. S. Duran, Alfonso Pulgar, Rodolfo Izquierdo, Diana M. Koblischka, Anjela Koblischka‐Veneva, Michael R. Koblischka, Maycon Motta, Tiago T. Saraiva, Andrey S. Vasenko, Rafael Zadorosny   +9 more
wiley   +1 more source

Fractional generalization of the Ginzburg-Landau equation: An unconventional approach to critical phenomena in complex media

, 2004
Equations built on fractional derivatives prove to be a powerful tool in the description of complex systems when the effects of singularity, fractal supports, and long-range dependence play a role.
Milovanov, Alexander V., Rasmussen, Jens J.   +1 more
core   +1 more source