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Tridimensional simulations of the demagnetization effects in nanostructured superconducting films

Grant number: 12/04388-0
Support Opportunities:Regular Research Grants
Duration: October 01, 2012 - September 30, 2014
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Edson Sardella
Grantee:Edson Sardella
Host Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

Since the discovery of modern techniques of fabrication of superconductor sof very small size (films of thickness of order of nanometers and length and width of order of micrometers), in the last two decades people have become more interested, both from the theoretical and experimental point of view, in the magnetic and structural properties of the vortex lattice in nanostructured materials. People have realized that these properties are very different in materials of mesoscopic dimensions with respect to the those of macroscopic dimensions. In previous works we have developed a computational code on our own in order to study problems through the time dependent Ginzburg-Landau equations for systems with invariance along the $z$ direction. The external applied field is considered along this samedirection. In other words, demagnetization effects were not considered. In this project we will develop a computational code for systems of arbitrary thickness. [As a matter of fact, this code has already been developed and tested.] We will apply this program for several types of geometries described through the text. (AU)

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Scientific publications (9)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BARBA-ORTEGA, J.; SARDELLA, EDSON; AGUIAR, J. ALBINO. Superconducting properties of a parallelepiped mesoscopic superconductor: A comparative study between the 2D and 3D Ginzburg-Landau models. Physics Letters A, v. 379, n. 7, p. 732-737, . (12/04388-0)
BARBA-ORTEGA, J.; SARDELLA, EDSON. Superconducting properties of a mesoscopic parallelepiped with anisotropic surface conditions. Physics Letters A, v. 379, n. 47-48, p. 3130-3135, . (12/04388-0)
CADORIM, LEONARDO RODRIGUES; DE OLIVEIRA JUNIOR, ALEXSSANDRE; SARDELLA, EDSON. Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field. SCIENTIFIC REPORTS, v. 10, n. 1, . (12/04388-0, 20/03947-2, 15/21189-0)
DUARTE, E. C. S.; SARDELLA, E.; ORTIZ, W. A.; ZADOROSNY, R.. Dynamics and heat diffusion of Abrikosov's vortex-antivortex pairs during an annihilation process. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 29, n. 40, . (16/12390-6, 12/04388-0, 07/08072-0)
BARBA-ORTEGA, J.; SARDELLA, EDSON; ZADOROSNY, R.. Influence of the deGennes extrapolation parameter on the resistive state of a superconducting strip. Physics Letters A, v. 382, n. 4, p. 215-219, . (16/12390-6, 12/04388-0)
OKIMOTO, D.; SARDELLA, E.; ZADOROSNY, R.. Profile and Crowding of Currents in Mesoscopic Superconductors With an Array of Antidots. IEEE Transactions on Applied Superconductivity, v. 25, n. 3, . (13/17719-8, 12/04388-0)
CADORIM, LEONARDO R.; ROMAGUERA, ANTONIO R. DE C.; DE OLIVEIRA, ISAIAS G.; GOMES, RODOLPHO R.; DORIA, MAURO M.; SARDELLA, EDSON. Intermediate type-I superconductors in the mesoscopic scale. Physical Review B, v. 103, n. 1, . (12/04388-0, 20/03947-2)
CADORIM, LEONARDO RODRIGUES; CALSOLARI, THIAGO DE OLIVEIRA; ZADOROSNY, RAFAEL; SARDELLA, EDSON. Crossover from type I to type II regime of mesoscopic superconductors of the first group. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 32, n. 9, . (12/04388-0)
CADORIM, LEONARDO R.; ROMAGUERA, ANTONIO R. DE C.; DE OLIVEIRA, ISAIAS G.; GOMES, RODOLPHO R.; DORIA, MAURO M.; SARDELLA, EDSON. Intermediate type-I superconductors in the mesoscopic scale. PHYSICAL REVIEW B, v. 103, n. 1, p. 6-pg., . (12/04388-0, 20/03947-2)

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