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Abstract:

We report on marked thermomagnetic history effects in the ac susceptibility of YBa2Cu3O7 single crystals below the melting transition. We found that as the ac field front invades the sample it induces a. local annealing of the vortex lattice reducing the critical current density, Jc. As a consequence, different parts of the sample can be in different pinning regimes. The order-disorder spatial profile is stable and leads to memory effects both in temperature and ac field. © 2000 Elsevier Science B.V. All rights reserved.

Registro:

Documento: Artículo
Título:History dependence in the ac susceptibility of YBa2Cu3O7 single crystals
Autor:Valenzuela, S.O.; Bekeris, V.
Filiación:Laboratories de Bajas Temperaturas, Departamento de Física, Universidad Nacional de Buenos Aires, Pabellin I, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave:Annealing; Critical current density (superconductivity); Electric fields; Magnetic susceptibility; Melting; Order disorder transitions; Single crystals; Thermal effects; Yttrium barium copper oxides; AC susceptibility; Thermomagnetic history effect; Vortex lattice; Yttrium barium copper oxide single crystal; Oxide superconductors
Año:2000
Volumen:341-348
Número:PART 3
Página de inicio:1103
Página de fin:1104
DOI: http://dx.doi.org/10.1016/S0921-4534(00)00804-2
Título revista:Physica C: Superconductivity and its Applications
Título revista abreviado:Phys C Supercond Appl
ISSN:09214534
CODEN:PHYCE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v341-348_nPART3_p1103_Valenzuela

Referencias:

  • Henderson, W., (1998) Phys. Rev. Lett., 81, p. 2352
  • Paltiel, Y., (2000) Nature, 403, p. 398
  • Bracanovic, D., (1998) Physica C, 296, p. 1

Citas:

---------- APA ----------
Valenzuela, S.O. & Bekeris, V. (2000) . History dependence in the ac susceptibility of YBa2Cu3O7 single crystals. Physica C: Superconductivity and its Applications, 341-348(PART 3), 1103-1104.
http://dx.doi.org/10.1016/S0921-4534(00)00804-2
---------- CHICAGO ----------
Valenzuela, S.O., Bekeris, V. "History dependence in the ac susceptibility of YBa2Cu3O7 single crystals" . Physica C: Superconductivity and its Applications 341-348, no. PART 3 (2000) : 1103-1104.
http://dx.doi.org/10.1016/S0921-4534(00)00804-2
---------- MLA ----------
Valenzuela, S.O., Bekeris, V. "History dependence in the ac susceptibility of YBa2Cu3O7 single crystals" . Physica C: Superconductivity and its Applications, vol. 341-348, no. PART 3, 2000, pp. 1103-1104.
http://dx.doi.org/10.1016/S0921-4534(00)00804-2
---------- VANCOUVER ----------
Valenzuela, S.O., Bekeris, V. History dependence in the ac susceptibility of YBa2Cu3O7 single crystals. Phys C Supercond Appl. 2000;341-348(PART 3):1103-1104.
http://dx.doi.org/10.1016/S0921-4534(00)00804-2