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Electric and magnetic response of Li-doped YBa2Cu3O7(LiF)x under neutron irradiation

V. SANDU1,* , G. ALDICA1, E. SANDU2, P. NITA3

Affiliation

  1. National Institute of Materials Physics, 105 b Atomistilor, Magurele, 077125 Romania
  2. National Institute of Physics and Nuclear Engineering “Horia Hulubei”, 407 Atomistilor, Magurele, 077125 Romania
  3. METAV SA, 67-77 Biharia, Bucharest, 013981, Romania

Abstract

We investigate the effect of neutron irradiation on the electric and magnetic properties, including the enhancement of the critical current density, of ceramics YBa2Cu3O7(LiF)x samples. The most important finding has been that the level of Lidoping is crucial for the postirradiation response. The irreversibility increases for more than two times in the samples with x ≤ 0.04 after neutron irradiation at 5×1017 neutrons/cm2 but less for higher concentrations. The effects of the irradiation on the electric transport and ac-susceptibility suggest a self-organization of the defects at low Li content and a uniformly space distribution for x ≥ 0.08..

Keywords

YBa2Cu3O7, neutron irradiation, Self-organization, Critical current density, Magnetization.

Submitted at: Jan. 9, 2007
Accepted at: Dec. 7, 2007

Citation

V. SANDU, G. ALDICA, E. SANDU, P. NITA, Electric and magnetic response of Li-doped YBa2Cu3O7(LiF)x under neutron irradiation, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 12, pp. 3832-3836 (2007)