Published July 1988 | Version v1
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Study of the electric field gradient in EuBa2Cu307-δ (δ ≅0 and δ ≅1)

  • 1. CEA Centre d'Etudes Nucleaires de Grenoble, 38 (France). Dept. de Recherche Fondamentale
  • 2. Ecole Nationale Superieure de Physique de Grenoble, 38 - Saint-Martin-d'Heres (France)
  • 3. Grenoble-1 Univ., 38 (France)

Description

We have measured the quadrupole interaction parameter and the asymmetry coefficient at the 151Eu Moessbauer nucleus for EuBa2Cu307-δ, δ ≅0 and δ ≅1. The measurements have been extended up to 420 K and 600 K respectively. From the temperature dependence of the electric field gradient parameter VEuzz and the isomer shift we deduce that the contribution of the excited electronic state of Eu3+ to the measured parameters is stronger in the superconducting than in the semiconducting oxide

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Additional details

Publishing Information

Imprint Pagination
7 p.
Report number
CEA-CONF--9671

Conference

Title
International Conference on Magnetism (ICM 88).
Dates
25-29 Jul 1988.
Place
Paris (France).