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Author (up) Causa, M. T.; Fainstein, C.; Nieva, G.; S\'anchez, R.; Steren, L. B.; Tovar, M.; Zysler, R.; Vier, D. C.; Schultz, S.; Oseroff, S. B.; Fisk, Z.; Smith, J. L.
Title Crystal-field interaction in the GdxEu1-xBa2Cu3O7-? superconductors Type Journal Article
Year 1988 Publication Physical Review B Abbreviated Journal Phys. Rev. B
Volume 38 Issue Pages 257-261
Keywords
Abstract We report here experimental data on the crystal-field interaction of gadolinium ions with their environment in GdxEu1-xBa2Cu3O7-?. The ESR spectrum and a Schottky anomaly in the specific heat of dilute samples (x?1) indicate the existence of a crystal-field splitting of the 8S7/2 ground state of Gd3+ ions of about 1.5 K. We discuss the parametrization of the measured splitting in terms of an effective Hamiltonian, and the microscopic origin of the interaction within the framework of a superposition model. Since the single-ion energies involved are of the same order of magnitude as the energies associated with the magnetic ordering of the Gd3+ moments in GdBa2Cu3O7-? (TN?2.24 K), we analyze the effects of the crystal-field interaction on the magnetic transition.
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Call Number BT @ gnieva @ Serial 433
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Author (up) Causa, M.T.; Fainstein, C.; Nieva, G.; Sánchez, R.; Steren, L. B.; Tovar, M.; Zysler, R.; Vier, D. C.; Schultz, S.; Oseroff, S. B.; Fisk, Z.; Smith, J. L.
Title Crystal Field Interaction and Magnetic Order in GdBa2Cu3O7 Type Book Chapter
Year 1988 Publication Progress in High Temperature Superconductivity Abbreviated Journal
Volume 5 Issue Pages
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Corporate Author Thesis
Publisher World Scientific Place of Publication N.J. Editor J. L. Heiras
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN 978-9971505837 Medium
Area Expedition Conference
Notes Approved no
Call Number BT @ gnieva @ Serial 430
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