http://www.cnr.it/ontology/cnr/individuo/prodotto/ID248816
On the role of Nd/Ba disorder on the superconducting properties of Re1(NdxBa2-x)Cu3O7-delta (Re= Nd, Y) thin films (Contributo in atti di convegno)
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- On the role of Nd/Ba disorder on the superconducting properties of Re1(NdxBa2-x)Cu3O7-delta (Re= Nd, Y) thin films (Contributo in atti di convegno) (literal)
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- 2000-01-01T00:00:00+01:00 (literal)
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- 10.1142/s0217979200002831 (literal)
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Salluzzo, M. and Andreone, A. and Cassinese, A. and Iavarone, M. and Maglione, M. G. and Palomba, F. and Pica, G. and Vaglio, R. (2000)
On the role of Nd/Ba disorder on the superconducting properties of Re1(NdxBa2-x)Cu3O7-delta (Re= Nd, Y) thin films
in Congresso SATT 10, Centro di ricerche ENEA di FRASCATI Frascati (ROMA), 9-12 Maggio (2000).
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- Salluzzo, M. and Andreone, A. and Cassinese, A. and Iavarone, M. and Maglione, M. G. and Palomba, F. and Pica, G. and Vaglio, R. (literal)
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- INFM-Department of Physics, University Federico II of Naples, Napoli, Italy (literal)
- Titolo
- On the role of Nd/Ba disorder on the superconducting properties of Re1(NdxBa2-x)Cu3O7-delta (Re= Nd, Y) thin films (literal)
- Abstract
- The role of disorder on the superconducting properties of Re-1(NdxBa2-x)Cu3O7-delta (Re = Nd, Y) epitaxial thin films has been studied. The films are deposited by Ar+O-2 magnetron and diode de sputtering from targets characterised by different x (0, 0.08, and 0.12). In situ X-ray Photoemission Spectroscopy (XPS), Scanning Tunneling Microscopy (STM), and nonconventional x-ray diffraction measurements have been used to determine the exact composition and the structural properties of each sample. The temperature dependence of the ab-plane penetration depth of highly c-axis epitaxial samples, characterised by different Nd/Ba ratios, has been determined by an inverted microstrip resonator technique. Results on the Nd1-xBa2-xCu3O7-delta system show that only stoichiometric films exhibit a linear penetration depth at low temperature while Nd-rich films show a T-2 law. Preliminary measurements on the Y-1(NdxBa2-x)Cu3O7-delta system confirm these results. The data are analysed in the framework of the d-wave model taking into account the effect of impurities on the superconducting properties. (literal)
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