Surface morphology of PrBa2Cu3O7-δ single crystals after the long-lasting high-temperature reduction

[1] A. Kebede, C.S. Jee, J. Schwegler, J.E. Crow, T. Mihalisin, G.H. Myer, R.E. Salomon, P. Schlottmann, M.V. Kuric, S.H. Bloom, and R.P. Guertin: “Magnetic ordering and superconductivity in Y 1−xPrxBa2Cu3O7−y”, Phys. Rev. B, Vol. 40, (1989), pp. 4453–4462. http://dx.doi.org/10.1103/PhysRevB.40.445310.1103/PhysRevB.40.4453Search in Google Scholar

[2] M.E. Lopez-Morales, D. Rios-Jara, J. Taguea, R. Escudero, S. La Placa, A. Bezinge, V.Y. Lee, E.M. Engler, and P.M. Grant: “Role of oxygen in PrBa 2Cu3O7−y: Effect on structural and physical properties”, Phys. Rev. B, Vol. 44, (1991), pp. 6655–6667. Search in Google Scholar

[3] H.D. Yang and M.W. Lin: “Effects of Zn and Ga substitution on the magnetic properties ofPrBa 2Cu3O7−y”, Phys. Rev. B, Vol. 46, (1992), pp. 5348–5387 Search in Google Scholar

[4] S.K. Malik, C.V. Tomy, and Parag Bhargava: “Suppression of superconductivity in the oxide systemsR 1−xPrxBa2Cu3O7−y (R=Sm, Gd, and Tm)”, Phys. Rev. B, Vol. 44, (1991), pp. 7042–7045. http://dx.doi.org/10.1103/PhysRevB.44.704210.1103/PhysRevB.44.7042Search in Google Scholar

[5] S.K. Malik, S.M. Pattalwar, and C.V. Tomy: “Magnetic-susceptibility and heat-capacity measurements on Pr-richPrBa 2−xPrxCu3O7−y compounds”, Phys. Rev. B, Vol. 46, (1992), pp. 524–527. http://dx.doi.org/10.1103/PhysRevB.46.52410.1103/PhysRevB.46.524Search in Google Scholar

[6] H.D. Yang, M.W. Lin, C.K. Chiou, and W.H. Lee: “Magnetic ordering and chain transport ofPrBa 2Cu3O7−y”, Phys. Rev. B, Vol. 46, (1992), pp. 1176–1181. http://dx.doi.org/10.1103/PhysRevB.46.117610.1103/PhysRevB.46.1176Search in Google Scholar

[7] H.B. Radousky: “A review of the superconducting and normal state properties ofY 1−xPrxBa2Cu3O7”, Journal of Materials Research, Vol. 7, (1992), pp. 1917–1955. Search in Google Scholar

[8] C.H. Booth, F. Bridges, J.B. Boyce, T. Claeson, Z.X. Zhao, and P. Cervantes: “Local disorder in the oxygen environment around praseodymium in Y 1−xPrxBa2Cu3O7 from x-ray-absorption fine structure”, Phys. Rev. B, Vol. 49, (1994), pp. 3432–3442. http://dx.doi.org/10.1103/PhysRevB.49.343210.1103/PhysRevB.49.3432Search in Google Scholar

[9] S.K. Malik, W.B. Yelon, J.J. Rhyne, W.J. James, R. Prasad, K. Adhikary, and N.C. Soni: “Structural and magnetic properties of intermediate oxygen stoichiometry ofPrBa 2Cu3Ox”, Solid State Commun., Vol. 89, (1994), pp. 383–387. http://dx.doi.org/10.1016/0038-1098(94)90605-X10.1016/0038-1098(94)90605-XSearch in Google Scholar

[10] H.A. Blackstead, John D. Dow, D.B. Chrisey, J.S. Horwitz, M.A. Black, P.J. McGinn, A.E. Klunzinger, and D.B. Pulling: “Observation of superconductivity in PrBa 2Cu3Ox”, Phys. Rev. B, Vol. 54, (1996), pp. 6122–6125. http://dx.doi.org/10.1103/PhysRevB.54.612210.1103/PhysRevB.54.6122Search in Google Scholar

[11] Z. Zou, K. Oka, T. Ito, and Y. Nishihara; “Bulk superconductivity in single crystals ofPrBa 2Cu3Ox”, Japanese Journal of Applied Physics Part 2—Letters, Vol. 36, (1997), pp. L18–20. http://dx.doi.org/10.1143/JJAP.36.L1810.1143/JJAP.36.L18Search in Google Scholar

[12] Z. Zou, J. Ye, K. Oka, and Y. Nishihara: “SuperconductingPrBa 2Cu3Ox”, Phys. Rev. Lett., Vol. 80, (1998), pp. 1074–1077. http://dx.doi.org/10.1103/PhysRevLett.80.107410.1103/PhysRevLett.80.1074Search in Google Scholar

[13] K. Oka, Z. Zou, and J. Ye: “Crystal growth of superconductivePrBa 2Cu3O7−y”, Physica C, Vol. 300, (1998), pp. 200–206. http://dx.doi.org/10.1016/S0921-4534(98)00130-010.1016/S0921-4534(98)00130-0Search in Google Scholar

[14] A. Erb: “The impact of crystal growth, oxygenation and microstructure on the physics of the rare earth (123) superconductors”, Thesis Habilitation, University of Geneva, Switzerland, 1999. Search in Google Scholar

[15] M. Łuszek, W. Sadowski, T. Klimczuk, J. Olchowik, B. Susła, and R. Czajka: “Superconductivity in PrBa 2Cu3O7-δ single crystals after high-temperature thermal treatment”, Physica C, Vol. 322, (1999), pp. 57–64. http://dx.doi.org/10.1016/S0921-4534(99)00412-810.1016/S0921-4534(99)00412-8Search in Google Scholar

[16] M. Łuszczek, W. Sadowski, T. Klimczuk, and J. Olchowik: “Structural properties of superconductingPrBa 2Cu3O7-δ single crystals”, Physica C, Vol. 341-348, (2000), pp. 523–524. http://dx.doi.org/10.1016/S0921-4534(00)00573-610.1016/S0921-4534(00)00573-6Search in Google Scholar

[17] F.M. Araujo-Moreira, P.N. Lisboa-filho, S.M. Zanetti, E.R. Leite, and W.A. Ortiz: “Superconductivity in sintered-polycrystallinePrBa 2Cu3O7-δ”, Physica B, Vol. 284–288, (2000), pp. 1033. http://dx.doi.org/10.1016/S0921-4526(99)02374-110.1016/S0921-4526(99)02374-1Search in Google Scholar

[18] H.A. Blackstead, and J.D. Dow: “Implications of superconductivity ofPrBa 2Cu3O7”, Solid State Commun., Vol. 115, (2000), pp. 137–140. http://dx.doi.org/10.1016/S0038-1098(00)00141-110.1016/S0038-1098(00)00141-1Search in Google Scholar

[19] J.D. Dow, and D.R. Harshman: “Explanation of high-temperature superconductivity without cuprate planes”, Philosophical Magazine B—Physics of Condensed Matter, Structural Electronic Optical and Magnetic Properties, Vol. 82, (2002), pp. 1055–1066. Search in Google Scholar

[20] M. Łuszczek, and R. Laskowski: “The influence ofPr Ba disorder on the electronic structure ofPrBa 2Cu3O7”, phys. stat. sol. (b), Vol. 230, (2002), pp. R1-R3. http://dx.doi.org/10.1002/1521-3951(200204)230:2<R1::AID-PSSB99991>3.0.CO;2-A10.1002/1521-3951(200204)230:2<R1::AID-PSSB99991>3.0.CO;2-ASearch in Google Scholar

[21] M. Park, M.J. Kramer, K.W. Dennis, and R.W. McCallum: “Phase equilibria in the Pr−Ba−Cu−O system under varied oxygen partial pressures”, Physica C, Vol. 259 (1996), pp. 43–53. http://dx.doi.org/10.1016/0921-4534(96)00006-810.1016/0921-4534(96)00006-8Search in Google Scholar

[22] W. Sadowski, M. Gazda, B. Kusz, T. Klimczuk, M. Łuszczek and J. Olchowik: “Growth and characterization ofPrBa 2Cu3O7-delta single crystals”, Physica C, Vol. 235-240, (1994), pp. 363–364. http://dx.doi.org/10.1016/0921-4534(94)91405-210.1016/0921-4534(94)91405-2Search in Google Scholar

[23] M. Łuszczek, and W. Sadowski: “Growth and electric transport of Ca-dopedPrBa 2Cu3O7-δ single crystals”, Crystal Research and Technology, Vol. 36, (2001), pp. 917–923. http://dx.doi.org/10.1002/1521-4079(200110)36:8/10<917::AID-CRAT917>3.0.CO;2-B10.1002/1521-4079(200110)36:8/10<917::AID-CRAT917>3.0.CO;2-BSearch in Google Scholar