caa a22 4500 445380365 CHVBK 20180317143015.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10948-010-1099-8 doi (NATIONALLICENCE)springer-10.1007/s10948-010-1099-8 Perturbed Angular Correlations Studies in the HgBa2CaCu2O6+ δ high-T C Superconductor [Elektronische Daten] [T. Mendonça, J. Correia, H. Haas, P. Odier, P. Tavares, M. da Silva, A. Lopes, C. Darie, J. Araujo] The electric field gradients at 199mHg nuclei have been measured via the perturbed angular correlation (PAC) technique, allowing a full characterization of the Hg neighborhood charge distribution at high oxygen doping on the Hg planes. The PAC technique has been applied to investigate the effect of high oxygen pressure during the measurement. Polycrystalline HgBa2CaCu2O6+δ (Hg-1212) samples have been annealed at 152 bar pressurized oxygen. The influence of oxygen pressure during the experiment was then investigated by measuring the samples at atmospheric pressure and under 152 bar oxygen pressure. The present set of PAC experiments shows that at high oxygen concentrations there is a non-uniform oxygen distribution. Moreover, the Hg environment is not free from oxygen and the results hint to a new type of ordering. Springer Science+Business Media, LLC, 2010 Hg-based superconductors nationallicence Oxygen ordering nationallicence Local probe techniques nationallicence Mendonça T. IFIMUP and IN—Institute of Nanosciences and Nanotechnologies, Porto, Portugal aut Correia J. Instituto Tecnológico e Nuclear, Sacavém, Portugal aut Haas H. Instituto Tecnológico e Nuclear, Sacavém, Portugal aut Odier P. Institut Néel, CNRS, Grenoble, France aut Tavares P. Centro de Quimica—Vila Real, Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal aut da Silva M. Centro de Fisica Nuclear, Universidade de Lisboa, Lisbon, Portugal aut Lopes A. Centro de Fisica Nuclear, Universidade de Lisboa, Lisbon, Portugal aut Darie C. Institut Néel, CNRS, Grenoble, France aut Araujo J. IFIMUP and IN—Institute of Nanosciences and Nanotechnologies, Porto, Portugal aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/3(2011-04-01), 1153-1156 1557-1939 24:3<1153 2011 24 10948 https://doi.org/10.1007/s10948-010-1099-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-1099-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mendonça T. IFIMUP and IN—Institute of Nanosciences and Nanotechnologies, Porto, Portugal aut NATIONALLICENCE 700 1- Correia J. Instituto Tecnológico e Nuclear, Sacavém, Portugal aut NATIONALLICENCE 700 1- Haas H. Instituto Tecnológico e Nuclear, Sacavém, Portugal aut NATIONALLICENCE 700 1- Odier P. Institut Néel, CNRS, Grenoble, France aut NATIONALLICENCE 700 1- Tavares P. Centro de Quimica—Vila Real, Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal aut NATIONALLICENCE 700 1- da Silva M. Centro de Fisica Nuclear, Universidade de Lisboa, Lisbon, Portugal aut NATIONALLICENCE 700 1- Lopes A. Centro de Fisica Nuclear, Universidade de Lisboa, Lisbon, Portugal aut NATIONALLICENCE 700 1- Darie C. Institut Néel, CNRS, Grenoble, France aut NATIONALLICENCE 700 1- Araujo J. IFIMUP and IN—Institute of Nanosciences and Nanotechnologies, Porto, Portugal aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/3(2011-04-01), 1153-1156 1557-1939 24:3<1153 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer