caa a22 4500 445381477 CHVBK 20180317143018.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0947-x doi (NATIONALLICENCE)springer-10.1007/s10948-010-0947-x Superconducting Behavior of Interfaces in Graphite: Transport Measurements of Micro-constrictions [Elektronische Daten] [S. Dusari, J. Barzola-Quiquia, P. Esquinazi] We have studied the magnetoresistance (MR) of thin highly oriented pyrolytic graphite mesoscopic samples without and with micro-constrictions of different widths between the voltage electrodes. The MR for fields parallel to the c-axis shows an anomalous hysteresis loop compatible with the behavior expected for granular superconductors. The smaller the constriction width, the larger is the anomalous hysteresis and the higher the temperature for its observation. Our results support the existence of granular superconductivity probably embedded at interfaces between crystalline graphite regions. Springer Science+Business Media, LLC, 2010 Graphite nationallicence Superconductivity at interfaces nationallicence Granular superconductivity nationallicence Dusari S. Division of Superconductivity and Magnetism, University of Leipzig, Linnéstrasse 5, 04013, Leipzig, Germany aut Barzola-Quiquia J. Division of Superconductivity and Magnetism, University of Leipzig, Linnéstrasse 5, 04013, Leipzig, Germany aut Esquinazi P. Division of Superconductivity and Magnetism, University of Leipzig, Linnéstrasse 5, 04013, Leipzig, Germany aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 401-405 1557-1939 24:1-2<401 2011 24 10948 https://doi.org/10.1007/s10948-010-0947-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0947-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dusari S. Division of Superconductivity and Magnetism, University of Leipzig, Linnéstrasse 5, 04013, Leipzig, Germany aut NATIONALLICENCE 700 1- Barzola-Quiquia J. Division of Superconductivity and Magnetism, University of Leipzig, Linnéstrasse 5, 04013, Leipzig, Germany aut NATIONALLICENCE 700 1- Esquinazi P. Division of Superconductivity and Magnetism, University of Leipzig, Linnéstrasse 5, 04013, Leipzig, Germany aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 401-405 1557-1939 24:1-2<401 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer