Cel A new family of mercury-based cuprate superconductors has recently been discovered. These exhibit a superconducting transition temperature (Tc) significantly higher than all other known superconductors. Many investigations are likely to be performed on them in the near future. For most of these investigations high quality single crystals are required.The scientific groups in St. Petersburg will investigate the influence of crystallization conditions and post-growth treatment on the crystal structure perfection and superconducting properties of mercury-based cuprate crystals. The synthesis methods will be elaborated on this basis, and high quality single crystals will be obtained for electronic structure investigations. These crystals will be characterized by the x-ray diffraction method and MMA. The lattice structure and the exact stoichiometry will be investigated by neutron scattering techniques at Saclay.The groups in the EU will investigate the electronic structure by a variety of spectroscopies such as EELS, ARUPS, XAS, STM, TEM, IR, Raman. By comparison with similar experiments performed on Hg-based and other cuprate superconductors with lower Tc, a contribution to a better understanding of the mechanism of high-temperature superconductivity will be achieved. Program(-y) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Temat(-y) 15 - Condensed Matter Physics Zaproszenie do składania wniosków Data not available System finansowania Data not available Koordynator Forschungszentrum Karlsruhe GmbH Wkład UE Brak danych Adres 76021 Karlsruhe Niemcy Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (3) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko CEA - Commissariat à l'Energie Atomique Francja Wkład UE Brak danych Adres 91191 Gif-sur-Yvette Zobacz na mapie Koszt całkowity Brak danych Russian Academy of Sciences Rosja Wkład UE Brak danych Adres 194021 St. Petersburg Zobacz na mapie Koszt całkowity Brak danych St. Petersburg State University Rosja Wkład UE Brak danych Adres 199034 St. Petersburg Zobacz na mapie Koszt całkowity Brak danych
