Probing the High-Tc superconducting state with single electron tunneling.
Alexander Ya. Tzalenchuk, Department of Physics, Chalmers University of Technology, S-412 96 Gothenburg, Sweden, Phone: +46-31-772-3665, Fax: +46-31-772 34 71, e-mail: f4ast@fy.chalmers.se, WWW: http://fy.chalmers.se/~f4ast
and A.V.Shubnikov Institute of Crystallography RAS, 117421 Moscow, Russia
We shall present an approach to determine important properties of the superconducting condensate using the methods of single-electron tunneling (SET). Placing an island of an HTS material in a SET device allows to study the very complicated system by fine-tuning the number of electrons in it.
We have fabricated a Coulomb blockade electrometer consisting of an ultrasmall YBa2Cu3O7-