Stability studies of Hg implanted YBa2Cu3O6+x

• Type: Article in International Scientific Journal
• Date: 1999

Authors

Araújo, João Pedro (Author) Other; Correia, J. G. (Author) Other; Wahl, Ulrich (Author) Other; Marques, José G. (Author) Other; Alves, Eduardo J. (Author) Other; Amaral, V. S. (Author) Other; Lourenço, A. A C S (Author) Other; Galindo, V. (Author) Other; Von Papen, Tilmann (Author) Other; Sénateur, Jean Pierre (Author) Other; Weiss., François (Author) Other; Vantomme, André (Author) Other; Langouche, Guido (Author) Other; Melo, A. A. (Author) Other; Da Silva, M. F. (Author) Other; Soares, José Carvalho Carvalho (Author) Other; Sousa, João Bessa (Author) FCUP

Journal

Title: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

Vol. 147

Pages: 244-248

ISSN: 0168-583X

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 3 Citations

Other information

Authenticus ID: P-001-628

DOI: 10.1016/s0168-583x(98)00544-8

Abstract (EN): High quality YBa2Cu3O6+x (YBCO) superconducting thin films were implanted with the radioactive Hg-197m (T-1/2 = 24 h) isotope to low fluences of 10(13) atoms/cm(2) and 60 keV energy. The lattice location and stability of the implanted Hg were studied combining the Perturbed Angular Correlation (PAC) and Emission Channeling (EC) techniques. We show that Hg can be introduced into the YBCO lattice by ion implantation into a unique regular site. The EC data show that Hg is located on a highly symmetric site on the YBCO lattice, while the PAC data suggests that Hg occupies the Cu(1) site. Annealing studies were performed under vacuum and O-2 atmosphere and show that Hg starts to diffuse only above 653 K,

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5