Eur. Phys. J. B 26, 51-55 (2002)
https://doi.org/10.1140/epjb/e20020065

Crystal structure and morphology of the NdSr₂RuCu₂O_y compound

¹ Unità I.N.F.M. di Salerno, Dipartimento di Fisica “E.R. Caianiello", Università di Salerno, 84081 Baronissi (Salerno), Italy
² Dipartimento di Scienze e Tecnologie Avanzate, Università del Piemonte Orientale “A. Avogadro", 15100 Alessandria, Italy
³ Dipartimento di Chimica I.F.M., Università di Torino, 10125 Torino, Italy
⁴ Dipartimento di Chimica, Università di Salerno, 84081 Baronissi (Salerno), Italy
⁵ NSLS, Brookhaven National Laboratory, Upton, NY 11973, USA & Dept. of Physics and Astronomy, State University of New York, Stony Brook, NY 11974-3800, USA

Corresponding author: ^a canio@sa.infn.it

Received: 15 November 2001
Published online: 15 March 2002

Abstract

We report the preparation and the structural and morphological characterization of the perovskite compound NdSr₂RuCu₂O_y. The crystal structure of this material has been determined by a combined high-resolution electron microscopy, selected area electron diffraction and high-resolution powder diffraction study. The morphology of the samples has been monitored by a scanning electron microscope equipped with an energy dispersive spectrometer attachment by which the microanalysis of the crystallites has been also performed. Finally, dc magnetic susceptibility measurements show that this compound behaves like an enhanced paramagnetic metal with evidence of neither magnetic order and neither superconducting one.