Title :
Analysis of the Possible Influence of Crystallographic Shear Planes on Magnetic and Superconducting Behavior in RuSr2EuCu2O8
Author :
Cobas, R. ; Pérez, S. Munñoz ; Obradors, X. ; Aguiar, J. Albino
Author_Institution :
Univ. Fed. de Pernambuco, Recife
fDate :
6/1/2007 12:00:00 AM
Abstract :
We present results of High-resolution Transmission Electron Microscopy (HRTEM), and of the electrical and magnetic properties with various magnetic fields applied in bulk sample of EuSr2RuCu2O8 . Our data suggest that crystallographic shear planes observed by transmission electron microscopy could be originating the anomalies observed in the magnetic and electric measurements. These defects constitute a discontinuity in the Ru-O charge reservoir layers forming anti-phase boundaries, with big amounts of Eu between Ru layers locally deficient in O.
Keywords :
electrical conductivity; europium compounds; ferromagnetic materials; magnetic superconductors; magnetic susceptibility; ruthenium compounds; strontium compounds; transmission electron microscopy; HRTEM; Ru-O charge reservoir layers; RuSr2EuCu2O8 - System; antiphase boundaries; crystallographic shear planes; electrical properties; high-resolution transmission electron microscopy; magnetic behavior; magnetic fields; magnetic susceptibility; superconducting ferromagnet; Crystallography; Electric variables measurement; Magnetic analysis; Magnetic field measurement; Magnetic force microscopy; Magnetic properties; Powders; Reservoirs; Superconducting magnets; Transmission electron microscopy; Crystallographic shear planes; superconducting ferromagnet;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.897912
