Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1596608 | Solid State Communications | 2006 | 5 Pages |
Abstract
Some new members of a ruthenocuprate(2212) series have been synthesized by Mn substitution for Ru in Gd1.4Ce0.6Sr2RuCu2O10. Characterization by x-ray diffraction (XRD) phase analysis has been carried out. Changes in structural features on substitution, including a significant change in lattice parameter for a very low substitution level, have been observed. Four-probe resistivity studies indicate the coexistence of superconductivity and magnetism for the pristine compound and a semiconductor-like upturn in resistivity and the absence of superconductivity even for very low levels of Mn substitution. AC susceptibility measurements show a progressive suppression of the magnetic transition temperature as well as a smearing of the magnetic transition as a function of Mn substitution. Possible reasons for the absence of superconductivity have been discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
S. Kalavathi, J. Janaki, T.N. Sairam, Awadhesh Mani, R. Rawat, V. Sankara Sastry,