Loading [MathJax]/jax/output/HTML-CSS/jax.js
Publication
Title
Relation between structure, charge ordering and magnetotransport properties in manganites
Author
Schuddinck, W.
Van Tendeloo, G.
Barnabé, A.
Hervieu, M.
Raveau, B.
Abstract
The relationships between incommensurability, charge ordering and magnetotransport properties in Nd0.5Ca0.5Mn1-xCrxO3 manganites have been studied by electron diffraction and lattice imaging versus temperature with 0.02 less than or equal to x less than or equal to 0.07. All compositions show an incommensurate superstructure over the whole temperature domain, despite the fact that they are ferromagnetic and conductive below 140 K, The q-vector (1/2 - delta)a* decreases with increasing temperature for all compositions x. For a given temperature q also decreases with x. Lattice images obtained at low temperature give a clear view of the characteristics of the incommensurate structure. They also provide a better understanding of the charge ordering process. The low-temperature form of the Cr-doped manganites is not a perfectly doubled cell [[2a(p)root 2 x 2a(p) x a(p)root 2]], but defects inducing a tripled cell occur pseudo-periodically. (C) 2000 Elsevier Science B.V. All rights reserved.
Language
English
Source (journal)
Journal of magnetism and magnetic materials. - Amsterdam
Source (book)
Symposium G Material Physics Issues and Applications of Magnetic Oxides, at the E-MRS Spring Meeting, JUN 01-04, 1999, Strasbourg, France
Publication
Amsterdam
:
2000
ISSN
0304-8853
DOI
10.1016/S0304-8853(99)00720-9
Volume/pages
211 :1-3 (2000) , p. 105-110
ISI
000085772100017
Full text (Publisher's DOI)
https://doi.org/10.1016/S0304-8853(99)00720-9
Full text (publisher's version - intranet only)
https://repository.uantwerpen.be/docman/iruaauth/f3d7c5/68d4232.pdf
UAntwerpen
Faculty/Department
Faculty of Sciences. Physics
Publication type
A1 Journal article
Subject
Physics
Affiliation
Publications with a UAntwerp address
External links
Web of Science
View record in Web of Science®
View citing articles in Web of Science®
View Related Records® in Web of Science®
Record
Identifier
c:irua:104256
Creation
03.01.2013
Last edited
14.11.2024
To cite this reference
https://hdl.handle.net/10067/1042560151162165141
»
»