Affordable Access

Publisher Website

Charge ordering characteristics in Y0.5Ca0.5MnO3manganite

Authors
Journal
Physics Letters A
0375-9601
Publisher
Elsevier
Publication Date
Volume
370
Identifiers
DOI: 10.1016/j.physleta.2007.06.006
Keywords
  • Condensed Matter
Disciplines
  • Physics

Abstract

Abstract The charge ordering characteristics in Y 0.5Ca 0.5MnO 3 manganite, prepared by sol–gel process, have been investigated experimentally. It is found that the superlattice diffractions appear in the electron diffraction patterns recorded at low temperatures, while only basic Brag diffraction spots can be observed when temperature is higher than 300 K. This provides direct evidence for the existence of charge ordering in Y 0.5Ca 0.5MnO 3. The magnetization and specific heat measurements indicate the charge ordering temperature of Y 0.5Ca 0.5MnO 3 is 290 K, around which both the magnetization and specific heat reveal anomalous behaviors. We also observed that the Mn O bond length changed remarkably and the effective number of carriers reduced prominently with decreasing temperature around charge ordering temperature through transform infrared spectra measurements.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Magnetic properties and electron spin resonance of...

on Chemical Physics Letters Jan 01, 2005

Strain effects in charge-ordered Pr0.5Ca0.5MnO3man...

on Journal of Physics and Chemist... Jan 01, 2003

Frequency effects on charge ordering in Y0.5Ca0.5M...

on Journal of Magnetism and Magne...

Structural phase transition in Pr0.55Ca0.45MnO3and...

on Materials Science and Engineer... Jan 01, 2008
More articles like this..