The effect of chemical distribution on the magnetocaloric effect: A case study in second-order phase transition manganites
authors Amaral, JS; Tavares, PB; Reis, MS; Araujo, JP; Mendonca, TM; Amaral, VS; Vieira, JM
nationality International
journal JOURNAL OF NON-CRYSTALLINE SOLIDS
author keywords Magnetic properties; Modeling and simulation; Sintering; Thermodynamics
keywords MANGANESE OXIDE PEROVSKITES; CATION DISORDER
abstract Ferromagnetic manganites of general formula ABMnO(3) (where A is a trivalent rare-earth ion and B is a divalent dopant) are candidates for magnetic cooling applications, since they can present either second-or first-order magnetic phase transitions, and the perovskite structure allows for substantial chemical substitution and tuning of the magnetocaloric properties. The consequent chemical distribution from substitution affects the magnetic and magnetocaloric properties of the compound. The change of relative cooling power with chemical disorder is discussed by the use of the molecular mean-field model. We present experimental results of the ferromagnetic, second-order phase transition La(0.70-x)(Er, Eu)(x)Sr(0.30)MnO(3) system. (c) 2008 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 0022-3093
year published 2008
volume 354
issue 47-51
beginning page 5301
ending page 5303
digital object identifier (doi) 10.1016/j.jnoncrysol.2008.05.078
web of science category Materials Science, Ceramics; Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000261656600073
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 2.929
5 year journal impact factor 2.653
category normalized journal impact factor percentile 71.855
dimensions (citation analysis):
altmetrics (social interaction):



 


Apoio

1suponsers_list_ciceco.jpg