For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Effect of Sintering Temperature on Structural and Electrical Transport Properties of (La0.7Ca0.3MnO3)0.97/(ZnO)0.03 Composite
p.202
Effect of Electrolytes Variation on the Formation of Oxide Layers of Al7075 Alloys by Electrolytic Plasma Processing
p.209
Effect of Nitrogen Electrolytes on Al2021 Alloy by Electrolytic Plasma Processing
p.213
Facile Synthesis of ZnO Nanoparticles Using Mechanochemical Route and their Structural, Morphological and Thermal Properties
p.220
Study of Magnetic Transition and Magnetocaloric Effect in La1-xSrxMnO3 (0.20≤ x ≤0.35) Compounds
p.225
Characterization of Heat-Resistant Geocement Based on Potassium Silica Solution
p.230
The Regulation of Cellular Adhesion Geometry on Apoptosis of Mesenchymal Stem Cell
p.235
Experimental Investigation of Three-Phase Foam Sealing Material for Fractured Borehole
p.239
Microhardness Enhancement of Steel Weldments Using Mechanical Oscillation of the Welding Joint
p.244

Study of Magnetic Transition and Magnetocaloric Effect in La1-xSrxMnO3 (0.20≤ x ≤0.35) Compounds

Article Preview

Abstract:

We report the magnetic transition and large magnetic entropy change in Sr doped lanthanum manganites. Polycrystalline La1-xSrxMnO3 (0.20 x 0.35) samples were prepared using the conventional solid-state reaction method. The results of X-ray diffraction indicates perovskite phase without any impurity. The magnetic study has revealed that the Curie temperature is influenced by Sr-concentration. The doping of Sr at La site affects the Mn-O bond length and Mn-O-Mn bond angle due to the difference in their ionic radii, consequently, the Curie temperature changed. A large magnetic entropy change has been observed for La0.8Sr0.2MnO3 sample, the value of the maximum entropy change (SMmax) increases from 1.42 to 2.74 J/kgK as magnetic field increases from 1 to 2.5 T. This investigation suggests that La1-xSrxMnO3 can be used as a potential magnetic refrigeration material.

You might also be interested in these eBooks
Applied Mechanics, Materials and Manufacturing View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 378)

Pages:

225-229

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.378.225

Citation:

Cite this paper

Online since:

August 2013

Authors:

Yeong Seung Jeong, M.S. Anwar, Faheem Ahmed, Seung Rok Lee, Bon Heun Koo

Keywords:

Magnetization, Magnetocaloric Effect, Manganite, Refrigeration

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] R. N. Mahato, K. Sethupathi, V. Sankaranarayanan, R. Nirmala: J. Appl. Physics Vol. 107 (2010), p. 09A943.

Google Scholar

[2] V. S. Kumar, R. Mahendiran: J. Appl. Phys. Vol. 109 (2011), p.023903.

Google Scholar

[3] M. S. Anwar, S. Kumar, F. Ahmed, B. H. Koo: J. Electroceramics Vol. 30 (2012), p.46.

Google Scholar

[4] M. S. Anwar, S. Kumar, F. Ahmed, N. Arshi, B. H. Koo: J. Nanosci. Nanotech. Vol. 12 (2012), p.5523.

Google Scholar

[5] M. S. Anwar, S. Kumar, F. Ahmed, N. Arshi, B. H. Koo: Mater. Res. Bulletin Vol. 47 (2012), p.2977.

Google Scholar

[6] M. S. Anwar, S. Kumar, F. Ahmed, N. Arshi, B. H. Koo: J. Korean Phys. Soc. Vol. 60 (2012), p.1587.

Google Scholar

[7] P. Sarkar, P. Mandal, and P. Choudhury: Appl. Phys. Lett. Vol. 92 (2008), p.182506.

Google Scholar

[8] R.V. Helmolt, J. Wecker, B. Holzapfel, L. Schultz, K. Samwer: Phys. Rev. Lett. Vol. 71 (1993), P. 2331.

Google Scholar

[9] Y. Samancıoglu, A. Coskun : J. Alloys Compd. Vol. 507 (2010), p.385.

Google Scholar

[10] S. K. Banerjee: Phys. Lett. Vol. 12 (1964), p.16.

Google Scholar

[11] V. S. Kumar, R. Mahendiran: J. Appl. Phys. Vol. 109 (2011), p.023903.

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.