All Issue

2016 Vol.26, Issue 11 Preview Page
Impact of Ba Substitution on the Magnetocaloric Effect in La1-xBaxMnO3 Manganites
Imad Hussain
,
M. S. Anwar
,
Eunji Kim
,
Bon Heun Koo
,
Chan Gyu Lee†
School of Materials Science and Engineering, Changwon National University, Changwon 51140, Republic of Korea
†Corresponding author : chglee@changwon.ac.kr (C. G. Lee, Changwon Nat’l Univ.)
November 2016. pp. 623-627
PDF XML Citation
Abstract

La1-xBaxMnO3 (x = 0.30, 0.35 and 0.40) samples have been prepared by solid-state reaction method. The X-ray diffraction (XRD) study showed that all the samples crystallized in a rhombohedral structure with an R-3c space group. Variation of the magnetization as a function of the temperature and applied magnetic field was carried out. All the samples revealed ferromagnetic to paramagnetic (FM-PM) phase transition at the Curie temperature TC ~ 342 K. The magnetic entropy change was also studied through examination of the measured magnetic isotherms M(H, T) near TC. The magnetocaloric effect was calculated in terms of the isothermal magnetic entropy change. The maximum entropy change reaches a value of 1.192 J/ kgK under a magnetic field change of 2.5T for the La0.6Ba0.4MnO3 composition. The relative cooling power (RCP) is 79.31 J/kg for the same applied magnetic field.

Keywords
magnetocaloric effect
magnetization
magnetic entropy
relative cooling power
References
1
KA Gschneidner Jr, VK Pecharsky and AO Tsokol, Rep. Prog. Phys, 68; 1479 (2005)
10.1088/0034-4885/68/6/R04
2
MS Anwar and BH Koo, Elecron. Mater. Lett, 11; 614 (2015)
10.1007/s13391-015-4461-y
3
I Hussain, MS Anwar, JW Kim, KC Chung and BH Koo, Ceram. Int, 42; 13098 (2016)
10.1016/j.ceramint.2016.05.094
4
BF Yu, Q Guo, B Zhang, XZ Meng and Z Chen, Int. J. Refrig, 26; 622 (2003)
10.1016/S0140-7007(03)00048-3
5
MH Phan, SC Yu and J Magn, Magn. Mater, 308; 325 (2007)
10.1016/j.jmmm.2006.07.025
6
R Caballero-Flores, V Franco, A Conde, KE Knipling and MA Willard, Appl. Phys. Lett, 98; 102501 (2011)
10.1063/1.3560445
7
KA Gschneidner Jr and VK Pecharsky, Annu. Rev. Mater. Sci, 30; 387 (2000)
10.1146/annurev.matsci.30.1.387
8
Y Tokura, Rep. Prog. Phys, 69; 797 (2006)
10.1088/0034-4885/69/3/R06
9
JB Goodenough, Rep. Prog. Phys, 67; 1915 (2004)
10.1088/0034-4885/67/11/R01
10
J Paul Attfield, Chem. Mater, 10; 3239 (1998)
11
AJ Millis, Nature, 392; 147 (1998)
10.1038/32348
12
VK Pecharsky and KA Gschneidner Jr, Phys. Rev. Lett, 78; 4494 (1997)
10.1103/PhysRevLett.78.4494
13
H Wada and Y Tanabe, Appl. Phys. Lett, 79; 3302 (2001)
10.1063/1.1419048
14
Q Tegus, E Bruck, KH Buschow and FR de Boer, Nature, 415; 150 (2002)
10.1038/415150a1805828
15
FW Wang, XX Zhang and FX Hu, Appl. Phys. Lett, 77; 1360 (2000)
10.1063/1.1290389
16
MH Phan and SC Yu, J. Magn. Magn. Mater, 308; 325 (2007)
10.1016/j.jmmm.2006.07.025
17
BK Banerjee, Phys. Lett, 12; 16 (1964)
10.1016/0031-9163(64)91158-8
18
I Hussain, MS Anwar, SR Lee and BH Koo, J. Supercond. Nov. Magn, 28; 3323 (2015)
10.1007/s10948-015-3157-8
19
ZM Wang, G Ni, QY Xu, H Sang and YM Du, J. Appl. Phys, 90; 5689 (2001)
10.1063/1.1415055
20
A Rostamnejadi, M Venkatesan, P Kameli, H Salamati and JMD Coey, J. Magn. Magn. Mater, 323; 2214 (2011)
10.1016/j.jmmm.2011.03.036
Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 26
  • No :11
  • Pages :623-627
  • Received Date : 2016-06-29
  • Revised Date : 2016-10-10
  • Accepted Date : 2016-10-10
  • DOI :https://doi.org/10.3740/MRSK.2016.26.11.623
Journal Informaiton Korean Journal of Materials Research Korean Journal of Materials Research
Online Submission
  • scopus
  • NRF
  • KOFST
  • crossref crossmark
  • crossref cited-by
  • crosscheck
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close