Near fifty percent sodium substituted lanthanum manganites—A potential magnetic refrigerant for room temperature applications
- Department of Physics, Sultan Qaboos University, PC 123 Muscat, Sultanate of Oman (Oman)
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076 (India)
Nearly half of lanthanum sites in lanthanum manganites were substituted with monovalent ion-sodium and the compound possessed distorted orthorhombic structure. Ferromagnetic ordering at 300 K and the magnetic isotherms at different temperature ranges were analyzed for estimating magnetic entropy variation. Magnetic entropy change of 1.5 J·kg{sup −1}·K{sup −1} was observed near 300 K. An appreciable magnetocaloric effect was also observed for a wide range of temperatures near 300 K for small magnetic field variation. Heat capacity was measured for temperatures lower than 300 K and the adiabatic temperature change increases with increase in temperature with a maximum of 0.62 K at 280 K.
- OSTI ID:
- 22283051
- Journal Information:
- Applied Physics Letters, Vol. 104, Issue 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mixed rare earth oxides derived from monazite sand as an inexpensive precursor material for room temperature magnetic refrigeration applications
Magnetocaloric effect of electron-doped manganite La{sub 0.9}Te{sub 0.1}MnO{sub 3}
Effect of Sodium Doping on Magnetic and Magnetocaloric Properties of La{sub 0.65}Sr{sub 0.35}MnO{sub 3} Manganites
Journal Article
·
Sun Oct 15 00:00:00 EDT 2017
· Materials Research Bulletin
·
OSTI ID:22283051
+1 more
Magnetocaloric effect of electron-doped manganite La{sub 0.9}Te{sub 0.1}MnO{sub 3}
Journal Article
·
Wed Aug 01 00:00:00 EDT 2007
· Journal of Applied Physics
·
OSTI ID:22283051
Effect of Sodium Doping on Magnetic and Magnetocaloric Properties of La{sub 0.65}Sr{sub 0.35}MnO{sub 3} Manganites
Journal Article
·
Thu Feb 15 00:00:00 EST 2018
· Journal of Superconductivity and Novel Magnetism
·
OSTI ID:22283051
+2 more