Strain modulated large magnetocaloric effect in Sm0.55Sr0.45MnO3 epitaxial films

Epitaxial Sm0.55Sr0.45MnO3 thin films were deposited on LAO (001), LSAT (001), and STO (001) single crystalline substrates by pulsed laser deposition technique to investigate the correlation between the substrate induced film lattice strain and magnetocaloric effect (MCE). The film on LAO substrate...

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Bibliographic Details
Published in:Applied physics letters 2015-01, Vol.106 (2)
Main Authors: Giri, S. K., Dasgupta, Papri, Poddar, A., Sahoo, R. C., Paladhi, D., Nath, T. K.
Format: Article
Language:English
Subjects:
Applied physics
Bifurcations
Compressive properties
Cooling
Epitaxy
Ferromagnetic materials
Lattice strain
Magnetic fields
Magnetism
Magnetization
Magnetization curves
Phase transitions
Pulsed laser deposition
Pulsed lasers
Substrates
Temperature measurement
Tensile strain
Thin films
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Summary:Epitaxial Sm0.55Sr0.45MnO3 thin films were deposited on LAO (001), LSAT (001), and STO (001) single crystalline substrates by pulsed laser deposition technique to investigate the correlation between the substrate induced film lattice strain and magnetocaloric effect (MCE). The film on LAO substrate (S_LAO), which is under compressive strain, undergoes ferromagnetic → paramagnetic transition at TC ∼ 165 K. The films on STO (S_STO) and LSAT (S_LSAT) substrates are under tensile strain and have TC ∼ 120 K and 130 K, respectively. At T 
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4906087