Strain dependent magnetocaloric effect in La0.67Sr0.33MnO3 thin-films

Strain dependent magnetocaloric effect in La0.67Sr0.33MnO3 thin-films

The strain dependent magnetocaloric properties of La0.67Sr0.33MnO3 thin films deposited on three different substrates (001) LaAlO3 (LAO), (001) SrTiO3 (STO), and (001) La0.3Sr0.7Al0.65Ta0.35O9 (LSAT) have been investigated under low magnetic fields and around magnetic phase transition temperatures....

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Bibliographic Details
Main Authors: Kumar, V. Suresh, Chukka, Rami, Chen, Zuhuang, Yang, Ping, Chen, Lang
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/99453
http://hdl.handle.net/10220/10952
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Institution: Nanyang Technological University
Language: English
Description
Summary:The strain dependent magnetocaloric properties of La0.67Sr0.33MnO3 thin films deposited on three different substrates (001) LaAlO3 (LAO), (001) SrTiO3 (STO), and (001) La0.3Sr0.7Al0.65Ta0.35O9 (LSAT) have been investigated under low magnetic fields and around magnetic phase transition temperatures. Compared to bulk samples, we observe a remarkable decrease in the ferromagnetic transition temperature that is close to room temperature, closely matched isothermal magnetic entropy change and relative cooling power values in tensile strained La0.67Sr0.33MnO3 films. The epitaxial strain plays a significant role in tuning the peak position of isothermal magnetic entropy change towards room temperature with improved cooling capacity.

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