Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 52, Issue 16, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/ab03be
Keywords
caloric materials; magnetism; thin film
Categories
Funding
- SERB-DST, Government of India [SB/OS/PDF-162/2016-17]
- Leverhulme Trust [RPG-2015-017]
- EPSRC [EP/L011700/1, EP/N004272/1, EP/M000524/1]
- EU [H2020-MSCA-IF-2016 745886 MuStMAM]
- EPSRC [EP/N004272/1, EP/L011700/1, EP/P027032/1, EP/M000524/1] Funding Source: UKRI
Ask authors/readers for more resources
The magnetic control of strain-induced giant caloric properties of epitaxial La0.67Sr0.33MnO3 (LSMO) thin films grown on (001) BaTiO3 (BTO) single crystal substrates is investigated. Arising from the crystallographic structural transformation of the BTO substrate during its 3-phase transitions, there is a drastic change of 3D film-lattice strain, which affects the local magnetic anisotropy of the LSMO at the interface and changes the entropy of the film. The thermal hysteresis observed in temperature dependent resistivity measurement can be manipulated by applying a magnetic field. Detailed transport and magnetic studies in different crystal orientations reveal the origin of such field-dependent magnetocaloric properties induced by the different phase transitions of the BTO substrate. Finally, a large entropy change of 1.03-1.95 J . Kg(-1) . K-1 . T-1 was obtained at the monoclinic-tetragonal (M-T) transition at 283 K which compares to <1 J . Kg(-1) . K-1 . T-1 for previously reported films.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available