We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Giant and reversible extrinsic magnetocaloric effects in La<sub>0.7</sub>Ca<sub>0.3</sub>MnO<sub>3</sub> films due to strain.
- Authors
Moya, X.; Hueso, L. E.; Maccherozzi, F.; Tovstolytkin, A. I.; Podyalovskii, D. I.; Ducati, C.; Phillips, L. C.; Ghidini, M.; Hovorka, O.; Berger, A.; Vickers, M. E.; Defay, E.; Dhesi, S. S.; Mathur, N. D.
- Abstract
Large thermal changes driven by a magnetic field have been proposed for environmentally friendly energy-efficient refrigeration, but only a few materials that suffer hysteresis show these giant magnetocaloric effects. Here we create giant and reversible extrinsic magnetocaloric effects in epitaxial films of the ferromagnetic manganite La0.7Ca0.3MnO3 using strain-mediated feedback from BaTiO3 substrates near a first-order structural phase transition. Our findings should inspire the discovery of giant magnetocaloric effects in a wide range of magnetic materials, and the parallel development of nanostructured bulk samples for practical applications.
- Subjects
MAGNETIC fields; REFRIGERATION &; refrigerating machinery; HYSTERESIS; EPITAXY; BARIUM titanate films; NANOSTRUCTURED materials
- Publication
Nature Materials, 2013, Vol 12, Issue 1, p52
- ISSN
1476-1122
- Publication type
Article
- DOI
10.1038/nmat3463