Room temperature magnetic shape-memory effect in strontium-doped lanthanum cobaltite single crystals
In this study, we investigated the temperature dependence of magnetostriction in the twinned rhombohedral perovskite structure-based lanthanum cobaltite La0.8Sr0.2CoO3. The magnetostriction measured in a magnetic field applied along the pseudocubic [111]c axis showed large hysteresis and residual st...
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doaj-4a0cf385cc114cb0b75ddd307a05350d2020-11-25T03:44:57ZengAIP Publishing LLCAIP Advances2158-32262020-09-01109095217095217-610.1063/5.0021751Room temperature magnetic shape-memory effect in strontium-doped lanthanum cobaltite single crystalsA. Yokosuka0H. Kumagai1M. Fukuda2K. Ando3Y. Hara4K. Sato5Department of Industrial Engineering, Ibaraki National College of Technology, 866 Nakane, Hitachinaka 312-8508, JapanDepartment of Industrial Engineering, Ibaraki National College of Technology, 866 Nakane, Hitachinaka 312-8508, JapanDepartment of Industrial Engineering, Ibaraki National College of Technology, 866 Nakane, Hitachinaka 312-8508, JapanDepartment of Industrial Engineering, Ibaraki National College of Technology, 866 Nakane, Hitachinaka 312-8508, JapanDepartment of Industrial Engineering, Ibaraki National College of Technology, 866 Nakane, Hitachinaka 312-8508, JapanDepartment of Industrial Engineering, Ibaraki National College of Technology, 866 Nakane, Hitachinaka 312-8508, JapanIn this study, we investigated the temperature dependence of magnetostriction in the twinned rhombohedral perovskite structure-based lanthanum cobaltite La0.8Sr0.2CoO3. The magnetostriction measured in a magnetic field applied along the pseudocubic [111]c axis showed large hysteresis and residual strains. The residual strains are caused by the twin deformation, which we observed using x-ray diffraction. We found that the critical magnetic field for the twin deformation of La0.8Sr0.2CoO3 increases with temperature. The twin deformation occurs in a sufficiently strong magnetic field (∼6 T), even in the paramagnetic region at room temperature. We also confirmed that the temperature dependence of the critical magnetic field for twin deformation is related to the temperature dependence of the magnetization.http://dx.doi.org/10.1063/5.0021751 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A. Yokosuka H. Kumagai M. Fukuda K. Ando Y. Hara K. Sato |
spellingShingle |
A. Yokosuka H. Kumagai M. Fukuda K. Ando Y. Hara K. Sato Room temperature magnetic shape-memory effect in strontium-doped lanthanum cobaltite single crystals AIP Advances |
author_facet |
A. Yokosuka H. Kumagai M. Fukuda K. Ando Y. Hara K. Sato |
author_sort |
A. Yokosuka |
title |
Room temperature magnetic shape-memory effect in strontium-doped lanthanum cobaltite single crystals |
title_short |
Room temperature magnetic shape-memory effect in strontium-doped lanthanum cobaltite single crystals |
title_full |
Room temperature magnetic shape-memory effect in strontium-doped lanthanum cobaltite single crystals |
title_fullStr |
Room temperature magnetic shape-memory effect in strontium-doped lanthanum cobaltite single crystals |
title_full_unstemmed |
Room temperature magnetic shape-memory effect in strontium-doped lanthanum cobaltite single crystals |
title_sort |
room temperature magnetic shape-memory effect in strontium-doped lanthanum cobaltite single crystals |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2020-09-01 |
description |
In this study, we investigated the temperature dependence of magnetostriction in the twinned rhombohedral perovskite structure-based lanthanum cobaltite La0.8Sr0.2CoO3. The magnetostriction measured in a magnetic field applied along the pseudocubic [111]c axis showed large hysteresis and residual strains. The residual strains are caused by the twin deformation, which we observed using x-ray diffraction. We found that the critical magnetic field for the twin deformation of La0.8Sr0.2CoO3 increases with temperature. The twin deformation occurs in a sufficiently strong magnetic field (∼6 T), even in the paramagnetic region at room temperature. We also confirmed that the temperature dependence of the critical magnetic field for twin deformation is related to the temperature dependence of the magnetization. |
url |
http://dx.doi.org/10.1063/5.0021751 |
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