Unsaturated magnetoconductance of epitaxial La0.7Sr0.3MnO3 thin films in pulsed magnetic fields up to 60 T

Unsaturated magnetoconductance of epitaxial La0.7Sr0.3MnO3 thin films in pulsed magnetic fields up to 60 T

We report on the temperature and field dependence of resistance of La0.7Sr0.3MnO3 thin films over a wide temperature range and in pulsed magnetic fields up to 60 T. The epitaxial La0.7Sr0.3MnO3 thin films were deposited by laser molecular beam epitaxy. High magnetic field magnetoresistance curves we...

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Main Authors: Wei Niu, Xuefeng Wang, Ming Gao, Zhengcai Xia, Jun Du, Yuefeng Nie, Fengqi Song, Yongbing Xu, Rong Zhang
Format: Article
Language:English
Published: AIP Publishing LLC 2017-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4972853
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spelling doaj-d74ef678b76d48b3b7b38747edc190a02020-11-25T01:03:32ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175056404056404-510.1063/1.4972853013791ADVUnsaturated magnetoconductance of epitaxial La0.7Sr0.3MnO3 thin films in pulsed magnetic fields up to 60 TWei Niu0Xuefeng Wang1Ming Gao2Zhengcai Xia3Jun Du4Yuefeng Nie5Fengqi Song6Yongbing Xu7Rong Zhang8National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, ChinaWuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, ChinaNational Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, ChinaCollege of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, ChinaWe report on the temperature and field dependence of resistance of La0.7Sr0.3MnO3 thin films over a wide temperature range and in pulsed magnetic fields up to 60 T. The epitaxial La0.7Sr0.3MnO3 thin films were deposited by laser molecular beam epitaxy. High magnetic field magnetoresistance curves were fitted by the Brillouin function, which indicated the existence of magnetically polarized regions and the underlying hopping mechanism. The unsaturated magnetoconductance was the most striking finding observed in pulsed magnetic fields up to 60 T. These observations can deepen the fundamental understanding of the colossal magnetoresistance in manganites with strong correlation of transport properties and magnetic ordering.http://dx.doi.org/10.1063/1.4972853
collection DOAJ
language English
format Article
sources DOAJ
author Wei Niu
Xuefeng Wang
Ming Gao
Zhengcai Xia
Jun Du
Yuefeng Nie
Fengqi Song
Yongbing Xu
Rong Zhang
spellingShingle Wei Niu
Xuefeng Wang
Ming Gao
Zhengcai Xia
Jun Du
Yuefeng Nie
Fengqi Song
Yongbing Xu
Rong Zhang
Unsaturated magnetoconductance of epitaxial La0.7Sr0.3MnO3 thin films in pulsed magnetic fields up to 60 T
AIP Advances
author_facet Wei Niu
Xuefeng Wang
Ming Gao
Zhengcai Xia
Jun Du
Yuefeng Nie
Fengqi Song
Yongbing Xu
Rong Zhang
author_sort Wei Niu
title Unsaturated magnetoconductance of epitaxial La0.7Sr0.3MnO3 thin films in pulsed magnetic fields up to 60 T
title_short Unsaturated magnetoconductance of epitaxial La0.7Sr0.3MnO3 thin films in pulsed magnetic fields up to 60 T
title_full Unsaturated magnetoconductance of epitaxial La0.7Sr0.3MnO3 thin films in pulsed magnetic fields up to 60 T
title_fullStr Unsaturated magnetoconductance of epitaxial La0.7Sr0.3MnO3 thin films in pulsed magnetic fields up to 60 T
title_full_unstemmed Unsaturated magnetoconductance of epitaxial La0.7Sr0.3MnO3 thin films in pulsed magnetic fields up to 60 T
title_sort unsaturated magnetoconductance of epitaxial la0.7sr0.3mno3 thin films in pulsed magnetic fields up to 60 t
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2017-05-01
description We report on the temperature and field dependence of resistance of La0.7Sr0.3MnO3 thin films over a wide temperature range and in pulsed magnetic fields up to 60 T. The epitaxial La0.7Sr0.3MnO3 thin films were deposited by laser molecular beam epitaxy. High magnetic field magnetoresistance curves were fitted by the Brillouin function, which indicated the existence of magnetically polarized regions and the underlying hopping mechanism. The unsaturated magnetoconductance was the most striking finding observed in pulsed magnetic fields up to 60 T. These observations can deepen the fundamental understanding of the colossal magnetoresistance in manganites with strong correlation of transport properties and magnetic ordering.
url http://dx.doi.org/10.1063/1.4972853
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