Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 123, Issue 23, Pages 14842-14848Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.9b03178
Keywords
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Funding
- basic scientific research projects of colleges and universities of Liaoning Province of China [LZGD2017005]
- key research and development plan of Liaoning Province [2017104002]
- major project of Industrial Technology Research Institute of Liaoning Colleges and Universities [201824010]
- National Basic Research Program [2017YFA0206302]
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Strain effect has great influence on the magnetic properties of manganite films. Here, we report a new phenomenon in which the biaxial tensile strain can induce the formation of the cluster glass state in LaMnO3 (LMO) films. By comparing the properties of the LMO films grown on the LaAlO3, SrTiO3, and MgO substrates, the mechanism of the formation of the cluster glass state in LMO films was investigated in depth. We demonstrate that the formation of the cluster glass state in LMO films is due to the biaxial tensile strain, which leads to the competition between ferromagnetic and antiferromagnetic interactions by changing the percentage of Mn3+ and Mn4+ ions in the films. Our work demonstrates that strain is an important factor in the formation of the cluster glass state in manganite films.
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