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Growth temperature dependent magnetic properties of Fe film on BaTiO3

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Abstract
We report on the growth temperature effect on magnetic coercivity (HC) and saturation magnetization (MS) of epitaxial Fe films grown on BaTiO3 (BTO). A tensile strain is observed in Fe films grown on tetragonal BTO below the growth temperature of 120 °C, whereas a compressive strain is induced in Fe films grown on cubic BTO above the growth temperature of 120 °C. Combining the lattice mismatch compressive strain and tensile thermal strain, the strongest tensile strain in Fe30 and the compressive strain in Fe400 are opposite trend to the expectation, which may be due to the FeOx interface layer with larger lattice constant. The HC grew from 14.6 to 66.6 Oe as the growth temperature increased from 30 to 400 °C, while the MS reduced from 2129 to 1244 emu/cm3.
Author(s)
Growth temperature dependent magnetic properties of Fe film on BaTiO3
Issued Date
2023
Thi Toan Tran
Van Quang Nguyen
Sunglae Cho
Type
Article
Keyword
Materials sciencePhysical sciencesPhysicsTechnology
DOI
10.1016/j.jmmm.2023.170705
URI
https://oak.ulsan.ac.kr/handle/2021.oak/17229
Publisher
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Language
영어
ISSN
0304-8853
Citation Volume
578
Citation Number
1
Citation Start Page
170705
Appears in Collections:
Natural Science > Physics
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