Dash, Umasankar Acharya, Susant Kumar Cho, Seong Won Lee, Suyoun Lee, Kyoungjun Chae, Seung Chul Cho, Myung Rae Jung, Chang Uk 2024-01-20T00:03:21Z 2024-01-20T00:03:21Z 2021-09-03 2017-11-15 0925-8388 https://pubs.kist.re.kr/handle/201004/122064 In this work, the magnetotransport properties of epitaxial Sr1-xLaxRu1-xFexO3 (x = 0.05, 0.10, 0.20, and 0.30) thin films grown by pulsed laser deposition on SrTiO3 (001) substrates were investigated. Compared to doping Fe into the Ru4+ site of SrRuO3, doping LaFeO3 into SrRuO3 resulted in an increase in the zero-field resistivity. A larger zero-field resistivity value in magnetic perovskite oxide is, in many cases, favorable for obtaining high magnetoresistance. The films (0.0 <= x <= 0.10) showed metallic behavior and ferromagnetic ordering, although the resistivity increased and the ferromagnetic transition temperature T-C decreased with an increase in x. The thin film with x = 0.20 displayed a clear metal-toinsulator phase transition at low temperature and also displayed a well-defined resistivity minimum. This upturn in the resistivity curve is associated with the large electron-electron interaction present in the material. The magnetoresistance values increased as x increased, and we observed a large negative magnetoresistance (MR = -35%) for the thin film with x = 0.30. The observed high MR values are associated with spin fluctuation of the mobile electronic carriers in the material. (C) 2017 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA FERROMAGNET SRRUO3 Large magnetoresistance in LaFeO3-substituted SrRuO3 epitaxial thin films Article 10.1016/j.jallcom.2017.07.043 1 JOURNAL OF ALLOYS AND COMPOUNDS, v.724, pp.549 - 554 JOURNAL OF ALLOYS AND COMPOUNDS 724 549 554 scie scopus 000407848400068 2-s2.0-85022004388 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Chemistry Materials Science Metallurgy & Metallurgical Engineering Article FERROMAGNET SRRUO3 SrRuO3 LaFeO3 Oxide thin film Magnetoresistance