Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/81903
Title: Unraveling how electronic and spin structures control macroscopic properties of manganite ultra-thin films
Authors: Yin, Xinmao
Majidi, Muhammad Aziz
Chi, Xiao
Ren, Peng
You, Lu
Palina, Natalia
Yu, Xiaojiang
Diao, Caozheng
Schmidt, Daniel
Wang, Baomin
Yang, Ping
Breese, Mark B H
Wang, Junling
Rusydi, Andrivo
Keywords: Jahn-Teller effect
Perovskite manganites
Issue Date: 2015
Source: Yin, X., Majidi, M. A., Chi, X., Ren, P., You, L., Palina, N., et al. (2015). Unraveling how electronic and spin structures control macroscopic properties of manganite ultra-thin films. NPG Asia Materials, 7, e196-.
Series/Report no.: NPG Asia Materials
Abstract: Perovskite manganites exhibit fascinating transport and magnetic properties, essential for fundamental research and applications. With the development of thin film technologies, more exotic properties have been observed in doped-manganites over a wide range of temperature. Unraveling the interplay of spin, charge and orbital degrees of freedom that drives exotic, macroscopic properties is therefore crucial for the understanding of strongly correlated electron systems. Here, using a combination of transport, spectroscopic ellipsometry, X-ray absorption spectroscopy and X-ray magnetic circular dichroism, we observe two concomitant electronic and magnetic phases (insulating paramagnetic phase for T>195 K and insulating canted-ferromagnetic for T<140 K) with an intermediate metal-like state in ultra-thin La0.7Sr0.3MnO3 (LSMO) film on DyScO3 substrate. Surprisingly, the O2p-Mn3d hybridization strength reduces with decreasing temperature, driving the system more insulating and ferromagnetic. The Jahn–Teller effect weakens markedly within the intermediate temperature range, making the system more metal-like. We also apply this comprehensive method to a LSMO film on SrTiO3 substrate for comparison. Our study reveals that the interplay of the O2p-Mn3d hybridization and the dynamic Jahn–Teller splitting controls the macroscopic transport and magnetic properties in ultra-thin manganites.
URI: https://hdl.handle.net/10356/81903
http://hdl.handle.net/10220/39732
ISSN: 1884-4057
DOI: 10.1038/am.2015.65
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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