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Growth, domain structure, and magnetic properties of CaMnO3 (110) and La0.7Ca0.3MnO3 (110) layers synthesized on the hexagonal YMnO3 (0001)

Abstract

Oxide heterostructures based on cubic perovskite have been studied widely but here has been little interest on the combination of different polymorphs, such as hexagonal and cubic manganites, into a single heterostructure. This paper reports the growth of heterostructures comprised of two manganite compounds with different in-plane lattice types, cubic CaMnO3 (CMO) and hexagonal YMnO3 (YMO), via pulsed laser deposition. The CMO layer grew on the YMO (0001) plane despite the lattice type mismatch. In this heterostructure, the YMO(0001) and CMO(110) planes were parallel to the interface, whereas the YMO(-2110) and CMO(-11-2) were perpendicular to it, satisfying YMO(-2110)//CMO(-11-2). This approach to combine two compounds with lattice type mismatch enables the construction of YMO/La0.7Ca0.3MnO3 (LCMO)/YMO trilayers, which is a potential multiferroic system. Such a heterostructure has an interface structure and domain patterns that cannot be realized in conventional heterostructures, offering a unique opportunity to observe emergent phenomena.

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Publication details

The article was received on 27 Jun 2017, accepted on 10 Aug 2017 and first published on 10 Aug 2017


Article type: Paper
DOI: 10.1039/C7CE01187C
Citation: CrystEngComm, 2017, Accepted Manuscript
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    Growth, domain structure, and magnetic properties of CaMnO3 (110) and La0.7Ca0.3MnO3 (110) layers synthesized on the hexagonal YMnO3 (0001)

    T. Dong, V. Viet, W. Shon, J. Rhyee, T. Y. Koo, S. Seungwoo, N. Lee and H. Kim, CrystEngComm, 2017, Accepted Manuscript , DOI: 10.1039/C7CE01187C

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