AI Article Synopsis
- Layered materials like graphene and transition metal (di)chalcogenides have been widely studied for their potential in nanoscale device applications, while layered oxides such as Aurivillius and Ruddlesden-Popper phases are also gaining interest due to their rich physics and device capabilities.
- A new layered oxide material called BAMO has been developed, featuring a unique self-assembled supercell structure with two mismatched layers: a thicker Bi-O layer and a thinner Al/Mn-O layer, stacked alternately.
- This BAMO material exhibits strong ferromagnetic and piezoelectric properties at room temperature, along with anisotropic optical behavior, indicating promising applications in future multifunctional device technologies.
Article Abstract
Layered materials, e.g., graphene and transition metal (di)chalcogenides, holding great promises in nanoscale device applications have been extensively studied in fundamental chemistry, solid state physics and materials research areas. In parallel, layered oxides (e.g., Aurivillius and Ruddlesden-Popper phases) present an attractive class of materials both because of their rich physics behind and potential device applications. In this work, we report a novel layered oxide material with self-assembled layered supercell structure consisting of two mismatch-layered sublattices of [BiO] and [MO] (M = Al/Mn, simply named BAMO), i.e., alternative layered stacking of two mutually incommensurate sublattices made of a three-layer-thick Bi-O slab and a one-layer-thick Al/Mn-O octahedra slab in the out-of-plane direction. Strong room-temperature ferromagnetic and piezoelectric responses as well as anisotropic optical property have been demonstrated with great potentials in various device applications. The realization of the novel BAMO layered supercell structure in this work has paved an avenue toward exploring and designing new materials with multifunctionalities.
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| http://dx.doi.org/10.1021/acs.nanolett.7b02284 | DOI Listing |
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