Ceramic phases with one-dimensional long-range order
Yin, Deqiang; Chen, Chunlin; Saito, Mitsuhiro; Inoue, Kazutoshi; Ikuhara, Yuichi
Source PublicationNATURE MATERIALS
AbstractSolids are generally classified into three categories based on their atomic arrangement: crystalline, quasicrystalline and amorphous(1-4). Here we report MgO and Nd2O3 ceramic phases with special atomic arrangements that should belong to a category of solids different from these three well known categories by combining state-of-the-art atomic-resolution scanning transmission electron microscopy and first-principles calculations. The reported solid structure exhibits a one-dimensional (1D) long-range order with a translational periodicity and is composed of structural units that individually have atomic arrangements similar to those observed in coincidence-site lattice configurations present at grain boundaries. Regardless of the insulating nature of the bulk MgO, the bandgap of which is measured to be 7.4 eV, the MgO 1D ordered structure is a wide-bandgap semiconductor with a bandgap of 3.2 eV owing to this special atomic arrangement. The discovery of 1D ordered structures suggests that the structural categories of solids could be more abundant, with physical properties distinct from their regular counterparts.
Indexed BySCI
WOS IDWOS:000452876200010
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
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Yin, Deqiang,Chen, Chunlin,Saito, Mitsuhiro,et al. Ceramic phases with one-dimensional long-range order[J]. NATURE MATERIALS,2019,18(1):19-+.
APA Yin, Deqiang,Chen, Chunlin,Saito, Mitsuhiro,Inoue, Kazutoshi,&Ikuhara, Yuichi.(2019).Ceramic phases with one-dimensional long-range order.NATURE MATERIALS,18(1),19-+.
MLA Yin, Deqiang,et al."Ceramic phases with one-dimensional long-range order".NATURE MATERIALS 18.1(2019):19-+.
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