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나노 구조 물리 연구단
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Creation of two-dimensional layered Zintl phase by dimensional manipulation of crystal structure

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Title
Creation of two-dimensional layered Zintl phase by dimensional manipulation of crystal structure
Author(s)
Junseong Song; Hyun Yong Song; Zhen Wang; Seokhee Lee; Jae-Yeol Hwang; Seung Youb Lee; Jouhahn Lee; Dongwook Kim; Kyu Hyong Lee; Youngkuk Kim; Sang Ho Oh; Sung Wng Kim
Publication Date
2019-06
Journal
SCIENCE ADVANCES, v.5, no.6, pp.eaax0390 -
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Abstract
The discovery of new families, beyond graphene, of two-dimensional (2D) layered materials has always attracted great attention. However, it has been challenging to artificially develop layered materials with honeycomb atomic lattice structure composed of multicomponents such as hexagonal boron nitride. Here, through the dimensional manipulation of a crystal structure from sp(3)-hybridized 3D-ZnSb, we create an unprecedented layered structure of Zintl phase, which is constructed by the staking of sp(2)-hybridized honeycomb ZnSb layers. Using structural analysis combined with theoretical calculation, it is found that the 2D-ZnSb has a stable and robust layered structure. The bidimensional polymorphism is a previously unobserved phenomenon at ambient pressure in Zintl families and can be a common feature of transition metal pnictides. This dimensional manipulation of a crystal structure thus provides a rational design strategy to search for new 2D layered materials in various compounds, enabling unlimited expansion of 2D libraries and corresponding physical properties. © The Authors
URI
https://pr.ibs.re.kr/handle/8788114/6167
ISSN
2375-2548
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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