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Adv Mater. 2016 Sep;28(36):7936-7940. doi: 10.1002/adma.201601816. Epub 2016 Jul 4.

Near-Zero Thermal Expansion and High Ultraviolet Transparency in a Borate Crystal of Zn4 B6 O13.

Author information

1
Center for Crystal R&D, Key Lab of Functional Crystals and Laser Technology of Chinese Academy of Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
2
University of Chinese Academy of Sciences, Beijing, 100049, China.
3
Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, 660036, Russia.
4
Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russia.
5
Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
6
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.
7
State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
8
Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, China. xing@ustb.edu.cn.
9
Center for Crystal R&D, Key Lab of Functional Crystals and Laser Technology of Chinese Academy of Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. zslin@mail.ipc.ac.cn.
10
University of Chinese Academy of Sciences, Beijing, 100049, China. zslin@mail.ipc.ac.cn.

Abstract

Intrinsic isotropic near-zero thermal expansion is discovered in borate crystal Zn4 B6 O13 with high transparency in the ultraviolet region. First-principles calculations demonstrate that the very low thermal expansion originates mainly from the invariability of the solid [B24 O48 ] truncated octahedra that are fixed by the [Zn4 O13 ] clusters in the ZBO structure.

KEYWORDS:

borate crystals; high ultraviolet transparency; near-zero thermal expansion; sodalite cage structure

PMID:
27376511
DOI:
10.1002/adma.201601816

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