title: Area negative thermal expansion in a beryllium borate LiBeBO3 with edge sharing tetrahedra.
abstract: A very rare area negative thermal expansion phenomenon is observed in a newly discovered alkali beryllium borate LiBeBO3, which is characterized by [BeBO3]∞ double layers intraconnected by edge-sharing BeO4 tetrahedra. This unusual thermal behavior is attributed to the combined vibrational effects of the abnormal Be-O structures and Li(+) cations.
authors.affiliation: Beijing Center for Crystal R&D, Key Lab of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry (TIPC), Chinese Academy of Sciences (CAS), Beijing 100190, PR China. zslin@mail.ipc.ac.cn.
authors.forename: Wenjiao
authors.initials: W
authors.lastname: Yao
authors.forename: Xingxing
authors.initials: X
authors.lastname: Jiang
authors.forename: Rongjin
authors.initials: R
authors.lastname: Huang
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Chuanjun
authors.initials: C
authors.lastname: Huang
authors.forename: Zheshuai
authors.initials: Z
authors.lastname: Lin
authors.forename: Laifeng
authors.initials: L
authors.lastname: Li
authors.forename: Chuangtian
authors.initials: C
authors.lastname: Chen