Open AccessReduced Local Symmetry in Lithium Compound Li 2 SrSiO 4 Distinguished by an Eu 3+ Spectroscopy Probe
Author(s) -
Chen Lei,
Cheng Peng,
Zhang Zhao,
He Liangrui,
Jiang Yang,
Li Guobao,
Jing Xiping,
Qin Yan'guang,
Yin Min,
Chan TingShan,
Hong Bin,
Tao Shi,
Chu Wangsheng,
Zhao Zhi,
Ni Haiyong,
Kohlmann Holger,
Oeckler Oliver
Publication year - 2019
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201802126
Subject(s) - local symmetry , lithium (medication) , local structure , symmetry (geometry) , crystallography , spectroscopy , ion , materials science , absorption (acoustics) , crystal structure , neutron diffraction , chemistry , physics , organic chemistry , medicine , geometry , mathematics , quantum mechanics , composite material , endocrinology
Research on lithium compounds has attracted much attention nowadays. However, to elucidate the precise structure of lithium compounds is a challenge, especially when considering the small ions that may be transferred between the interstitial voids. Here, the discovery of reduced local symmetry (symmetry breaking) in small domains of Li 2 SrSiO 4 is reported by employing Eu 3+ as a spectroscopic probe, for which X‐ray, neutron, and electron diffraction have confirmed the average long‐range structure with the space group P 3 1 21. However, luminescence shows a lower local symmetry, as confirmed by the extended X‐ray absorption fine structure. By considering the reduced symmetry of the local structure, this work opens the door to a new class of understanding of the properties of materials.