Synthesis, structure and physical properties of the new layered oxyselenides Bi2LnO4Cu2Se2 (Ln = rare earth). Issue 10 (28th October 2020)

• Record Type: Journal Article
• Authors: Tan, Shugang; Gao, Chenhao; Wang, Cao; Jing, Qiang; Zhou, Tong; Yin, Guangchao; Sun, Meiling; Xing, Fei; Cao, Rui; Sun, Yuping
• Is Part Of: Royal Society open science. Volume 7:Issue 10(2020)
• Publication Date: 2020-10-28
• Subjects: layered oxyselenides -- solid-state reaction -- band structure; Science -- Periodicals; 500
• DOI: 10.1098/rsos.201078
• Languages: English
• ISSNs: 2054-5703

Abstract

Abstract : We have synthesized a new series of layered oxyselenides Bi2 LnO4 Cu2 Se2 (Ln=Nd, Sm, Eu, Dy, Er, Yb). Their crystal structures and physical properties were studied through X-ray diffraction, electric transport measurements, bulk magnetization and first-principle calculation. All these compounds have a tetragonal structure with space group I4/mmm. They exhibit hole-type metallic behaviours which is also verified by the DFT calculation. The new Bi2 LnO4 -type block in these compounds may give people some enlightenment in synthesizing new iron-based superconductors or other layered compounds.