title: Crystal Growth, Structure, Resistivity, Magnetic, and Photoelectric Properties of One-Dimensional Selenometallate Ba2BiFeSe5.
abstract: Low-dimensional materials have attracted extensive research interest in recent years owing to their interesting structural chemistry and physical properties, which will greatly deepen our knowledge of these materials and could lead to additional breakthroughs in the future. Herein we have synthesized and characterized Ba2BiFeSe5, which adopts a quasi-one-dimensional structure and possesses some fascinating physical properties. The sharp divergences between the field-cooled (FC) and the zero-field-cooled (ZFC) data and the rather small magnetic moment per Fe3+(0.07 μB) strongly suggest that the title compound is weakly ferromagnetic with a high magnetic transition temperature above room temperature, which is controlled by competing super-exchange interactions within and between [FeBiSe5]∞anionic ladders. Moreover, with its narrow bandgap of 0.95 eV, Ba2BiFeSe5shows photoelectric properties with a photocurrent density of approximately 30 mA cm2at 5 V. Our study demonstrates that Ba2FeBiSe5might be a new type of multifunctional material that deserves further investigation.
authors.affiliation: Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.|University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
authors.forename: Xiaoshuang
authors.initials: X
authors.lastname: Li
authors.affiliation: College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China.
authors.forename: Xian
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Centre for High Pressure Research, School of Physics Bharathidasan University, Tiruchirapalli, 620024, India.
authors.forename: G
authors.initials: G
authors.lastname: Kalai Selvan
authors.affiliation: Centre for High Pressure Research, School of Physics Bharathidasan University, Tiruchirapalli, 620024, India.
authors.forename: S
authors.initials: S
authors.lastname: Arumugam
authors.affiliation: College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China.
authors.forename: Fuqiang
authors.initials: F
authors.lastname: Huang
authors.affiliation: Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
authors.forename: Yicheng
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
authors.forename: Jiyong
authors.initials: J
authors.lastname: Yao
keywords: chain structures; chalcogens; crystal growth; magnetic properties; semiconductors