Journal
DALTON TRANSACTIONS
Volume 50, Issue 19, Pages 6637-6641Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0dt04288a
Keywords
-
Categories
Funding
- JSPS KAKENHI [26105002]
- Yazaki Memorial Foundation for Science and Technology
Ask authors/readers for more resources
In this study, oxygen intercalation and hole doping were achieved by co-sintering alkaline earth metal oxides with La2O2Bi, leading to an expansion of the c-axis length and improved electrical conduction. The hole mobility in La2O2Bi was significantly enhanced, reaching up to 150 cm(2) V-1 s(-1), almost double the value reported in previous studies.
Metallic anti-ThCr2Si2-type RE2O2Bi (RE = rare earth) with Bi square nets show superconductivity while insulating La2O2Bi shows high hole mobility, by expanding the c-axis length through oxygen intercalation. In this study, alkaline earth metal oxides (CaO, SrO and BaO) were co-sintered with La2O2Bi. CaO and BaO served as oxygen intercalants without the incorporation of Ca and Ba in La2O2Bi. On the other hand, SrO served not only as an oxygen intercalant but also as a hole dopant via Sr substitution for La in La2O2Bi. The oxygen intercalation and hole doping resulted in the expansion of the c-axis length, contributing to the improved electrical conduction. In addition, the hole mobility was enhanced up to 150 cm(2) V-1 s(-1) in La2O2Bi, which is almost double the mobility in a previous study.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available