We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Influences of fluorine doping on the superconducting properties of β-FeSe.
- Authors
Shao, Botao; Zhang, Shengnan; Liu, Jixing; Feng, Jianqing; Li, Chengshan; Zhang, Pingxiang
- Abstract
Fluorine doping Fe1.2Se polycrystalline were prepared by solid-state sintering method. The influences of fluorine doping content and sintering temperatures on phase composition, lattice parameters, microstructure as well as superconducting properties were discussed in detail. It was found that fluorine doping could effectively reduce the content of non-superconducting hexagonal δ-FeSe phase. Besides, the content of hexagonal δ-FeSe phase and grain size of superconducting tetragonal β-FeSe phase were decreased with the sintering temperature increasing. Scanning electron microscopes (SEM) images indicated that the morphology of β-FeSe phase was a typical lamellar structure with the small particles of hexagonal δ-FeSe phase. Meanwhile, a higher critical temperature Tc of 8.3 K and larger shield volume fraction were obtained with high sintering temperature of 950 °C and proper F doping content.
- Subjects
POLYCRYSTALLINE semiconductors; SCANNING electron microscopes; FLUORINE; LATTICE constants; DOPING agents (Chemistry); CRITICAL temperature; POLYCRYSTALLINE silicon
- Publication
Journal of Materials Science: Materials in Electronics, 2021, Vol 32, Issue 8, p10368
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-021-05693-0