Back to Search
Start Over
Site selectivity on chalcogen atoms in superconducting La(O,F)BiSSe.
- Source :
-
Applied Physics Letters . 3/16/2015, Vol. 106 Issue 11, p1-5. 5p. 2 Diagrams, 2 Charts, 4 Graphs. - Publication Year :
- 2015
-
Abstract
- Single crystals of La(O,F)BiSSe were grown by using a CsCl flux method. Single crystal X-ray structural analysis reveals that the crystal structure is isostructural to the BiS2- or BiSe2-based compounds crystallizing with space group P4/nmm (lattice parameters a=4.1110(2)Å, c=13.6010(7)Å). However, the S atoms are selectively occupied at the apical site of the Bi-SSe pyramids in the superconducting layer. The single crystals show a superconducting transition at around 4.2K in the magnetic susceptibility and resistivity measurements. The superconducting anisotropic parameter is determined to be 34-35 from its upper critical magnetic field. The anisotropy is in the same range with that of other members of the La(O,F)BiCh2 (Ch=S, Se) family under ambient pressure. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 106
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 101718039
- Full Text :
- https://doi.org/10.1063/1.4915302