Site Selectivity on Chalcogen Atoms in Superconducting La(O,F)BiSSe

Abstract

Single crystals of La(O,F)BiSSe were successfully grown by a CsCl flux method. Single crystal X-ray structural analysis revealed that the crystal structure is isostructural with BiS${}_2$- or BiSe${}_2$-based compounds 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 4.2 K in the magnetic susceptibility and resistivity measurement. The superconducting anisotropic parameter is determined to be 34 from its upper critical magnetic field. The anisotropy is in the same range with that of other members of the La(O,F)BiCh${}_2$ ($Ch$ = S, Se) family under ambient pressure.

arXiv comment17 pages + 2 pages for supplement, 6 figures

References in corpus (17)

• Superconductivity in novel BiS2-based layered superconductor LaO1-xFxBiS2
• Novel BiS2-based layered superconductor Bi4O4S3
• Superconductivity Appears in the Vicinity of an Insulating-Like Behavior in CeO${}_{1-x}$F${}_x$BiS${}_2$
• Superconductivity of F-substituted LnOBiS2 (Ln = La, Ce, Pr, Nd, Yb) compounds
• Superconductivity induced by La doping in Sr1-xLaxFBiS2 system
• Superconductivity induced by electron doping in the system La1-xMxOBiS2 (M = Ti, Zr, Hf, Th)
• Physics and chemistry review of layered chalcogenide superconductors
• Growth and superconducting properties of F-substituted ROBiS2 (R = La, Ce, Nd) single crystals
• Superconductivity in a new layered bismuth oxyselenide: LaO0.5F0.5BiSe2
• Crystal structures of LaO1-xFxBiS2 (x~0.23, 0.46): effect of F doping on distortion of Bi-S plane
• Evolution of superconductivity in BiS2-based superocnductor LaO0.5F0.5Bi(S1-xSex)2
• First single crystal growth and structural analysis of superconducting layered bismuth oxyselenide; La(O,F)BiSe2
• Growth and superconducting anisotropies of F-substituted LaOBiSe2 single crystals
• Soft x-ray photoemission study of new BiS${}_2$-layered superconductor LaO${}_{1-x}$F${}_x$BiS${}_2$
• High-Tc Phase of PrO0.5F0.5BiS2 single crystal induced by uniaxial pressure
• Pressure-induced phase transition for single crystalline LaO0.5F0.5BiSe2
• Enhanced superconductivity in F-doped LaO1-xFxBiSSe

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• Growth and physical properties of Ce(O,F)Sb(S,Se)2 single crystals with site-selected chalcogen atoms
• Bulk superconductivity in Pb-substituted BiS${}_2$-based compounds studied by hard-x-ray spectroscopy
• Investigation of superconducting properties and possible nematic superconductivity in self-doped BiCh2-based superconductor CeOBiS1.7Se0.3
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• Investigation of in-plane anisotropy of c-axis magnetoresistance for BiCh2-based layered superconductor NdO0.7F0.3BiS2
• The upper critical field in the BiCh2-based superconductors CeOBiS1.7Se0.3 and PrO0.5F0.5BiS2-xSex (x = 0, 0.3)