Crystal structure of stage 1 iodine intercalated superconducting IBi sub 2 Sr sub 2 CaCu sub 2 O sub x
Conference
·
OSTI ID:5237601
The crystal structure of stage-1 iodine-intercalated superconducting IBi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} has been determined by transmission electron microscopy to belong to the superspace group C{sub {anti 1}1}{sub {anti 1}}{sup Pma2} with subcell lattice parameters a = 5.4 {Angstrom}, b = 5.4 {Angstrom}, c = 18.8 {Angstrom}, and a structural modulation wavelength of 26 {Angstrom}. Intercalated iodine atoms alter the atomic stacking across Bi-O layers from the staggered configuration characteristic of superconducting Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} to a vertically aligned configuration in IBi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x}. From the atomic spacings apparent in the images, it is concluded that the iodine layers bond to their neighboring Bi-O layers by van der Waals interactions. 9 refs., 8 figs., 2 tabs.
- Research Organization:
- Lawrence Berkeley Lab., CA (United States)
- Sponsoring Organization:
- DOE; NSF; USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5237601
- Report Number(s):
- LBL-30948; CONF-911202--1; ON: DE92000849; CNN: DMR88-18404
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
HALOGEN COMPOUNDS
HIGH-TC SUPERCONDUCTORS
IODINE COMPOUNDS
IODINE OXIDES
LATTICE PARAMETERS
MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
HALOGEN COMPOUNDS
HIGH-TC SUPERCONDUCTORS
IODINE COMPOUNDS
IODINE OXIDES
LATTICE PARAMETERS
MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY