Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
70 (1991), S. 1057-1059
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We have investigated the structure of V-Sr-Tl-O system with transmission electron microscopy. The majority phase in VSrTl0.2Oy samples with a sharp resistivity drop around 165 K is identified as V2Sr0.6TlδOy with δ ranging from 0.01 to 0.04. This phase has a hexagonal structure, with point group 6/mmm, space group P6/mmm, and lattice parameters a=0.569 nm and c=1.284 nm. Upon in situ cooling from room temperature to 130 K, no evidence of structure change is observed. When the crystals of V2Sr0.6TlδOy are heated in situ, two superstructures are formed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.349695
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