Superconducting Tl2Ba2CuO6: The orthorhombic form
β Scribed by J.B. Parise; J. Gopalakrishnan; M.A. Subramanian; A.W. Sleight
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 332 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0022-4596
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π SIMILAR VOLUMES
The phonon spectrum of the T12Ba2CuO 6 compound has been investigated by Raman scattering for variations in the T1 and oxygen contents. We observe large changes of the vibrational frequencies and lineshapes of the apical oxygen, O (2), and the oxygen in the double T10 layer, O (3), for a T1 content
HREM of samples of orthorhombic, non-superconducting T12Ba2CuIO6 and "tetragonal" superconducting TI2Ba2CuIO6 shows that the difference in orthorhombicity is associated with the degree of order of the superstructure. The superstructure modulation is unidirectional and is generated by the vector q= +