Multiple diffuse scattering and tweed contrast in YBa2Cu3O7-δ
✍ Scribed by Zhu, Yimei; Suenaga, M.; Tafto, J.
- Book ID
- 111879745
- Publisher
- Taylor and Francis Group
- Year
- 1991
- Tongue
- English
- Weight
- 864 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0950-0839
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We have measured the electron momentum density in both insulating PrBa 2 Cu 3 O 7Ϫd and superconducting YBa 2 Cu 3 O 7Ϫd : We find a remarkable difference in the anisotropy of the momentum density, even though LDA based calculations predict similar behaviour for both. Our results can be explained as
Electron paramagnetic resonance (EPR) measurements on polycrystalline YBazCu,07-d prepared via the citrates and the usual ceramic route of Bring the oxides and BaC03 are reported. The single phase samples of orthorhombic YBa2Bu3006.9 and tetmgonal YBa,Cu,O, obtained from a citrate precursor do not e