Growth and characterization of high-quality single crystals of R2-xCexCuO4-y (R = Nd, Sm)
โ Scribed by J.L. Peng; Z.Y. Li; R.L. Greene
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 643 KB
- Volume
- 177
- Category
- Article
- ISSN
- 0921-4534
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๐ SIMILAR VOLUMES
ystals of the N-type superconducting Nd2\_~CexCuO4\_~. system have been grown by a self-flux technique. In this method, excess Ce is required to obtain single crystals with optimal superconducting properties. Crystals grown by this technique show superconducting transition temperatures with onsets o
Infrared absorption spectra of Nd2\_~CexCuO4 and R2CuO4 (R=Pr, Nd, Sm, and Gd) have been measured in the energy region between 250 and 800cm-]at room temperature. For Nd2-xCexCuO4 , it is found that the mode at about 350cm-1, which is the vibration of oxygen in the R-O layers along the a-axis, disap