Raman spectra of Yl-xCaxBa2Cu408 were investigated. At the Ca concentraiton of 10 %, which was solubility limit, frequency shift of 2 cm -1 was observed in the peaks at 492 cm -1 and 595 cm "1 assigned to the motion of 0(1) and 0(4) atoms, respectively. It is suggested that the stractural change due
Effects of Ni substitution on the superconducting and Raman spectra in YBa2Cu4O8
โ Scribed by N. Watanabe; N. Koshizuka; N. Seiji; H. Yamauchi
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 500 KB
- Volume
- 234
- Category
- Article
- ISSN
- 0921-4534
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
We have presented the results of Zn and Ga substitution in place of Cu in YBa,&Os (Y-124). The samples of YBaZ(Cu,\_,Zn,)40s with x=0.00-0.20 and YBaZ(Cu,\_,GaX)dOs with x=0.01-0.10 were synthesised at ambient oxygen pressure using sodium oxalate. With increase in concentration of Zn in Y-124 no sig
Pr substituted YBa2Cu4Os ( 1 : 2: 4) has been synthesized by a solid-state reaction at 930 ยฐ C-950 ยฐ C in 200 bar oxygen pressure. Pr could be substituted only up to 20% i.e., Yo.sPro.2Ba2Cu4Os. Tc decreased with increasing Pr; however, Tc could be restored by co-substitution of Ca along with Pr whi