NMR investigations of hydrogenated Sm1.85Ce0.15CuO4
โ Scribed by N.M. Suleimanov; A.D. Shengelaya; R.G. Mustafin; E.F. Kukovitskii; P.W. Klamut; G.W. Chadzynski; H. Drulis; J. Janczak
- Book ID
- 103944808
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 162 KB
- Volume
- 185-189
- Category
- Article
- ISSN
- 0921-4534
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โฆ Synopsis
Gravimetric, X-ray and NHR mesurements were made to investigate the interaction of hydrogen with superconducting samples of Sma.ssCeo.lsCuO4. The suppression of superconductivity has been observed. By NMR studies the hydrogen absorption in the Sm-Ce-Cu-O ceramics has been proven. It is shownt that the direct dipolar coupling between electronic magnetic moment of Sm ion and ~H spin is the dominant mechavism in the spi~-lattice relaxation. A detailed analysis of the NMR data indicates that hydrogen can be located intersitially in Cu-O plane in a metallic, superconducting areas of the sample.
๐ SIMILAR VOLUMES
In the n-type superconductor Lnl.85Ceo.15Cu04 (Ln = Pr,Sm), substitution effects of La for Ln was studied. We could prepare the samples Lnl.ss-xLaxCeo.15Cu04 with a single phase ofT -type structure in the La concentratmn range of 0= < x~ 1.2 for both Pr and 8m systems. The lattice parameters a and c