Abstract
Gravimetric, X-ray and NMR mesurements were made to investigate the interaction of hydrogen with superconducting samples of Sm1.85Ce0.15CuO4. The suppression of superconductivity has been observed. By NMR studies the hydrogen absorption in the SmCeCuO ceramics has been proven. It is shown, that the direct dipolar coupling between electronic magnetic moment of Sm ion and 1H spin is the dominant mechanism in the spin-lattice relaxation. A detailed analysis of the NMR data indicates that hydrogen can be located intersitially in CuO plane in a metallic, superconducting areas of the sample.
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