Characterization of the Nb-B superlattice system
- Franco, Diego Gaspar
- Sarmiento Chavez, Ana Carolina
- Schenone, Nahuel Francisco
- Llacsahuanga Allca, A. E.
- Gomez Berisso, Mariano
- Fasano, Yanina
- Guimpel, Julio Juan
DOIAbstract
We study the growth, stacking and superconducting properties of Nb and B thin films and superlattices. The interest in these resides in their possible use in transition edge neutron sensors. The samples were grown by magnetron sputtering over Si (1 0 0) substrates. The X-ray diffraction patterns for all Nb containing samples show a Nb (1 1 0) preferential orientation. From the low-angle X-ray reflectivity we obtain information on the superlattice structure. The superconducting transition temperatures of the superlattices, obtained from the temperature dependence of the magnetization, are higher than those of single Nb films of similar thickness. The temperature dependence of the perpendicular and parallel upper critical fields indicate that...
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