Abstract
Films of Ho x Mo6S8−y , in which ferromagnetism and superconductivity can coexist, have been made by a d.c. getter sputtering method. These films have been characterized by x-rays, ion beams, measurements of resistance versus external magnetic fields and temperature, critical temperature and a.c. susceptibility. Resistance measurements in zero magnetic field did not show reentrance to the normal state in contrast to the a.c. susceptibility measurements which did show reentrant behaviour at a temperatureT c 2=0.6 K.
Resistance measurements in external magnetic fields parallel to the film surface show that this field induces reentrance to the normal state atT c 2=0.6 K whereas in perpendicular magnetic field up to 2 kOe the films were still superconducting down to 70 mK. Such anomalous behaviour is explained in terms of a model by Tachiki et al.
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Przysłupski, P., Poppe, U., Fischer, K. et al. Preparation and properties of sputtered Ho x Mo6S8−y thin films. Z. Physik B - Condensed Matter 59, 407–412 (1985). https://doi.org/10.1007/BF01328849
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DOI: https://doi.org/10.1007/BF01328849