Strunk, Christoph and Paschen, U. and Surgers, C. and Löhneysen, H. v.
Pair-breaking mechanisms in Nb/Gd/Nb films.
Physica B Condensed Matter 194, pp. 2403-2404.
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Several series of Nb/Gd/Nb triple layers have been grown in UHV by e--beam evaporation onto sapphire (1120BAR) substrates at 300 K. The superconducting transitions have been measured resistively and by dc-susceptibility, the ferromagnetic transition with the transverse magnetooptical Kerr effect. The Gd layers show long-range ferromagnetic order only above a layer thickness of 20 angstrom, which ...
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