Properties of Nb/Co trilayers

The magnetic and electric properties of Nb/Co/Nb and Co/Nb/Co trilayers were studied experimentally. At 10 K, Co thickness larger than 0.4 nm showed hysteresis and ferromagnetism was well established in the trilayers. Below superconducting transition temperature ( T C), magnetic moments versus field...

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Veröffentlicht in:	Journal of magnetism and magnetic materials 2000-02, Vol.209 (1), p.231-233
Hauptverfasser:	Lee, S.F, Yu, C, Shih, W.T, Liou, Y, Yao, Y.D
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Low tc films Metals. Metallurgy Physics Proximity effect Proximity effects, weak links, tunneling phenomena, and Josephson effects Proximity effects, weak links, tunneling phenomena, and josephson effects, adreev effect, sn and sns junctions Superconducting films and low-dimensional structures Superconductivity
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Beschreibung
Zusammenfassung:	The magnetic and electric properties of Nb/Co/Nb and Co/Nb/Co trilayers were studied experimentally. At 10 K, Co thickness larger than 0.4 nm showed hysteresis and ferromagnetism was well established in the trilayers. Below superconducting transition temperature ( T C), magnetic moments versus field curves showed a mixture of superconductivity and ferromagnetism. The linear dependence of upper critical field with temperature close to T C showed superconductive coupling across 1 nm of Co.
ISSN:	0304-8853
DOI:	10.1016/S0304-8853(99)00696-4