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Room temperature diluted ferromagnetic semiconductor is a very promising candidate for spintronics applications. In this work, we present the cobalt ion implanted ZnO epitaxial thin film under controlled annealing temperature to investigate the origin of ferromagnetism in this system. For the as-implanted sample a metallic cobalt cluster was observed. After(More)
Cabbage seedlings grown in vitro were exposed to excess levels of heavy metals, including Cd, Mo, and Zn. High metal levels affected plant growth at cotyledonary stage. Seedlings under Cd, Mo, and Zn treatments could not produce root hairs and true leaves. Under stress conditions, seedlings accumulated a higher amount of anthocyanins in their cotyledons(More)
In this study, we have investigated the magnetic properties and local structures of discontinuous-Co/sub 70/Fe/sub 30/(x /spl Aring/)-ZnO multilayers (MLs). With the variation of Co/sub 70/Fe/sub 30/ nominal thickness, the phase transition from diluted magnetic semiconductor (DMS) phase, x=1 ML, to granular phase, x=5, and 9 MLs, is indicated from the(More)
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