New magnetic phases in the La-Sr-Cu-O sy
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I. Felner; U. Yaron; I. Nowik; E.R. Bauminger
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Article
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1992
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Elsevier Science
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English
⚖ 450 KB
The competition between superconductivity (SC) and magnetic order in the Cu02 planes of (La, \_=Gd,)2\_,Sr,Cu,\_,M,04, M =Fe, Zn, Ga and Ni was studied by magnetometry and 57Fe Mossbauer spectroscopy. In the superconducting (x= 0.15-0.2) samples substitution of La by Gd or Cu by Fe causes SC to dis