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- W2352131079 abstract "Effect of Fe 3+ substitution for manganese(Mn)ions on magnetic and transport properties was investigated for layered perovskite compound LaSr2Mn2-xFexO7.The Fe 3+ doping hampered the canted antiferromagnetic(AFM)exchange at low temperatures and their Neel temperature(TN)decreased from 138 K(x=0)to 101 K(x=0.3).Meanwhile,spin glass,charge ordering and metal-insulator transition were suppressed by Fe 3+ addition.This can be ascribed to Mn site disorder caused by random substitution of Fe 3+.The resistivity increased obviously with x because the double exchange interaction channel was broken by Fe 3+ addition.The resistivity of all samples in the low temperature range fit Mott's variable range hopping model;in the high temperature range,the resistivity fit the nearest-neighbor hopping model of small polarons." @default.
- W2352131079 created "2016-06-24" @default.
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- W2352131079 date "2007-01-01" @default.
- W2352131079 modified "2023-09-25" @default.
- W2352131079 title "ELECTRICAL AND MAGNETIC PROPERTIES OF PEROVSKITE COMPOUND LaSr_2Mn_(2-x)FexO_7 DOPED ON B-SITE" @default.
- W2352131079 hasPublicationYear "2007" @default.
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