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- W2383149275 abstract "Polycrystalline samples of Nd_ 2-x Sr_ x CoO_ 4 (x 1.25, 1.33, 1.60) were prepared by a conventional solid-stated reaction. The results of X-ray diffraction confirmed that the samples were pure and had a tetragonal K_ 2 NiF_ 4 -type structure. The relationship between reaistivity and temperature showed that all the samples were semiconductors. For the samples with x1.25 and x 1.33, the thermopower was positive. But for the sample with x1.66, the thermopower changed from positive to negative at 60K. Magnetic measurements indicated the samples were in the spin-glass states at low temperature. Through electron spin resonance measurementwe found that ferromagnetic and paramagnetic regions competed with each other severely around Curie temperaturein the sample with x 1.25. The intense coupling between orbit and spin caused a short relational time of spin and lattice, thus widened the spectrum." @default.
- W2383149275 created "2016-06-24" @default.
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- W2383149275 date "2005-01-01" @default.
- W2383149275 modified "2023-09-27" @default.
- W2383149275 title "THE DETAILED PHYSICAL PROPERTIES OF Nd_(2-x)Sr_xCoO_4(x=1.25,1.33,1.60)" @default.
- W2383149275 hasPublicationYear "2005" @default.
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