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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/39110


    Title: Tilted antiferromagnetic ordering of Mn in Nd0.62Ca0.38MnO3
    Authors: Wu,SY;Li,WH;Lee,KC;Lynn,JW;Liu,RS;Wu,JB;Huang,CY
    Contributors: 物理研究所
    Keywords: MAGNETORESISTANCE;VALENCE
    Date: 1998
    Issue Date: 2010-07-08 14:05:14 (UTC+8)
    Publisher: 中央大學
    Abstract: The magnetic ordering of the Mn spins in polycrystalline Nd0.62Ca0.38MnO3 has been investigated by means of neutron diffraction and ac magnetic susceptibility measurements. Three peaks around 230, 90, and 40 K were observed in the temperature dependence of the in-phase component of the ac susceptibility, chi '(T). Neutron diffraction measurements show that the peak at 90 K is associated with the ordering of the Mn spins, and that at 40 K is due to the reorientation of the Mn spins. Both ferromagnetic and antiferromagnetic coupling between the Mn spins were observed. The spins order at T-N approximate to 130 K, with a spin structure consisting of ferromagnetically coupled, tilted antiferromagnetic sheets. No evidence was found from the neutron diffraction data to indicate that the peak around 230 K in chi '(T) is of magnetic origin, which suggests that it is associated with charge ordering. (C) 1998 American Institute of Physics.
    Relation: JOURNAL OF APPLIED PHYSICS
    Appears in Collections:[物理研究所] 期刊論文

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