Tilted antiferromagnetic ordering of Mn in Nd0.62Ca0.38MnO3

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:	[Graduate Institute of Physics] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	465	View/Open

社群 sharing