Oscillating magnetic behavior in La1+xSr2-xMn2O7

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/39026

Title:	Oscillating magnetic behavior in La1+xSr2-xMn2O7
Authors:	Wu,SY;Li,WH;Lee,KC;Yang,HD
Contributors:	物理研究所
Keywords:	GIANT MAGNETORESISTANCE;FILMS
Date:	1999
Issue Date:	2010-07-08 14:02:34 (UTC+8)
Publisher:	中央大學
Abstract:	The AC magnetic susceptibilities in weak magnetic fields, with and without the presence of an applied DC magnetic field, have been performed to study the basic magnetic properties of the layered colossal magnetoresistance (CMR) compounds La1+xSr2-xMn2O7 with x = 0-0.4. A great number of peaks are evident in the temperature dependence of the AC susceptibility, and the peaks become better defined as the La concentration x is increased. The observed peaks may be grouped into four types according to their behavior under an applied DC held. Among them, the peaks associated with the quasi-2D bilayered Mn ordering, CMR effect, and 3D Mn ordering are recognized. The fourth one may possibly be due to charge ordering. (C) 1999 Elsevier Science B.V. All rights reserved.
Relation:	PHYSICA B-CONDENSED MATTER
Appears in Collections:	[Graduate Institute of Physics] journal & Dissertation

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