Internal friction study on perovskite manganite La0.67Ca0.33MnO3

HFCAS OpenIR

	Internal friction study on perovskite manganite La0.67Ca0.33MnO3
其他题名	In ternal friction study on perovskite manganite La_(0.67)Ca_(0.33)MnO_3
	Ma YQ(马永青)1; Song WH(宋文海)1 ; Dai JM(戴建明)1 ; Zhang RL(张瑞丽)1; Yang J(杨杰)1 ; Du JJ(杜家驹)1; Sun YP(孙玉平)1
	2003
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
摘要	Internal friction measurement of perovskite manganite La0.67Ca0.33MnO3 shows that there are three peaks in the spectra of internal friction Q(-1)(T) at temperatures 260 K, 222 K and 105 K, respectively. It is concluded, that the peak at 105 K is related to the electronic phase separation in ferromagnetic region. The broad peak around 222 K is composed of two sub-peaks located at 222 K and 234 K. This broad peak is of the characteristic of relaxation originating from the thermally activated motion of insulating and conduction domains. The activation energy and the relaxation time at infinite temperature are determined as 0.32 eV, 2.0 x 10(-12) s for 222 K subpeak and 0.38 eV, 2.5 x 10(-13) s for 234 K subpeak, respectively.
关键词	YOUNGS MODULUS LA1-XCAXMNO3 DIFFRACTION CHARGE PHASE internal friction perovskite manganite electronic phase separation
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:1267786
引用统计
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/44895
专题	中国科学院合肥物质科学研究院
作者单位	1.中国科学院固体物理研究所 2.中国科学院固体物理研究所 3.中国科学院固体物理研究所 4.中国科学院固体物理研究所 5.中国科学院固体物理研究所 6.中国科学院固体物理研究所 7.中国科学院固体物理研究所
推荐引用方式 GB/T 7714	Ma YQ,Song WH,Dai JM,et al. Internal friction study on perovskite manganite La0.67Ca0.33MnO3[J]. ACTA METALLURGICA SINICA,2003,39.
APA	马永青.,宋文海.,戴建明.,张瑞丽.,杨杰.,...&孙玉平.(2003).Internal friction study on perovskite manganite La0.67Ca0.33MnO3.ACTA METALLURGICA SINICA,39.
MLA	马永青,et al."Internal friction study on perovskite manganite La0.67Ca0.33MnO3".ACTA METALLURGICA SINICA 39(2003).