Raman scattering study of the spin ladder compound Sr(14) Cu(24) O(41+delta)

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	Raman scattering study of the spin ladder compound Sr(14) Cu(24) O(41+delta)
	L. Cheng; R. Xiong; J. Shi
	2010
发表期刊	Acta Physica Sinica
ISSN	1000-3290
卷号	59 期号:7 页码:5078-5084
摘要	The spin ladder compounds Sr(14) Cu(24) O(41 + delta) were synthesized by conventional solid state reaction method with subsequent annealing at 400, 500, 600, 800 and 900 degrees C, respectively. The energy dispersive spectroscope ( EDS) measurement confirms that the content of oxygen in the samples decreases with the increasing of annealing temperature. The measurement of magnetic susceptibility reveals that the sample annealing at 600 degrees C has the largest number of dimers. The measurement of Raman spectrum shows some new Raman vibrational features. Corresponding to delta > 0 or delta < 0 in the sample, some Raman modes appear, and some other Raman modes disappear, which is due to the fact that the lattice distortion alpha = c(1)/c(c) is near the minimal value 10/7 and the Cu-O bond has relatively long length.
部门归属	[cheng li; xiong rui; shi jing] wuhan univ, sch phys & technol, key lab acoust & photon mat & device minist educ, wuhan 430072, peoples r china. [shi jing] int ctr mat phys, shenyang 110016, peoples r china.;xiong, r (reprint author), wuhan univ, sch phys & technol, key lab acoust & photon mat & device minist educ, wuhan 430072, peoples r china;xiongrui@whu.edu.cn
关键词	Raman Scattering Spin Ladder Compound Sr(14) Cu(24) o(41) Oxygen Content Optical Phonons Cuo2 Chains Sr14cu24o41 Crystal Dependence
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31046
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Cheng,R. Xiong,J. Shi. Raman scattering study of the spin ladder compound Sr(14) Cu(24) O(41+delta)[J]. Acta Physica Sinica,2010,59(7):5078-5084.
APA	L. Cheng,R. Xiong,&J. Shi.(2010).Raman scattering study of the spin ladder compound Sr(14) Cu(24) O(41+delta).Acta Physica Sinica,59(7),5078-5084.
MLA	L. Cheng,et al."Raman scattering study of the spin ladder compound Sr(14) Cu(24) O(41+delta)".Acta Physica Sinica 59.7(2010):5078-5084.