Polarized Raman scattering study of blue bronze Tl(0.3)MoO(3)

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	Polarized Raman scattering study of blue bronze Tl(0.3)MoO(3)
	D. Yin; Q. M. Zhang; J. Oiler; C. Z. Li; R. Xiong; J. Shi
	2010
发表期刊	Physica B-Condensed Matter
ISSN	0921-4526
卷号	405 期号:17 页码:3782-3786
摘要	Temperature dependent polarized Raman spectra of quasi-one dimensional blue bronze Tl(0.3)MoO(3) are reported on a frequency range 100-1100 cm(-1). Frequency shift and splitting in some modes were observed, revealing the role of the alkali atom. Many new modes emerge at 170 K accompanied by charge density wave (CDW) formation, and show gradual temperature dependent intensity and line-width, implying the second order nature of CDW transition. A frequency "jump" is found for many Raman vibrational modes in Tl(0.3)MoO(3) near 110 K, confirming that the transition from an incommensurate to commensurate state occurs around this temperature. In addition, only three stretching vibration modes of terminal Mo-O bonds are observed for (xx) polarizations from 800 to 1100 cm(-1) at 300 K; new modes appear only when the temperature drops below 110 K and are ascribed to the splitting of the mode at 931 cm(-1) due to commensurate state formation. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[yin, di; li, changzhen; xiong, rui; shi, jing] wuhan univ, dept phys, key lab acoust & photon mat & devices, minist educ,hubei key lab organ & polymer optoele, wuhan 430072, peoples r china. [zhang, qingming] renmin univ china, dept phys, beijing 100872, peoples r china. [oiler, jonathon] arizona state univ, sch earth & space explorat, tempe, az 85281 usa. [shi, jing] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;shi, j (reprint author), wuhan univ, dept phys, key lab acoust & photon mat & devices, minist educ,hubei key lab organ & polymer optoele, wuhan 430072, peoples r china;niuniuyin@yahoo.com.cn
关键词	Blue Bronze Tl(0.3)Moo(3) Charge Density Wave Raman Spectra Transition Charge-density Waves Infrared Reflectivity Crystal-structure Low-temperatures Midgap-state K0.3moo3 K0.30moo3 Rb0.3moo3 Spectra Conductor
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31652
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. Yin,Q. M. Zhang,J. Oiler,et al. Polarized Raman scattering study of blue bronze Tl(0.3)MoO(3)[J]. Physica B-Condensed Matter,2010,405(17):3782-3786.
APA	D. Yin,Q. M. Zhang,J. Oiler,C. Z. Li,R. Xiong,&J. Shi.(2010).Polarized Raman scattering study of blue bronze Tl(0.3)MoO(3).Physica B-Condensed Matter,405(17),3782-3786.
MLA	D. Yin,et al."Polarized Raman scattering study of blue bronze Tl(0.3)MoO(3)".Physica B-Condensed Matter 405.17(2010):3782-3786.