Muon spin rotation studies of SmFeAsO(0.85) and NdFeAsO(0.85) superconductors

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	Muon spin rotation studies of SmFeAsO(0.85) and NdFeAsO(0.85) superconductors
	Khasanov, R ; Luetkens, H ; Amato, A ; Klauss, HH ; Ren, ZA ; Yang, J ; Lu, W ; Zhao, ZX
刊名	PHYSICAL REVIEW B
	2008
卷号	78 期号:9
关键词	PENETRATION-DEPTH VORTEX STATE II SUPERCONDUCTORS CUPRATE PHASE SR TC
ISSN号	1098-0121
通讯作者	Khasanov, R: Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland.
中文摘要	We present a theoretical description of the excitation of a stretch mode and energy transfers among different degrees of freedom within an adatom-substrate system under an infrared resonant laser field. There are two competing mechanisms via which the adatom-substrate bond can be highly excited: The pooling process and the absorption of multiphotons. We show that if the frequency dispersion of the laser is much smaller than the anharmonicity of the selected mode, namely, if the laser can be treated as monochromatic, the pooling process is dominant in exciting the stretch mode to highly vibrational states. As the frequency dispersion of the laser increases, the excitation to highly vibrational states by direct photon absorption becomes more dominant. We further show that the dependences of the two mechanisms on photon frequency are quite different: If pooling dominates, there is only a single peak in the excitation probability; if multiphoton absorption dominates, there may exist several peaks and the main peak may exhibit a redshift. These findings are illustrated using the H/Si(111) system as a prototype example.
收录类别	SCI
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/42436]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Khasanov, R,Luetkens, H,Amato, A,et al. Muon spin rotation studies of SmFeAsO(0.85) and NdFeAsO(0.85) superconductors[J]. PHYSICAL REVIEW B,2008,78(9).
APA	Khasanov, R.,Luetkens, H.,Amato, A.,Klauss, HH.,Ren, ZA.,...&Zhao, ZX.(2008).Muon spin rotation studies of SmFeAsO(0.85) and NdFeAsO(0.85) superconductors.PHYSICAL REVIEW B,78(9).
MLA	Khasanov, R,et al."Muon spin rotation studies of SmFeAsO(0.85) and NdFeAsO(0.85) superconductors".PHYSICAL REVIEW B 78.9(2008).