Optical properties of Sr2Y(Ru1-X CuX)O6

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Title:	Optical properties of Sr2Y(Ru1-X CuX)O6
Authors:	Liu, H. L.;Her, J. L.;Chen, C. C.;Rao, S. M.;Wu, M. K.;Hsueh, W. F.;Chi, C. C.;錢凡之;Chien, F. Z.
Contributors:	淡江大學物理學系
Date:	2006-01
Issue Date:	2009-12-31 10:29:48 (UTC+8)
Publisher:	Kidlington:Pergamon Press
Abstract:	We present optical reflectance and Raman-scattering studies of double perovskite structure Sr2Y(Ru1KxCux)O6 systems as a function of temperature and doping. The optical conductivities of all doping samples studied have the character of an insulator at low frequencies, showing only optical phonons in the far-infrared. As the temperature is lowered, the A1 g apical oxygen phonon mode exhibits a noticeable softening below magnetic ordered and superconducting transitions, indicative of a strong lattice–spin-charge coupling in these materials.
Relation:	Journal of Physics and Chemistry of Solids 67(1-3), pp.302-304
DOI:	10.1016/j.jpcs.2005.10.074
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

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