Investigation of the Structural and Dynamical Properties of the (001) Surface of LiCu2O2

((1) Physics department; Boston University (2) Center of Condensed Matter Sciences; F. C. Chou (2); H. C. Hsu (2); M. El-Batanouny (1); National Taiwan University); Xuetao Zhu (1); Yangyang Yao (1)

arxiv: 0910.0561 · v1 · submitted 2009-10-03 · ❄️ cond-mat.str-el · cond-mat.mtrl-sci

Investigation of the Structural and Dynamical Properties of the (001) Surface of LiCu2O2

Yangyang Yao (1) , Xuetao Zhu (1) , H. C. Hsu (2) , F. C. Chou (2) , M. El-Batanouny (1) , ((1) Physics department , Boston University (2) Center of Condensed Matter Sciences , National Taiwan University) This is my paper

classification ❄️ cond-mat.str-el cond-mat.mtrl-sci

keywords surfacedynamicaldynamicslatticelicu2o2scatteringbeambest

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We report on studies of the structure and dynamics of the (001)surface of single crystal LiCu2O2, investigated by He beam scattering at room temperature, and with lattice dynamical models. The best fit surface corrugation to measured diffraction patterns shows that the surface termination is exclusively a Li+1Cu+2O-2 plane. Lattice dynamics fits to inelastic He scattering spectra reveal the presence of two low-lying surface phonon modes, identified with the motion of Cu+2, Li+1 surface ions normal to the surface.

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Investigation of the Structural and Dynamical Properties of the (001) Surface of LiCu2O2

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