Abstract
We interpret the inelastic He-scattering results for the Bi-O(0 0 1) surface of Bi 2CaSr 2Cu 2O 8, which exhibits an anisotropic superstructure. With a shell model calculation, which takes account of the superstructure, we account for the measurements and show that the appearance of rather dispersionless surface modes and the great similarity between the surface mode spectra in the 〈1 1 0〉 and 〈1 0 0〉 directions are direct results of the anisotropic superstructure. These features are some of the first examples of unexpected manifestations of a superstructure of a surface in the dynamics of that surface.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
