Hybridization of electronic bands along the 〈110〉 axis in platinum observed by spin-polarized, momentum-resolved photoemission

Spin-polarized, angle-resolved, ultraviolet photoemission spectra of the normal emission from a clean, (1×2) reconstructed platinum (110) surface have been measured at the Berlin synchrotron storage ring BESSY using circularly polarized, normally incident light. Along low-symmetry directions, such as Σ, no general theoretical prediction about the sign or magnitude of the spin polarization can be made. The present experimental results show …