A Spectroscopic View of Electron-Phonon Coupling

Electron-phonon interaction in metals is a very old subject. Göran Grimvall in the preface to his classic book on this subject pointed out that 1000 papers had been published on this subject between 1960 and 1980 [1]. What can be new and exciting in such an old and mature field? The answer is surfaces and surface science techniques. Recent advances in experimental techniques coupled with ever-growing theoretical capabilities promise to create a renaissance in this subject. High-resolution angular-resolved photoemission is producing direct images of the distortion of the two-dimensional surface state bands near the Fermi energy caused by electron-phonon couplin