Coherent heavy quasiparticles in CePt5 surface alloy
arXiv:1104.2165 · doi:10.1103/PhysRevLett.106.186407
Abstract
We report on the results of a high-resolution angle-resolved photoemission (ARPES) study on the ordered surface alloy CePt5. The temperature dependence of the spectra show the formation of the coherent low-energy heavy-fermion band near the Fermi level. This experimental data is supported by a multi-band model calculation in the framework of the dynamical mean field theory (DMFT).
4 pages, 4 figures. Accepted for publication in Phys. Rev. Lett