title: Theory of single-spin inelastic tunneling spectroscopy.
abstract: I show that recent experiments of inelastic scanning tunneling spectroscopy of single and a few magnetic atoms are modeled with a phenomenological spin-assisted tunneling Hamiltonian so that the inelastic dI/dV line shape is related to the spin spectral weight of the magnetic atom. This accounts for the spin selection rules and dI/dV spectra observed experimentally for single Fe and Mn atoms deposited on Cu2N. In the case of chains of Mn atoms it is found necessary to include both first and second-neighbor exchange interactions as well as single-ion anisotropy.
authors: Departamento de Física Aplicada, Universidad de Alicante, San Vicente del Raspeig, 03690 Spain.
authors: J
authors: J
authors: Fernández-Rossier