Argentina
| info:eu-repo/semantics/article
Efficient Spin-Flip Excitation of a Nickelocene Molecule
Fecha
2017-03Registro en:
Ormaza, Maider; Bachellier, Nicolas; Faraggi, Marisa N.; Verlhac, Benjamin; Abufager, Paula Natalia; et al.; Efficient Spin-Flip Excitation of a Nickelocene Molecule; American Chemical Society; Nano Letters; 17; 3; 3-2017; 1877-1882
1530-6984
CONICET Digital
CONICET
Autor
Ormaza, Maider
Bachellier, Nicolas
Faraggi, Marisa N.
Verlhac, Benjamin
Abufager, Paula Natalia
Ohresser, Philippe
Joly, Loïc
Romeo, Michelangelo
Scheurer, Fabrice
Bocquet, Marie Laure
Lorente, Nicolás
Limot, Laurent
Resumen
Inelastic electron tunneling spectroscopy (IETS) within the junction of a scanning tunneling microscope (STM) uses current-driven spin-flip excitations for an all-electrical characterization of the spin state of a single object. Usually decoupling layers between the single object, atom or molecule, and the supporting surface are needed to observe these excitations. Here we study the surface magnetism of a sandwich nickelocene molecule (Nc) adsorbed directly on Cu(100) by means of X-ray magnetic circular dichroism (XMCD) and density functional theory (DFT) calculations and show with IETS that it exhibits an exceptionally efficient spin-flip excitation. The molecule preserves its magnetic moment and magnetic anisotropy not only on Cu(100), but also in different metallic environments including the tip apex. By taking advantage of this robusteness, we are able to functionalize the microscope tip with a Nc, which can be employed as a portable source of inelastic excitations as exemplified by a double spin-flip excitation process.