Premium
On‐Surface Magnetometry: The Evaluation of Superexchange Coupling Constants in Surface‐Wired Single‐Molecule Magnets
Author(s) -
Tancini Erik,
Mannini Matteo,
Sainctavit Philippe,
Otero Edwige,
Sessoli Roberta,
Cornia Andrea
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201303585
Subject(s) - superexchange , spintronics , magnet , magnetometer , condensed matter physics , magnetic circular dichroism , materials science , inductive coupling , monolayer , molecule , spin polarization , chemistry , nanotechnology , physics , ferromagnetism , magnetic field , quantum mechanics , organic chemistry , astronomy , electron , spectral line
A comfortable environment : Interaction with a gold surface fully preserves the spin structure of a Fe 3 Cr single‐molecule magnet of current interest in molecular spintronics. Magnetic polarization at metal sites is measured over a broad temperature range (from 10 to 300 K) by X‐ray magnetic circular dichroism (XMCD), which provides the required monolayer sensitivity. The data are used to evaluate FeCr superexchange coupling interactions, which compare well with bulk‐phase values in both sign and strength (see figure).