Abstract
We report on a spectroscopic multitechnique approach to study the metal/radical spinterface formed by a perchlorinated trityl radical derivative and either gold or silver. The spectroscopic fingerprint of their paramagnetic properties could be determined by comparison with their diamagnetic precursor and by DFT calculations. Thanks to the presented approach, we could gain unprecedented insight into the radical-metal interaction and how this latter perturbs the spin polarization and consequently the magnetoelectronic properties of the radical adlayer. Knowledge of the factors influencing the spinterface is an essential tool toward the tailoring of the properties of spin-based electronic devices.
Highlights
We report on a spectroscopic multitechnique approach to study the metal/radical spinterface formed by a perchlorinated trityl radical derivative and either gold or silver
Organic radical-metal interfaces can be considered as spinterfaces, a term initially coined for interfaces with a spindependence density of states,15 since such a property can be attained in these interfaces under a very large magnetic field or at moderate magnetic fields but very low temperatures
We present a multitechnique spectroscopic approach, based on synchrotron and laboratory emission and absorption techniques (e.g valence band and core level photoemission spectroscopies, Valence band (VB) potentials. IPS (PES) and PES; inverse photoemission spectroscopy, IPS; angle-resolved near-edge X-ray absorption spectroscopy, NEXAFS), supported by ab initio simulations to investigate the spinterfaces formed by a perchlorinated trityl radical derivative and two noble metals, Au(111) and Ag(111)
Summary
We report on a spectroscopic multitechnique approach to study the metal/radical spinterface formed by a perchlorinated trityl radical derivative and either gold or silver.
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