References of "Fresch, Barbara"
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See detailTypical response of quantum pure states
Fresch, Barbara ULg; Moro, Giorgio J.

in European Physical Journal B -- Condensed Matter (in press)

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See detailReactivity of auranofin with selenols and thiols: implications for the anticancer activity of gold(I) compounds
Di Sarra, Francesca; Fresch, Barbara ULg; Bini, Riccardo et al

in European Journal of Inorganic Chemistry [=EurJIC] (2013)

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See detailModeling of ligand induced changes in the magneto-structural properties of Pd13 cluster
Fresch, Barbara ULg; Remacle, Françoise ULg

Poster (2012)

Palladium nanostructures are widely used as catalyst of many organic reactions1 and present intriguing and controversial magnetic properties. Since the direct experimental determination of ground state ... [more ▼]

Palladium nanostructures are widely used as catalyst of many organic reactions1 and present intriguing and controversial magnetic properties. Since the direct experimental determination of ground state structure for small transition metal clusters is difficult, theory and first-principles calculations, such as density functional theory (DFT), have been used extensively to reveal the interplay between geometric and electronic structure. We present a theoretical study at the DFT/B3LYP level on three selected geometric arrangements for the Pd13 cluster with particular emphasis on the effects of thiolate and phosphine based ligands on their magneto-structural properties. The results point out that the interactions with ligands can change the relative stability of different structures of the metallic core, leading to the stabilization of the more compact icosahedral shape with respect to other bi-layer structures which are more stable in the free standing cluster. Beyond this structural evolution, the interactions with the ligand shell strongly modify also the electronic and magnetic properties of the metal core. In particular, both thiolate and phosphine ligands quench the high spin state that characterized the magnetic ground state of the bare Pd13 cluster, but while the interaction with phosphine quench the magnetic moment completely, the thiol-capped particles retain a permanent magnetic moment even when they are saturated by the ligand molecules. Our study suggests that different ligands can be effectively used to tune electronic and magnetic properties of Pd nanoparticles in view of the design and experimental realization of logic nano devices and intelligent sensors. [less ▲]

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See detailQuerying a quasi-classical Oracle: one bit function identification problem implemented in a single atom transistor
Fresch, Barbara ULg; Verduijn, J.; Mol, J. A. et al

in Europhysics Letters [=EPL] (2012), 99(2), 28004

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See detailMagnetostructural effects in ligand stabilized Pd13 clusters: a density functional theory study
Fresch, Barbara ULg; Boyen, H.-G.; Remacle, Françoise ULg

in Nanoscale (2012), 4(14), 4138-4147

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See detailInterplay of structural and electronic stabilizing factors in neutral and cationic phosphine protected Au13 clusters
Fresch, Barbara ULg; Hanozin, Emeline ULg; Dufour, Fabien ULg et al

in European Physical Journal D -- Atoms, Molecules, Clusters & Optical Physics (2012), 66(12),

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See detailBeyond quantum microcanonical statistics
Fresch, Barbara ULg; Moro, Giorgio J.

in Journal of Chemical Physics (2011), 134

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See detailEmergence of Equilibrium Thermodynamic Properties in Quantum Pure States I. Theory.
Fresch, Barbara ULg; Moro, Giorgio J.

in Journal of Chemical Physics (2010), 133

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See detailEmergence of equilibrium thermodynamic properties in quantum pure states. II. Analysis of a spin model system
Fresch, Barbara ULg; Moro, Giorgio J.

in Journal of Chemical Physics (2010), 133

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See detailTypicality and Fluctuations: A different way to look at Quantum Statistical Mechanics
Fresch, Barbara ULg

Scientific conference (2009, October 28)

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See detailTypicality in Ensembles of Quantum States: Monte Carlo Sampling versus Analytical Approximations
Fresch, Barbara ULg; Moro, Giorgio J.

in Journal of Physical Chemistry A (2009), 113

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