Dresden 2014 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 6: Symposium SYMO: Magnetic/organic interfaces and molecular magnetism

HL 6.4: Hauptvortrag

Montag, 31. März 2014, 11:15–11:45, HSZ 02

Interfacing single-molecule magnets with metals — •Andrea Cornia1, Valeria Lanzilotto2, Luigi Malavolti2, Matteo Mannini2, Mauro Perfetti2, Luca Rigamonti1, and Roberta Sessoli21Dip. di Scienze Chimiche e Geologiche, Univ. di Modena e Reggio Emilia & INSTM, Modena, Italy — 2Dip. di Chimica U. Schiff, Univ. di Firenze & INSTM, Sesto Fiorentino (FI), Italy

Encoding and manipulating information through the spin degrees of freedom of individual molecules are central challenges in molecular scale electronics. With their large magnetic moment and long spin relaxation time, single molecule magnets (SMMs) are of special importance in this field. The electrical addressing of individual SMMs is now well within reach using scanning probe methods, which require organizing molecules on electrically conductive surfaces [1,2]. Herein we present the latest achievements in the deposition of SMMs on metal substrates, like ultraflat surfaces [3] and nanoparticles [4]. Special emphasis is placed on the design of molecular structures that withstand processing by solution [3,4] or vapour-phase [5,6] methods as well as on chemical strategies for controlling molecular orientation. Rewardingly, these efforts have shown that the distinctive property of SMMs, i.e. slow spin relaxation, can persist in metal-wired molecules [3,4].

[1] S. Loth, et al. Science 2012, 335, 196. [2] A. A. Khajetoorians, et al. Science 2013, 339, 55. [3] M. Mannini, et al. Nature 2010, 468, 417. [4] M. Perfetti, et al. Small 2013, DOI: 10.1002/smll.201301617. [5] L. Rigamonti, et al. Inorg. Chem. 2013, 52, 5897. [6] L. Malavolti, et al. Chem. Commun. 2013, 49, 11506.

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