We have measured quantum transport through an individual Fe4 single-molecule magnet embedded in a three-terminal device geometry. The characteristic zero-field splittings of adjacent charge states and their magnetic field evolution are observed in inelastic tunneling spectroscopy. We demonstrate that the molecule retains its magnetic properties and, moreover, that the magnetic anisotropy is significantly enhanced by reversible electron addition/subtraction controlled with the gate voltage. Single-molecule magnetism can thus be electrically controlled.
Electric-Field Controlled Magnetic Anisotropy in a Single Molecule / A. S., Zyazin; J. W. G., van den Berg; E. A., Osorio; H. S. J., van der Zant; N. P., Konstantinidis; M., Leijnse; M. R., Wegewijs; F., May; W., Hofstetter; Danieli, Chiara; Cornia, Andrea. - In: NANO LETTERS. - ISSN 1530-6984. - STAMPA. - 10:9(2010), pp. 3307-3311. [10.1021/nl1009603]
Electric-Field Controlled Magnetic Anisotropy in a Single Molecule
DANIELI, Chiara;CORNIA, Andrea
2010
Abstract
We have measured quantum transport through an individual Fe4 single-molecule magnet embedded in a three-terminal device geometry. The characteristic zero-field splittings of adjacent charge states and their magnetic field evolution are observed in inelastic tunneling spectroscopy. We demonstrate that the molecule retains its magnetic properties and, moreover, that the magnetic anisotropy is significantly enhanced by reversible electron addition/subtraction controlled with the gate voltage. Single-molecule magnetism can thus be electrically controlled.
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