Electric field controlled magnetic anisotropy in a single molecule.
We have measured quantum transport through an individual Fe(4) 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.
Zyazin
Alexander S
AS
Kavli Institute of Nanoscience, Delft University of Technology, PO Box 5046, 2600 GA Delft, The Netherlands. a.zyazin@tudelft.nl
van den Berg
Johan W G
JW
Osorio
Edgar A
EA
van der Zant
Herre S J
HS
Konstantinidis
Nikolaos P
NP
Leijnse
Martin
M
Wegewijs
Maarten R
MR
May
Falk
F
Hofstetter
Walter
W
Danieli
Chiara
C
Cornia
Andrea
A