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M. Ruben
Research Unit Chair
mario rubenMii4∂kit edu

Karlsruhe Institute of Technology
Institute of Nanotechnology & Institute of Inorganic Chemistry
Postfach 3640
D -76021 Karlsruhe

+49 (0)721 608 26781 (voice)
+49 (0)721 608 28989 (secretary Mrs. Schuetze)


Prof. (conv.) Dr. Mario Ruben

Université de Strasbourg
IPCMS Strasbourg
23 rue du Loess
BP 43
F-67034 Strasbourg CEDEX 2
+33 (0)3 88 10 71 47 (voice)

Molecular Materials

The research activities of the Ruben-group at the Institute of Nanotechnology (INT) deal with the design of functional nano-systems by state-of-the-art organic/inorganic synthesis and supramolecular self-assembly techniques. At the INT, we are thematically organised in the interdisciplinary research topics of Functional Molecules, Molecular Electronics and Carbon-based Nanostructures.


Video: Spin-phonon coupling in a single-molecule resonator

Nature Nanotechnology 2013


Ir(ppy)3 as quantum transducer
Ir(ppy)3 as Quantum Transducer for Plasmon Generation

Controlling light at the nanoscale by electrical fields requires objects, in which electro-magnetic properties are responsive to gating fields. In two recent publications it was shown that molecules fulfil this requirement and act as such quantum transducers. This article was presented as research highlight in Nature Photonics.
Nano Letters 2013

Nano Letters 2014
Science 2014 image
Electrically driven nuclear spin resonance in single-molecule magnets A recent publication in Science shows how coherent single nuclear-spin manipulation using electric fields only can be achieved. This quantum-mechanical process is present in all nuclear spin systems and uses of the hyperfine Stark effect as a magnetic field transducer at the atomic level. Science June 2014
Spin-phonon coupling in a single-molecule resonator


A single TbPc2 molecule and a carbon nanotube interact electro-mechanically as quantum objects.

Nature News and Views by Richard Winpenny.

Nat. Nanotechnol. 2013
Switching the spin state of a coupled spin-pair

The spin state of a coupled spin-system can be switched electronically.

Nat. Nanotechnol. 2013
Nuclear Spin Read-out in Nature 2012
First Time Electronic Read-out of Nuclear Spin States For the first time nuclear spin states could be read out electronically by integrating single quantum magnets into circuits. Long nuclear spin lifetimes (tens of seconds) and exceptional relaxation characteristics at the single-atom scale open the way to a completely new device world, into which quantum logics may be implemented. Nat. Nanotech. News and Views by Herre van der Zant.
Nuclear Spin Read-out in Nature 2012
Spin-Split in Nat. Commun. 2012
Real-space observation of spin-split molecular orbitals in adsorbed SMMs

In collaboration with the group of R. Wiesendanger we report the first direct real-space images of spin-split molecular orbitals at a TbPc2-Co(111) spinterface.

Spin Split in Nat. Commun. 2012