Spin-state dependent conductance switching in single molecule-graphene junctions.

@article{Burzur2018SpinstateDC,
  title={Spin-state dependent conductance switching in single molecule-graphene junctions.},
  author={Enrique Burzur{\'i} and Amador Garc{\'i}a-Fuente and V{\'i}ctor Manuel Garc{\'i}a-Su{\'a}rez and Kuppusamy Senthil Kumar and Mario Ruben and Jaime Ferrer and Herre S. J. van der Zant},
  journal={Nanoscale},
  year={2018},
  volume={10 17},
  pages={
          7905-7911
        }
}
Spin-crossover (SCO) molecules are versatile magnetic switches with applications in molecular electronics and spintronics. Downscaling devices to the single-molecule level remains, however, a challenging task since the switching mechanism in bulk is mediated by cooperative intermolecular interactions. Here, we report on electron transport through individual Fe-SCO molecules coupled to few-layer graphene electrodes via π-π stacking. We observe a distinct bistability in the conductance of the… 
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References

SHOWING 1-10 OF 62 REFERENCES
Stretching-Induced Conductance Increase in a Spin-Crossover Molecule.
TLDR
Current-voltage measurements at cryogenic temperatures support the hypothesized switching mechanism based on the spin-crossover behavior and predict a stretching-induced spin transition in the Fe(II)-complex and a larger transmission for the high-spin configuration.
Phase Transitions in Spin-Crossover Thin Films Probed by Graphene Transport Measurements.
TLDR
It is demonstrated that thermally induced spin-state switching of spin-crossover nanoparticle thin films can be monitored through the electrical transport properties of graphene lying underneath the films, and this graphene sensor approach can be applied to a wide class of systems with tunable electronic polarizabilities.
Mechanically-Controlled Reversible Spin Crossover of Single Fe-Porphyrin Molecules.
TLDR
Spin-crossover molecules are thought to be ideal systems for molecular spintronics when SCO can be precisely controlled at the single-molecule level, and it is found that the junctions feature a zero-bias resonance in molecular conductance associated with the Fe spin center.
Room-temperature electrical addressing of a bistable spin-crossover molecular system.
TLDR
A switchable molecular device made by contacting individual nanoparticles based on spin-crossover molecules between nanometer-spaced electrodes is reported, confirming the existence of hysteretic spin crossover effects in a single nanoobject.
Single-Molecule Spin Switch Based on Voltage-Triggered Distortion of the Coordination Sphere.
TLDR
A new single-molecule-switching concept based on the coordination-sphere-dependent spin state of Fe(II) species with increasing numbers of junctions displaying voltage-dependent bistabilities upon increasing the Fe( II) complexes' intrinsic dipole moments is reported.
Robust and Selective Switching of an FeIII Spin-Crossover Compound on Cu2N/Cu(100) with Memristance Behavior.
TLDR
The reversible and selective nature of the switching is used to build a two-molecule memory and reveals that all Fe(pap)2 molecules are initially in their high-spin state.
Observation and electric current control of a local spin in a single-molecule magnet
TLDR
By applying controlled current pulses, the upper Pc ligand in TbPc2 is rotated, leading to the disappearance and reappearance of the Kondo resonance, and reversible switching between two stable ligand orientations by applying a current pulse is made possible.
Electrical control over the Fe(II) spin crossover in a single molecule: Theory and experiment
We report on theoretical and experimental work involving a particular molecular switch, an [FeII(L)2]2+ complex, that utilizes a spin transition (“crossover”). The hallmark of this transition is a
Robust spin crossover and memristance across a single molecule.
TLDR
It is shown that iron-based spin-crossover molecules can be individually and reproducibly switched between a combined high-spin, high-conduction state and a low- spin, low-Conduction state, provided the individual molecule is decoupled from a metallic substrate by a thin insulating layer.
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