Non-equilibrium spin-crossover in copper phthalocyanine
arXiv:1507.05504 · doi:10.1103/PhysRevB.93.121406
Abstract
We demonstrate the tip induced control of the spin state of copper phthalocyanine (CuPc) on an insulator coated substrate. Accounting for electronic correlations, we find that, under the condition of energetic proximity of neutral excited states to the anionic groundstate, the system can undergo a population inversion towards these excited states. The resulting state of the system is accompanied by a change in the total spin quantum number. Experimental signatures of the crossover are the appearance of additional nodal planes in the topographical STM images as well as a strong suppression of the current near the center of the molecule. The robustness of the effect against moderate charge conserving relaxation processes has also been tested.
5 pages, 4 figures; added supplemental material (+ 5 pages)
References in corpus (10)
- Franck-Condon blockade and giant Fano factors in transport through single molecules
- Large tunable image-charge effects in single-molecule junctions
- Electronic and magnetic properties of molecule-metal interfaces: transition metal phthalocyanines adsorbed on Ag(100)
- Electric Field Controlled Magnetic Anisotropy in a Single Molecule
- Protection of excited spin states by a superconducting energy gap
- A benzene interference single-electron transistor
- Gating a single-molecule transistor with individual atoms
- Topographical fingerprints of many-body interference blocking in STM junctions on thin insulating films
- Visualizing electron correlation by means of ab-initio scanning tunneling spectroscopy images of single molecules
- Proposed alteration of images of molecular orbitals obtained using a scanning tunnelling microscope as a probe of electron correlation
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