Journal Article

PreJuSER-10758

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Spin- and Energy-Dependent Tunneling through a Single Molecule with Intramolecular Spatial Resolution

Brede, J. ; Atodiresei, N.FZJ* ; Kuck, S. ; Lazic, P. ; Caciuc, V.FZJ* ; Morikawa, Y. ; Hoffmann, G. ; Blügel, S.FZJ* ; Wiesendanger, R.

2010
APS College Park, Md.

This record in other databases:  

Please use a persistent id in citations: http://hdl.handle.net/2128/7245  doi:10.1103/PhysRevLett.105.047204

Abstract: We investigate the spin- and energy-dependent tunneling through a single organic molecule (CoPc) adsorbed on a ferromagnetic Fe thin film, spatially resolved by low-temperature spin-polarized scanning tunneling microscopy. Interestingly, the metal ion as well as the organic ligand show a significant spin dependence of tunneling current flow. State-of-the-art ab initio calculations including also van der Waals interactions reveal a strong hybridization of molecular orbitals and substrate 3d states. The molecule is anionic due to a transfer of one electron, resulting in a nonmagnetic (S = 0) state. Nevertheless, tunneling through the molecule exhibits a pronounced spin dependence due to spin-split molecule-surface hybrid states.

Keyword(s): J

Note: This work is funded by the DFG (SFB 668-A5, SPP1243 and GrK 611), the JSPS, Alexander von Humboldt foundation, the EU project SpiDME. The computations were performed on JUROPA and JUGENE supercomputers at the Julich Supercomputing Centre, Forschungszentrum Julich (Germany).

---

Contributing Institute(s):

1. Quanten-Theorie der Materialien (IFF-1)
2. Quanten-Theorie der Materialien (IAS-1)
3. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)
4. Jülich Aachen Research Alliance - High-Performance Computing (JARA-HPC)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2010

---

Database coverage:
;

---