Abstract
A self-assembled iron(II) phthalocyanine single layer adsorbed on the topological insulator was investigated by spin-polarized scanning tunneling microscopy and density functional theory calculations. Although the molecule-substrate interaction is dominated by a relatively weak van der Waals force, the local density of states of Fe was found to strongly depend on the adsorption sites, resulting in a supermolecular lattice. Spin-polarized measurements show that the magnetic moment of iron(II) phthalocyanine persists with an in-plane magnetic easy axis, which was further confirmed by density functional calculations.
- Received 3 August 2014
- Revised 19 October 2014
DOI:https://doi.org/10.1103/PhysRevB.90.180408
©2014 American Physical Society