Girovsky, Jan and Tarafder, Kartick and Waeckerlin, Christian and Nowakowski, Jan and Siewert, Dorota and Haehlen, Tatjana and Waeckerlin, Aneliia and Kleibert, Armin and Ballav, Nirmalya and Jung, Thomas A. and Oppeneer, Peter M.. (2014) Antiferromagnetic coupling of Cr-porphyrin to a bare Co substrate. Physical Review B, 90 (22). 220404(R).
![[img]](https://edoc-vmtest.ub.unibas.ch/style/images/fileicons/application_pdf.png) |
PDF
- Published Version
1046Kb |
Official URL: http://edoc.unibas.ch/43496/
Downloads: Statistics Overview
Abstract
We report the discovery of an antiferromagnetic coupling of the magnetic moment of chromium(II) tetraphenyl-porphyrin (CrTPP) molecules to the magnetization of the clean ferromagnetic Co(001) substrate. We assign this unusual molecule-substrate exchange coupling to the less than half-filled chromium 3d orbitals interacting with Co valence band electrons via porphyrin-ligand molecular orbitals. X-ray magnetic circular dichroism, x-ray photoelectron spectroscopy, and scanning tunneling microscopy are combined with DFT+U calculations and provide evidence for a surprising type of antiferromagnetic 90∘ indirect magnetic exchange coupling.
| Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik 05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer) |
|---|---|
| UniBasel Contributors: | Jung, Thomas A. |
| Item Type: | Article, refereed |
| Article Subtype: | Research Article |
| Publisher: | American Physical Society |
| ISSN: | 2469-9950 |
| e-ISSN: | 2469-9969 |
| Note: | Publication type according to Uni Basel Research Database: Journal article |
| Language: | English |
| Identification Number: | |
| edoc DOI: | |
| Last Modified: | 10 May 2017 10:33 |
| Deposited On: | 03 Nov 2016 07:48 |
Repository Staff Only: item control page