DigitalCommons@University of Nebraska - Lincoln - David Wisbey, Ning Wu, Danqin Feng, Anthony N. Caruso, John Belot, Yaroslav Losovyj, Elio Vescovo, and Peter Dowben: Interface-Induced Spin and Dipole Ordering of the Copper Spin ½ Molecule: Bis(4-cyano-2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II)

Research Papers in Physics and Astronomy

Peter Dowben Publications

Title

Interface-Induced Spin and Dipole Ordering of the Copper Spin ½ Molecule: Bis(4-cyano-2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II)

Authors

David Wisbey, University of Nebraska - Lincoln
Ning Wu, University of Nebraska - Lincoln
Danqin Feng, University of Nebraska - Lincoln
Anthony N. Caruso, North Dakota State University
John Belot
Yaroslav Losovyj
Elio Vescovo
Peter Dowben, University of Nebraska - Lincoln

Document Type

Article

Date of this Version

2008

Comments

Published in J. Phys. Chem. C 2008, 112, 13656–13662.

Abstract

Using light-polarization-dependent angle-resolved photoemission, the metal-organic molecule bis(4-cyano- 2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II) (or Cu(CNdpm)₂, i.e., C₂₄H₃₆N₂O₄Cu, Cu(II)) is observed to adopt a preferential orientation that depends on the film thickness and substrate when adsorbed on Co(111) and Cu(111). In addition, the final-state binding energies change with film thickness, suggesting the substrates affect the screening or charging in the photoemission final state. For Cu(CNdpm)₂ deposited on Co(111), the induced spin polarization was found to depend strongly on the molecular orbital contributions.