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Induced spin polarization of copper spin 1/2 molecular layers
Peter Dowben Publications
  • David Wisbey, University of Nebraska-Lincoln
  • Ning Wu, University of Nebraska-Lincoln
  • Danqin Feng, University of Nebraska-Lincoln
  • A. N. Caruso, University of Missouri – Kansas City,
  • J. Belot, University of Nebraska-Lincoln
  • Yaroslav B. Losovyj, Louisiana State University at Baton Rouge
  • Elio Vescovo, Brookhaven National Laboratory
  • Peter A. Dowben, University of Nebraska-Lincoln
Date of this Version
1-1-2009
Disciplines
Comments

Published in Physics Letters A 373 (2009) 484–488.

Abstract
Thin films of the metal organic molecule bis(4-cyano-2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II) (or Cu(CNdpm)2), (C24H36N2O4Cu, Cu(II)), deposited on ferromagnetic Co(111) at 40 K, exhibit a finite electron spin polarization. The spin polarization magnitude and sign for Cu(CNdpm)2 deposited on Co(111) is coverage dependent, but deviates from the mean field expectations for a simple paramagnet on a ferromagnetic substrate. The spin asymmetry is seen to favor select molecular orbitals, consistent with the predicted single molecule density of states. The overlayer polarization observed indicates a strong influence of the ferromagnetic Co(111) substrate and some extra-molecular magnetic coupling.
Citation Information
David Wisbey, Ning Wu, Danqin Feng, A. N. Caruso, et al.. "Induced spin polarization of copper spin 1/2 molecular layers" (2009)
Available at: http://works.bepress.com/ning_wu/19/