Induced spin polarization of copper spin 1/2 molecular layersPeter Dowben Publications
Date of this Version1-1-2009
AbstractThin 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 InformationDavid 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/