Effects of spin doping and spin injection in the luminescence and vibrational spectrum of C{sub 60}
- School of Physics and Astronomy, University of Leeds, LS2 9JT W. Yorkshire (United Kingdom)
- Department of Physics, University of York, YO10 5DD N. Yorkshire (United Kingdom)
We have studied the Raman spectrum and photoemission of hybrid magneto-fullerene devices. For C{sub 60} layers on cobalt, the spin polarized electron transfer shifts the photoemission energy, reducing the zero phonon contribution. The total luminescence of hybrid devices can be controlled via spin injection from magnetic electrodes, with changes of the order of 10%–20% at room temperature. Spin polarised currents alter as well the Raman spectrum of the molecules, enhancing some modes by a factor 5 while shifting others by several wavenumbers due to a spin-dependent hopping time and/or enhanced intermolecular interactions. These results can be used to measure spin polarisation in molecules or to fabricate magneto-optic and magneto-vibrational devices.
- OSTI ID:
- 22311087
- Journal Information:
- Applied Physics Letters, Vol. 105, Issue 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRODES
ELECTRON TRANSFER
FULLERENES
HYBRID SYSTEMS
INJECTION
INTERACTIONS
LAYERS
LUMINESCENCE
MAGNETIC PROPERTIES
MAGNETO-OPTICAL EFFECTS
MOLECULES
OSCILLATIONS
PHOTOEMISSION
POLARIZATION
RAMAN SPECTRA
SPIN
SPIN ORIENTATION
TEMPERATURE RANGE 0273-0400 K