title: Frequency domain Fourier transform THz-EPR on single molecule magnets using coherent synchrotron radiation.
abstract: Frequency domain Fourier transform THz electron paramagnetic resonance (FD-FT THz-EPR) based on coherent synchrotron radiation (CSR) is presented as a novel tool to ascertain very large zero field splittings in transition metal ion complexes. A description of the FD-FT THz-EPR at the BESSY II storage ring providing CSR in a frequency range from 5 cm(-1) up to 40 cm(-1) at external magnetic fields from -10 T to +10 T is given together with first measurements on the single molecule magnet Mn(12)Ac where we studied DeltaM(S) = +/-1 spin transition energies as a function of the external magnetic field and temperature.
authors.affiliation: Helmholtz-Zentrum Berlin für Materialien und Energie, Institut für Silizium-Photovoltaik, Kekuléstr. 5, D-12489 Berlin, Germany. alexander.schnegg@helmholtz-berlin.de
authors.forename: Alexander
authors.initials: A
authors.lastname: Schnegg
authors.forename: Jan
authors.initials: J
authors.lastname: Behrends
authors.forename: Klaus
authors.initials: K
authors.lastname: Lips
authors.forename: Robert
authors.initials: R
authors.lastname: Bittl
authors.forename: Karsten
authors.initials: K
authors.lastname: Holldack