Frequency domain Fourier transform THz-EPR on single molecule magnets using coherent synchrotron radiation.
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.
Schnegg
Alexander
A
Helmholtz-Zentrum Berlin für Materialien und Energie, Institut für Silizium-Photovoltaik, Kekuléstr. 5, D-12489 Berlin, Germany. alexander.schnegg@helmholtz-berlin.de
Behrends
Jan
J
Lips
Klaus
K
Bittl
Robert
R
Holldack
Karsten
K