Europium magnetic anisotropy

Although there always seemed to be theoretical unanimity on the existence of magnetochiral anisotropy, it was not observed experimentally until a few years ago. The most strongly chiral optical transitions reported in the literature are the 5D0 —> 7 Fij2 luminescent transitions in tris(3-trifluoroacetyl- -camphorato) europium(III) complexes (Eu(( )tfc)3). These transitions also have a considerable MCD. Such complexes are therefore likely candidates to show a significant magnetochiral effect. The experiment performed by us to observe MChA measures the difference in luminescence intensity in the directions parallel and antiparallel to B [17,18]. In order to increase sensitivity, the magnetic field is alternated and the intensity difference 1B k is phase-sensitively detected by a... 

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