%0 Journal Article %T Magnetic circular dichroism instrumentation at LNLS %A Fonseca %A P. T. %A Castro %A A. R. B. de %A Tosin %A G. %A Citadini %A J. F. %A Bas¨Ēlio %A R. %J Brazilian Journal of Physics %D 2007 %I Scientific Electronic Library Online %R 10.1590/S0103-97332007000700017 %X we describe the high-field (1.0 t) ultra high vacuum (1.6 10 - 9 mbar) controllable temperature (8 ok up to > 350ok) mcd setup designed and built at lnls. we show, for nanocrystals of hematite a-fe2o3, illustrative results obtained at room and at low temperature. %K mcd %K dichroism %K hematite %K nanocrystal %K spectroscopy %K synchrotron light. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-97332007000700017&lng=en&nrm=iso&tlng=en