1. Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials, Campinas, Sao Paulo, Brazil
2. Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials, Campinas, Sao Paulo, Brazil
3. Departamento de Fisica Aplicada, Instituto de Fisica “Gleb Wataghin,” Universidade Estadual de Campinas, Campinas, Sao Paulo, Brazil
4. SOLEIL Synchrotron, Gif-sur-Yvette, France