1. Instituto de Física, Universidade Federal de Ouro Preto, CEP 35400-000 Ouro Preto, Minas Gerais, Brazil
2. Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria
3. Division of Physical Chemistry, Lund University, SE-221 00 Lund, Sweden
4. School of Chemical Technology, Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar 751024, India