Affiliation: | a Martin-Luther Universität Halle-Wittenberg, FB Physik, Friedemann-Bach-Platz 6, 06108, Halle, Germany b Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, CEP 13560-970, São Carlos-SP, Brazil c Department of Chemistry, Technion––Israel Institute of Technology, Haifa 32000, Israel |