Affiliation: | 1. Fraunhofer Institute for Mechanics of Materials (IWM), Walter-Hülse-Str. 1, D-06120 Halle, Germany;2. Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal;3. Institute of Physics, Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 3, D-06120 Halle, Germany |