Esser M, Deringer VL, Wuttig M, Dronskowski RFebruary 2015Journal article Journal:Solid State CommunicationsVolume:203, Elsevier, pp.31 - 34No abstract availableKeywords:34 Chemical Sciences , 51 Physical Sciences , 5104 Condensed Matter Physics DOI10.1016/j.ssc.2014.11.008