1994/05/11 by Daniel Koller, Michael C. Martin, Laszlo Mihaly
Physics and Astronomy · #cond-mat
published as Mol. Cryst. Liq. Cryst. 256, 275 (1994) · To be published in Mol. Cryst. Liq. Cryst., Procceding of 1994 Salt Lake City conference on Fullerenes. Postscript file including figures. SLCDOPE
arxiv created 1994/05/11 · arxiv updated 2009/11/30
Optical measurements on doped C60 films provide evidence for a transition from a high temperature conducting phase to a low temperature insulating phase in quenched Rb1C60 and K1C60 compounds, while Cs1C60 did not exhibit this behavior. For slow cooled samples our study confirms earlier results indicating phase separation of K1C60 to K3C60 and C60, and the formation of a new Rb1C60 phase at low temperatures. Upon slow cooling Cs1C60 behaves similar to Rb1C60.