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This article reports a study of the thermal relaxation in cast films of two polyfluorene based polymers, poly{9,9-dioctylfluorenyl-2,7-diyl} (BE329) and poly{(9,9-dioctyl-2,7-divinylene-fluorenylene)-alt-co-[2-methoxy-5-(2-ethyl-hexyloxy)-1,4-phenylene]} (GE108). The relaxation processes were identified by Dynamical Mechanical Thermal Analysis (DMTA), which revealed three processes in both samples:...
Single crystals of La 1-x Sr x MnO 3 (0=<x=<0.35) and Pr 0.67 Ca 0.33 MnO 3 were studied by various techniques including SQUID magnetometry, resistivity and 55 Mn nuclear magnetic resonance (NMR). In an untwinned LaMnO 3 single crystal, the magnetization versus field at low T exhibits...
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