<first] <prev] [Phuan Ong (Princeton Univ.) 15] [NEXT> [last>
The temperature dependence of the Nernst coefficient v = E_y/B|grad T| in LSCO (0.17 < x < 0.05) determined from the weak-field slope of the E_y vs. H curves shown above. Note that v is typically 1-2 microV/KT at Tc, so this graph emphasizes the high-temperature tail of the anomalous Nernst signal (< 100 nV/KT). The anomalous signal merges into a nearly T-independent background value that we identify with the normal-state charge carriers vN (horizontal red lines). We identify the anomalous part with the signal from vortex-like excitations that survive to temperatures significantly above the critical temperature identified from the Meissner effect Tc. [Xu et al. Nature 2000].

<first] <prev] [Phuan Ong (Princeton Univ.) 15] [NEXT> [last>