<
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
T
c, 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
T
c. [Xu et al. Nature 2000].
<
first
] <
prev
] [Phuan Ong (Princeton Univ.) 15] [
NEXT
> [
last
>