Abstract
In an experiment of Howson et al. the temperature dependence of the thermopower of a YBa2Cu3O7-δ single crystal was measured with an oscillating heat source. A sharp peak in the temperature dependence of the thermopower in the vicinity of the critical temperature was observed. In contrast, Ri et al., who used a dc technique, could not observe such a peak. We show that the observation of the peak may be an artifact of the ac measuring technique used by Howson et al.
Original language | English |
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Pages (from-to) | 15322-15323 |
Number of pages | 2 |
Journal | Physical Review B |
Volume | 47 |
Issue number | 22 |
DOIs | |
State | Published - 1993 |
Externally published | Yes |