Budhani, R. C. ; Sullivan, M. C. ; Lobb, C. J. ; Greene, R. L. (2002) Anomalous magnetothermopower in the mixed state of the electron-doped high-Tc superconductors Physical Review B, 66 (5). 052506_1-052506 _4. ISSN 0163-1829
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Official URL: http://prb.aps.org/abstract/PRB/v66/i5/e052506
Related URL: http://dx.doi.org/10.1103/PhysRevB.66.052506
Abstract
We report observation of a peak/minimum in the flux-flow thermoelectric power Sf (H) of underdoped, optimally doped, and overdoped Pr2-xCexCuO4-δepitaxial films. This distinctive feature, seen for the first time in a high-Tc superconductor, comes from a strong vortex contribution to the total thermopower of the system. In as much as the sign of Sf (H) is directly related to the charged state of diffusing quasiparticles and vortices, our observation provides further support for a two-carrier model for charge transport in these cuprates.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 5601 |
| Deposited On: | 19 Oct 2010 11:47 |
| Last Modified: | 23 May 2011 07:17 |
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