Positive Seebeck Coefficient in Highly Doped La2-xSrxCuO4 (x=0.33); Its Origin and Implication
| Autor: | Hao Jin, Alessandro Narduzzo, Kamran Behnia, Hidenori Takagi, Nigel E. Hussey, Minoru Nohara |
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| Přispěvatelé: | Laboratoire de Physique et d'Etude des Matériaux (UMR 8213) (LPEM), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), University of Bristol [Bristol], Okayama University, Max Planck Institute for Solid State Research, Max-Planck-Gesellschaft, The University of Tokyo (UTokyo), Radboud university [Nijmegen] |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
FOS: Physical sciences General Physics and Astronomy Correlated Electron Systems Curvature 01 natural sciences 010305 fluids & plasmas Superconductivity (cond-mat.supr-con) Condensed Matter - Strongly Correlated Electrons symbols.namesake Condensed Matter::Materials Science Seebeck coefficient Condensed Matter::Superconductivity 0103 physical sciences Thermoelectric effect Nernst equation 010306 general physics [PHYS]Physics [physics] Condensed Matter - Materials Science Strongly Correlated Electrons (cond-mat.str-el) Condensed matter physics Condensed Matter - Superconductivity Doping Materials Science (cond-mat.mtrl-sci) Fermi surface Computer Science::Other symbols Condensed Matter::Strongly Correlated Electrons |
| Zdroj: | Journal of the Physical Society of Japan Journal of the Physical Society of Japan, Physical Society of Japan 日本物理学会, 2021, 90 (5), pp.053702. ⟨10.7566/JPSJ.90.053702⟩ Journal of Physical Society of Japan, 90 Journal of Physical Society of Japan, 90, 5 |
| ISSN: | 0031-9015 |
| DOI: | 10.7566/JPSJ.90.053702 |
| Popis: | We present a study of the thermoelectric (Seebeck and Nernst) response in heavily overdoped, non-superconducting La$_{1.67}$Sr$_{0.33}$CuO$_4$. In spite of the electron-like curvature of the Fermi surface, the Seebeck coefficient is positive at low temperatures. Such a feature, previously observed in copper, silver, gold and lithium, is caused by a non-trivial energy dependence of the scattering time. We argue that this feature implies a strong asymmetry between the lifetime of occupied and unoccupied states along the zone diagonals and such an electron-hole asymmetry impedes formation of Cooper pairs along the nodal direction in the superconducting ground state emerging at lower doping levels. Comment: 5 pages, 3 figures |
| Databáze: | OpenAIRE |
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