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Statut |
Confirmé |
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Série |
SEM-BESSON |
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Domaines |
cond-mat |
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Date |
Lundi 2 Mai 2011 |
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Heure |
10:30 |
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Institut |
IMPMC |
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Salle |
4ème étage, Tour 23-24, Salle 10, Université P. et M. Curie, 4, Place Jussieu |
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Nom de l'orateur |
Terasaki |
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Prenom de l'orateur |
Ichiro |
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Addresse email de l'orateur |
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Institution de l'orateur |
Department of Physics, Nagoya University , Nagoya, Japan |
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Titre |
Spin-state-related transport in cobalt oxides |
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Résumé |
As is well known, a trivalent cobalt ion Co^{3+} can take three spin states, so-called the low-, intermediate-, and high-spin states. The spin states undergo a transition or crossover in some cobalt oxides, which simultaneously change their transport properties as well as the magnetic properties.
In this talk, I will show how the spin state modifies the resistivity and thermopower in doped La(Co,Rh)O_3 and Sr_3YCo_4O_10.5.
Part of my talk is published as listed below, and some new unpublished results will also be discussed.
References :
Terasaki et al., Materials 3 (2010) 786-799
Nakao et al., J. Phys. Soc. Jpn. 80 (2011) 023711
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
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