Electron-Ion Interference and Onsager Reciprocity in Mixed Ionic-Electronic Transport in TiO2

Doh-Kwon Lee and Han-Ill Yoo
Phys. Rev. Lett. 97, 255901 – Published 19 December 2006

Abstract

Onsager’s reciprocity theorem has been extensively discussed for fluid systems and its validity generally accepted. The application of the theorem to solid state, however, is not always transparent due to additional complications that have no counterparts in fluids, and its validity has not been so exhaustively examined experimentally either. Here we show that in the phenomenon of mixed ionic-electronic conduction in TiO2 (rutile), the theorem is verified experimentally, and the Onsager cross coefficient can be even larger than a direct one, contrary to the conventional belief.

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  • Received 26 July 2006

DOI:https://doi.org/10.1103/PhysRevLett.97.255901

©2006 American Physical Society

Authors & Affiliations

Doh-Kwon Lee and Han-Ill Yoo*

  • School of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea

  • *Author to whom correspondence should be addressed. Electronic mail: hiyoo@plaza.snu.ac.kr

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Issue

Vol. 97, Iss. 25 — 22 December 2006

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