Issue 40, 2015

Ruthenium oxide as a thermoelectric material: unconventional thermoelectric properties of Li2RuO3

Abstract

Ruthenium oxides are typical strongly correlated electron systems, where various ordering phenomena occur through delicate interplay among the charge, spin and orbital degrees of freedom. We propose that the thermoelectric properties can be improved by controlling such ordered phases in strongly correlated electron systems. Honeycomb Ru oxide Li2RuO3 is a prime example that exhibits a unique phase transition at 540 K with a charge gap. We have found that the ordered state can be modified by substituting the Ru site partially, and succeeded in increasing the thermopower by keeping the resistivity around the same value to enhance the power factor substantially.

Graphical abstract: Ruthenium oxide as a thermoelectric material: unconventional thermoelectric properties of Li2RuO3

Article information

Article type
Paper
Submitted
03 ဇွန် 2015
Accepted
19 ဇွန် 2015
First published
19 ဇွန် 2015

J. Mater. Chem. C, 2015,3, 10430-10435

Ruthenium oxide as a thermoelectric material: unconventional thermoelectric properties of Li2RuO3

I. Terasaki, S. Abe, Y. Yasui, R. Okazaki and H. Taniguchi, J. Mater. Chem. C, 2015, 3, 10430 DOI: 10.1039/C5TC01619C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements