Ruthenium oxide as a thermoelectric material: unconventional thermoelectric properties of Li sub(2)RuO sub(3)
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 cor...
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| Veröffentlicht in: | Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2015-01, Vol.3 (40), p.10430-10435 |
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| container_end_page | 10435 |
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| container_issue | 40 |
| container_start_page | 10430 |
| container_title | Journal of materials chemistry. C, Materials for optical and electronic devices |
| container_volume | 3 |
| creator | Terasaki, Ichiro Abe, Shuhei Yasui, Yukio Okazaki, Ryuji Taniguchi, Hiroki |
| description | 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 Li sub(2)RuO sub(3) 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. |
| doi_str_mv | 10.1039/c5tc01619c |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 2050-7526 |
| ispartof | Journal of materials chemistry. C, Materials for optical and electronic devices, 2015-01, Vol.3 (40), p.10430-10435 |
| issn | 2050-7526 2050-7534 |
| language | eng |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Charge Correlation Honeycomb Orbitals Order disorder Ruthenium oxide Thermoelectric materials Thermoelectricity |
| title | Ruthenium oxide as a thermoelectric material: unconventional thermoelectric properties of Li sub(2)RuO sub(3) |
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