Enhanced thermoelectric power and electronic correlations in RuSe2
We report the electronic structure, electric and thermal transport properties of Ru1−xIrxSe2 (x ≤ 0.2). RuSe2 is a semiconductor that crystallizes in a cubic pyrite unit cell. The Seebeck coefficient of RuSe2 exceeds −200 μV/K around 730 K. Ir substitution results in the suppression of the resistivi...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2015-04-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/1.4913919 |
| _version_ | 1811335622313377792 |
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| author | Kefeng Wang Aifeng Wang A. Tomic Limin Wang A. M. Milinda Abeykoon E. Dooryhee S. J. L. Billinge C. Petrovic |
| author_facet | Kefeng Wang Aifeng Wang A. Tomic Limin Wang A. M. Milinda Abeykoon E. Dooryhee S. J. L. Billinge C. Petrovic |
| author_sort | Kefeng Wang |
| collection | DOAJ |
| description | We report the electronic structure, electric and thermal transport properties of Ru1−xIrxSe2 (x ≤ 0.2). RuSe2 is a semiconductor that crystallizes in a cubic pyrite unit cell. The Seebeck coefficient of RuSe2 exceeds −200 μV/K around 730 K. Ir substitution results in the suppression of the resistivity and the Seebeck coefficient, suggesting the removal of the peaks in density of states near the Fermi level. Ru0.8Ir0.2Se2 shows a semiconductor-metal crossover at about 30 K. The magnetic field restores the semiconducting behavior. Our results indicate the importance of the electronic correlations in enhanced thermoelectricity of RuSb2. |
| first_indexed | 2024-04-13T17:27:04Z |
| format | Article |
| id | doaj.art-8543aa7e0e82442c93ed31dc4bab8577 |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-04-13T17:27:04Z |
| publishDate | 2015-04-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-8543aa7e0e82442c93ed31dc4bab85772022-12-22T02:37:45ZengAIP Publishing LLCAPL Materials2166-532X2015-04-0134041513041513-710.1063/1.4913919016591APMEnhanced thermoelectric power and electronic correlations in RuSe2Kefeng Wang0Aifeng Wang1A. Tomic2Limin Wang3A. M. Milinda Abeykoon4E. Dooryhee5S. J. L. Billinge6C. Petrovic7Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USACondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USACondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USACondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USAPhoton Sciences Directorate, Brookhaven National Laboratory, Upton, New York 11973, USAPhoton Sciences Directorate, Brookhaven National Laboratory, Upton, New York 11973, USACondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USACondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USAWe report the electronic structure, electric and thermal transport properties of Ru1−xIrxSe2 (x ≤ 0.2). RuSe2 is a semiconductor that crystallizes in a cubic pyrite unit cell. The Seebeck coefficient of RuSe2 exceeds −200 μV/K around 730 K. Ir substitution results in the suppression of the resistivity and the Seebeck coefficient, suggesting the removal of the peaks in density of states near the Fermi level. Ru0.8Ir0.2Se2 shows a semiconductor-metal crossover at about 30 K. The magnetic field restores the semiconducting behavior. Our results indicate the importance of the electronic correlations in enhanced thermoelectricity of RuSb2.http://dx.doi.org/10.1063/1.4913919 |
| spellingShingle | Kefeng Wang Aifeng Wang A. Tomic Limin Wang A. M. Milinda Abeykoon E. Dooryhee S. J. L. Billinge C. Petrovic Enhanced thermoelectric power and electronic correlations in RuSe2 APL Materials |
| title | Enhanced thermoelectric power and electronic correlations in RuSe2 |
| title_full | Enhanced thermoelectric power and electronic correlations in RuSe2 |
| title_fullStr | Enhanced thermoelectric power and electronic correlations in RuSe2 |
| title_full_unstemmed | Enhanced thermoelectric power and electronic correlations in RuSe2 |
| title_short | Enhanced thermoelectric power and electronic correlations in RuSe2 |
| title_sort | enhanced thermoelectric power and electronic correlations in ruse2 |
| url | http://dx.doi.org/10.1063/1.4913919 |
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