Enhanced thermoelectric power and electronic correlations in RuSe2

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...

Full description

Bibliographic Details
Main Authors: Kefeng Wang, Aifeng Wang, A. Tomic, Limin Wang, A. M. Milinda Abeykoon, E. Dooryhee, S. J. L. Billinge, C. Petrovic
Format: Article
Language:English
Published: AIP Publishing LLC 2015-04-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4913919
id doaj-art-8543aa7e0e82442c93ed31dc4bab8577
recordtype oai_dc
spelling doaj-art-8543aa7e0e82442c93ed31dc4bab85772018-09-02T17:45:54ZengAIP 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
institution Open Data Bank
collection Open Access Journals
building Directory of Open Access Journals
language English
format Article
author Kefeng Wang
Aifeng Wang
A. Tomic
Limin Wang
A. M. Milinda Abeykoon
E. Dooryhee
S. J. L. Billinge
C. Petrovic
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
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
title Enhanced thermoelectric power and electronic correlations in RuSe2
title_short 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_sort enhanced thermoelectric power and electronic correlations in ruse2
publisher AIP Publishing LLC
series APL Materials
issn 2166-532X
publishDate 2015-04-01
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.
url http://dx.doi.org/10.1063/1.4913919
_version_ 1612632446209097728

Similar Items