Thermopower Enhancement from Engineering the Na0.7CoO2 Interacting Fermiology via Fe Doping
Joint Authors
Xie, Wenjie
Weidenkaff, Anke
Richter, Raphael
Shopova, Denitsa
Lechermann, Frank
Source
Advances in Condensed Matter Physics
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-23
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The sodium cobaltate system NaxCoO2 is a prominent representant of strongly correlated materials with promising thermoelectric response.
In a combined theoretical and experimental study we show that, by doping the Co site of the compound at x=0.7 with iron, a further increase of the Seebeck coefficient is achieved.
The Fe defects give rise to effective hole doping in the high-thermopower region of larger sodium content x.
Originally filled hole pockets in the angular-resolved spectral function of the material shift to low energy when introducing Fe, leading to a multisheet interacting Fermi surface.
Because of the higher sensitivity of correlated materials to doping, introducing adequate substitutional defects is thus a promising route to manipulate their thermopower.
American Psychological Association (APA)
Richter, Raphael& Shopova, Denitsa& Xie, Wenjie& Weidenkaff, Anke& Lechermann, Frank. 2018. Thermopower Enhancement from Engineering the Na0.7CoO2 Interacting Fermiology via Fe Doping. Advances in Condensed Matter Physics،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1117375
Modern Language Association (MLA)
Richter, Raphael…[et al.]. Thermopower Enhancement from Engineering the Na0.7CoO2 Interacting Fermiology via Fe Doping. Advances in Condensed Matter Physics No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1117375
American Medical Association (AMA)
Richter, Raphael& Shopova, Denitsa& Xie, Wenjie& Weidenkaff, Anke& Lechermann, Frank. Thermopower Enhancement from Engineering the Na0.7CoO2 Interacting Fermiology via Fe Doping. Advances in Condensed Matter Physics. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1117375
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117375