Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Electrical and thermal transport properties of natural and synthetic FeAsxS2-x (x ≤ 0.01)

Zuñiga-Puelles, E., Cardoso-Gil, R., Bobnar, M., Veremchuk, I., Heide, G., & Gumeniuk, R. (2021). Electrical and thermal transport properties of natural and synthetic FeAsxS2-x (x ≤ 0.01). Journal of Physics and Chemistry of Solids, 150: 109809, pp. 1-9. doi:10.1016/j.jpcs.2020.109809.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Zeitschriftenartikel

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Zuñiga-Puelles, E.1, Autor           
Cardoso-Gil, R.2, Autor           
Bobnar, M.1, Autor           
Veremchuk, I.3, Autor           
Heide, G.4, Autor
Gumeniuk, R.4, Autor
Affiliations:
1Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
2Raul Cardoso, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863420              
3Igor Veremchuk, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863411              
4External Organizations, ou_persistent22              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: The combined powder X-ray diffraction, microstructural, local and bulk chemical analyses of natural pyrite single crystals from Reiche Zeche, Johangeorgenstadt and Pretzchendorf (Erzgebirge, Saxony, Germany) showed compositions FeAs0.002(1)S1.998(9), FeAs0.004(1)S1.996(9) and FeAs0.005(1)S1.995(9), respectively. The arsenic doping leads to smaller semiconducting energy gaps (Eg ~0.1–0.2 eV) in comparison with binary FeS2 (Eg = 0.96 eV), as well as switching of conduction type mechanism from n-to the p-type. These findings are supported by the measurements of the electrical resistivity and Seebeck coefficient of the synthetic FeAsxS2-x series (maximal As-content x = 0.01 at 773 K). The investigations of sintered FeS2 + MO2 (M = Si, Ti, Zr) composites indicate that some insulating metal oxides as impurities influence less the electrical transport properties of pyrite. All performed studies unambiguously confirmed that p-type conductivity for T gt; 300 K is a hallmark of the ternary As-doped FeAsxS2-x (x ≥ 0.002) pyrites. © 2020

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2021-03-142021-03-14
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1016/j.jpcs.2020.109809
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Journal of Physics and Chemistry of Solids
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Oxford : Pergamon
Seiten: - Band / Heft: 150 Artikelnummer: 109809 Start- / Endseite: 1 - 9 Identifikator: ISSN: 0022-3697
CoNE: https://pure.mpg.de/cone/journals/resource/110992357322388