Electrical, thermal, and magnetic characterization of natural tetrahedrites-tennantites of different origin

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00470897" target="_blank" >RIV/68378271:_____/16:00470897 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/16:00311344

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11664-015-4032-x" target="_blank" >http://dx.doi.org/10.1007/s11664-015-4032-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11664-015-4032-x" target="_blank" >10.1007/s11664-015-4032-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrical, thermal, and magnetic characterization of natural tetrahedrites-tennantites of different origin

Popis výsledku v původním jazyce

Naturally occurring sulfosalt minerals of the tetrahedrite–tennantite series ((Cu,Fe,Zn,Ag,Hg)12(Sb,As)4S13) are studied because of their potential use as basic components in the manufacture of thermoelectric devices for moderate-temperature applications. In the work reported herein, the chemical, crystallographic, thermoelectric, and magnetic properties of four specimens from different ores from Europe and America were exhaustively characterized. Our study revealed that these natural tetrahedrites usually behave as low-to-moderately doped p-type semiconductors with low mobility. Their carrier charge transport is thus located at the edge between hopping and itinerant mechanisms. The magnetic study, probing the behavior of the constituent iron species, revealed that an insignificant part of the iron occurs as ferromagnetic impurities. The dominant iron species is Fe2+ ions with antiferromagnetic interactions. The maximum value of ZT observed was 0.13 at 700 K; this value impaired, primarily, by high electrical resistivity.

Název v anglickém jazyce

Electrical, thermal, and magnetic characterization of natural tetrahedrites-tennantites of different origin

Popis výsledku anglicky

Naturally occurring sulfosalt minerals of the tetrahedrite–tennantite series ((Cu,Fe,Zn,Ag,Hg)12(Sb,As)4S13) are studied because of their potential use as basic components in the manufacture of thermoelectric devices for moderate-temperature applications. In the work reported herein, the chemical, crystallographic, thermoelectric, and magnetic properties of four specimens from different ores from Europe and America were exhaustively characterized. Our study revealed that these natural tetrahedrites usually behave as low-to-moderately doped p-type semiconductors with low mobility. Their carrier charge transport is thus located at the edge between hopping and itinerant mechanisms. The magnetic study, probing the behavior of the constituent iron species, revealed that an insignificant part of the iron occurs as ferromagnetic impurities. The dominant iron species is Fe2+ ions with antiferromagnetic interactions. The maximum value of ZT observed was 0.13 at 700 K; this value impaired, primarily, by high electrical resistivity.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Electronic Materials

ISSN

0361-5235

e-ISSN

—

Svazek periodika

45

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

1351-1357

Kód UT WoS článku

000371163400022

EID výsledku v databázi Scopus

2-s2.0-84959527648