High-temperature resistivity in rare-earth nickelates films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00575694" target="_blank" >RIV/68378271:_____/23:00575694 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jmmm.2023.171256" target="_blank" >https://doi.org/10.1016/j.jmmm.2023.171256</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmmm.2023.171256" target="_blank" >10.1016/j.jmmm.2023.171256</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High-temperature resistivity in rare-earth nickelates films

Popis výsledku v původním jazyce

We expand the temperature interval of the resistivity measurement to clarify the charge transport mechanisms in the rare-earth nickelates ReNiO3. Thin films of LaNiO3 demonstrate an expected metallic behavior at high temperatures: a perfect linear rise of the resistivity with temperature is confirmed. However, NdNiO3 films characterized by a sharp metal-to-insulator transition display a noticeable deviation of their high-temperature resistivity from the metallic linear relation. This deviation is suggested to originate from an additional thermally activated hopping transport. High-temperature hopping conductivity is also found in SmNiO3 films. Carrier localization due to disorder and the formation of small polarons is discussed as being responsible for hopping.

Název v anglickém jazyce

High-temperature resistivity in rare-earth nickelates films

Popis výsledku anglicky

We expand the temperature interval of the resistivity measurement to clarify the charge transport mechanisms in the rare-earth nickelates ReNiO3. Thin films of LaNiO3 demonstrate an expected metallic behavior at high temperatures: a perfect linear rise of the resistivity with temperature is confirmed. However, NdNiO3 films characterized by a sharp metal-to-insulator transition display a noticeable deviation of their high-temperature resistivity from the metallic linear relation. This deviation is suggested to originate from an additional thermally activated hopping transport. High-temperature hopping conductivity is also found in SmNiO3 films. Carrier localization due to disorder and the formation of small polarons is discussed as being responsible for hopping.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Magnetism and Magnetic Materials

ISSN

0304-8853

e-ISSN

1873-4766

Svazek periodika

587

Číslo periodika v rámci svazku

Dec.

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

171256

Kód UT WoS článku

001079494800001

EID výsledku v databázi Scopus

2-s2.0-85172904877