Polaronic Hall mobility in neodymium nickelate films

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00635668" target="_blank" >RIV/68378271:_____/25:00635668 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.jpcs.2025.112837" target="_blank" >https://doi.org/10.1016/j.jpcs.2025.112837</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jpcs.2025.112837" target="_blank" >10.1016/j.jpcs.2025.112837</a>

Result language

angličtina

Original language name

Polaronic Hall mobility in neodymium nickelate films

Original language description

Knowledge of the carrier mobility is essential for identifying and understanding charge transport mechanisms. This is especially relevant in rare-earth perovskite nickelates ReNiO3, which exhibit an orders-of-magnitude increase in electrical conductivity upon heating. Here, by studying the conductivity and the Hall effect in thin epitaxial films of neodymium nickelate NdNiO3, we experimentally establish the Hall mobility over a temperature interval of 4–400 K. The Hall mobility is found to be smaller than 1 cm2∕Vs at all temperatures, which indicates carrier localization. A temperature analysis of the conductivity, the Hall coefficient, and the Hall mobility reveals the hopping of small polarons in the low-temperature insulator state, the possible transport of large polarons in the high-temperature conducting state, and percolation-type behavior in the transitional region. The evidenced polaronic transport is suggested to be innate in nickelates.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

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

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Journal of Physics and Chemistry of Solids

ISSN

0022-3697

e-ISSN

1879-2553

Volume of the periodical

207

Issue of the periodical within the volume

Dec

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

112837

UT code for WoS article

001501041300001

EID of the result in the Scopus database

2-s2.0-105006667368