Optical triggering of a metal-insulator transition in neodymium nickelate films

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00572235" target="_blank" >RIV/68378271:_____/23:00572235 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.materresbull.2023.112305" target="_blank" >https://doi.org/10.1016/j.materresbull.2023.112305</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.materresbull.2023.112305" target="_blank" >10.1016/j.materresbull.2023.112305</a>

Result language

angličtina

Original language name

Optical triggering of a metal-insulator transition in neodymium nickelate films

Original language description

We have studied photostimulated changes in the electrical resistivity of thin epitaxial films of neodymium nickelate NdNiO3 around its sharp metal-to-insulator transition. It is found that intense light irradiation strongly affects the film resistivity below the transition temperature, where the resistivity is repeatedly switched from high insulating values into low metal-phase levels. We establish that this strong photoresistive effect is likely caused by light-absorption induced heating rather than electronic excitations. Analysis of the temperature-dependent resistivity predicts a significant drop in the film thermal conductivity at the metal-to-insulator transition. The simultaneous abrupt change in two physical parameters: electrical resistivity and thermal conductivity, is responsible for a considerable magnitude of the observed photoresistive effect. This effect can be utilized in novel electronics applications, such as thin-film photodetectors or photoswitches.

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

20201 - Electrical and electronic engineering

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

2023

Confidentiality

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

Name of the periodical

Materials Research Bulletin

ISSN

0025-5408

e-ISSN

1873-4227

Volume of the periodical

165

Issue of the periodical within the volume

Sep

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

112305

UT code for WoS article

000999344400001

EID of the result in the Scopus database

2-s2.0-85157986084