Laser-ablated Gd2O3 thin films: potential ferromagnetic semiconductors?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00141799" target="_blank" >RIV/00216224:14310/25:00141799 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s00339-025-08747-w" target="_blank" >https://link.springer.com/article/10.1007/s00339-025-08747-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00339-025-08747-w" target="_blank" >10.1007/s00339-025-08747-w</a>

Result language

angličtina

Original language name

Laser-ablated Gd2O3 thin films: potential ferromagnetic semiconductors?

Original language description

The emergence of room temperature ferromagnetism (RTFM) in thin films of semiconducting oxides has attracted significant interest due to its promising applications in spintronic and multifunctional electronic devices. Ferromagnetism (FM) in ultrathin layers of magnetic transition-metal oxides and in thin films of undoped oxide semiconductors typically arising from low dimensionality and the formation of surface-related vacancies and defects, makes them attractive for spintronics applications. The primary objective of this research is to investigate the magnetism in ultrathin rare-earth oxide films as a function of dimensionality. In this study, we report the structural and magnetic properties of Gd2O3 thin films grown on LaAlO3 (LAO) substrates using the pulsed laser deposition (PLD) technique. Room-temperature M-H measurements show a significant ferromagnetic response in the out-of-plane direction compared to the in-plane direction. As the Gd2O3 film thickness increases, the ferromagnetic features gradually diminish, and at higher thicknesses (t &gt; 72 nm), a paramagnetic-like behavior is observed, similar to that of bulk Gd2O3 samples. The observed RTFM behaviour in PLD-grown Gd2O3 thin films is attributed to surface oxygen vacancies, as revealed by X-ray photoelectron spectroscopy (XPS) analysis. This study highlights the achievement of the RTFM in Gd2O3 thin films, which holds potential for future spintronic applications.

Czech name

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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

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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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

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

Name of the periodical

Applied Physics A: Materials Science and Processing

ISSN

0947-8396

e-ISSN

1432-0630

Volume of the periodical

131

Issue of the periodical within the volume

8

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

1-8

UT code for WoS article

001540636000004

EID of the result in the Scopus database

2-s2.0-105011359422