Magnetic ground state of nanosized beta-Fe2O3 and its remarkable electronic features

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33155624" target="_blank" >RIV/61989592:15310/15:33155624 - isvavai.cz</a>

Výsledek na webu

<a href="http://pubs.rsc.org/en/content/articlepdf/2015/ra/c5ra07484c" target="_blank" >http://pubs.rsc.org/en/content/articlepdf/2015/ra/c5ra07484c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c5ra07484c" target="_blank" >10.1039/c5ra07484c</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetic ground state of nanosized beta-Fe2O3 and its remarkable electronic features

Popis výsledku v původním jazyce

To date, iron oxides have been extensively investigated for promising high applicability in various scientific and industrial fields. In general, several forms can be distinguished with respect to their crystal structure, which drives their specific physical (in particular, magnetic) properties. In this study, the pure beta-Fe2O3 phase, prepared in a nanoparticle form by a solid-state synthetic strategy, was investigated by employing Fe-57 Mossbauer spectroscopy, magnetization measurements, transmissionelectron microscopy, X-ray powder diffraction, heat capacity measurements, and cyclic voltammetry. It is revealed that below the Neel transition temperature, beta-Fe2O3 behaves as a canted antiferromagnet with a small net magnetic moment. For further possible utilization in photoelectrochemical applications, an estimation of the beta-Fe2O3 band gap by cyclic voltammetry was performed, which was measured to be similar to 2.2 eV.

Název v anglickém jazyce

Magnetic ground state of nanosized beta-Fe2O3 and its remarkable electronic features

Popis výsledku anglicky

To date, iron oxides have been extensively investigated for promising high applicability in various scientific and industrial fields. In general, several forms can be distinguished with respect to their crystal structure, which drives their specific physical (in particular, magnetic) properties. In this study, the pure beta-Fe2O3 phase, prepared in a nanoparticle form by a solid-state synthetic strategy, was investigated by employing Fe-57 Mossbauer spectroscopy, magnetization measurements, transmissionelectron microscopy, X-ray powder diffraction, heat capacity measurements, and cyclic voltammetry. It is revealed that below the Neel transition temperature, beta-Fe2O3 behaves as a canted antiferromagnet with a small net magnetic moment. For further possible utilization in photoelectrochemical applications, an estimation of the beta-Fe2O3 band gap by cyclic voltammetry was performed, which was measured to be similar to 2.2 eV.

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

RSC Advances (online)

ISSN

2046-2069

e-ISSN

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Svazek periodika

5

Číslo periodika v rámci svazku

61

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

49719-49727

Kód UT WoS článku

000355989400088

EID výsledku v databázi Scopus

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