Analysis of Cationic Impurity Impact on Hyperfine Interactions in Magnetite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10126456" target="_blank" >RIV/00216208:11320/12:10126456 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/12:00395794

Výsledek na webu

<a href="http://dx.doi.org/10.1109/TMAG.2012.2204967" target="_blank" >http://dx.doi.org/10.1109/TMAG.2012.2204967</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TMAG.2012.2204967" target="_blank" >10.1109/TMAG.2012.2204967</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of Cationic Impurity Impact on Hyperfine Interactions in Magnetite

Popis výsledku v původním jazyce

The Al, Ga, Ti and Zn impurities were studied in high quality single crystal samples of magnetite (Fe3O4). The cases when the valence of the substitution ion differs from that of the original iron ion are of a particular interest. The measurement of nuclear magnetic resonance (NMR) of F-57 was chosen as the experimental method for its sensitivity to Fe magnetic and electronic structure and to local ordering in the neighborhood of resonating nuclei. Local electronic structure and hence also the hyperfineinteractions are affected by the presence of the substitution and thus resonance frequencies of nuclei in the vicinity of the substitution are shifted due to the modified hyperfine field, therefore satellite signals are observed in the NMR spectra. Temperature dependences of spectra above the Verwey transition were measured in a zero external magnetic field. Subsequently, the dependences of frequencies of main lines and satellite signals in the spectra on temperature were fitted with sp

Název v anglickém jazyce

Analysis of Cationic Impurity Impact on Hyperfine Interactions in Magnetite

Popis výsledku anglicky

The Al, Ga, Ti and Zn impurities were studied in high quality single crystal samples of magnetite (Fe3O4). The cases when the valence of the substitution ion differs from that of the original iron ion are of a particular interest. The measurement of nuclear magnetic resonance (NMR) of F-57 was chosen as the experimental method for its sensitivity to Fe magnetic and electronic structure and to local ordering in the neighborhood of resonating nuclei. Local electronic structure and hence also the hyperfineinteractions are affected by the presence of the substitution and thus resonance frequencies of nuclei in the vicinity of the substitution are shifted due to the modified hyperfine field, therefore satellite signals are observed in the NMR spectra. Temperature dependences of spectra above the Verwey transition were measured in a zero external magnetic field. Subsequently, the dependences of frequencies of main lines and satellite signals in the spectra on temperature were fitted with sp

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

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

IEEE Transactions on Magnetics

ISSN

0018-9464

e-ISSN

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Svazek periodika

48

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

3039-3042

Kód UT WoS článku

000310194400079

EID výsledku v databázi Scopus

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