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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F12%3A00395794%21RIV14-AV0-68378271
rdf:type
n8:Vysledek skos:Concept
dcterms:description
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 57Fe 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 hyperfine interactions 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. 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 57Fe 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 hyperfine interactions 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.
dcterms:title
Analysis of cationic impurity impact on hyperfine interactions in magnetite Analysis of cationic impurity impact on hyperfine interactions in magnetite
skos:prefLabel
Analysis of cationic impurity impact on hyperfine interactions in magnetite Analysis of cationic impurity impact on hyperfine interactions in magnetite
skos:notation
RIV/68378271:_____/12:00395794!RIV14-AV0-68378271
n8:predkladatel
n18:ico%3A68378271
n3:aktivita
n13:I n13:S
n3:aktivity
I, S
n3:cisloPeriodika
11
n3:dodaniDat
n11:2014
n3:domaciTvurceVysledku
n4:6985599
n3:druhVysledku
n14:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
122089
n3:idVysledku
RIV/68378271:_____/12:00395794
n3:jazykVysledku
n17:eng
n3:klicovaSlova
iron compounds; magnetic materials; magnetite; nuclear magnetic resonance
n3:klicoveSlovo
n5:iron%20compounds n5:magnetic%20materials n5:magnetite n5:nuclear%20magnetic%20resonance
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[4698309065C6]
n3:nazevZdroje
IEEE Transactions on Magnetics
n3:obor
n9:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n11:2012
n3:svazekPeriodika
48
n3:tvurceVysledku
Štěpánková, H. Řezníček, R. Novák, Pavel Kozlowski, A. Chlan, V.
n3:wos
000310194400079
s:issn
0018-9464
s:numberOfPages
4
n15:doi
10.1109/TMAG.2012.2204967