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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F13%3A00436938%21RIV15-AV0-68378271
rdf:type
skos:Concept n17:Vysledek
dcterms:description
Development of experimental techniques for characterization of magnetic properties at high spatial resolution is essential for progress in miniaturization of magnetic devices, for example, in data storage media. Inelastic scattering of electron vortex beams (EVBs) was recently reported to contain atom-specific magnetic information. We develop a theoretical description of inelastic scattering of EVBs on crystals and perform simulations for EVBs of different diameters. We show that use of an EVB wider than an interatomic distance does not provide any advantage over an ordinary convergent beam without angular momentum. On the other hand, in the atomic-resolution limit, electron energy loss spectra measured by EVBs are strongly sensitive to the spin and orbital magnetic moments of studied matter, when channeling through or very close to the atomic columns. Our results demonstrate the boundaries for efficient use of EVBs in measurement of magnetic properties. Development of experimental techniques for characterization of magnetic properties at high spatial resolution is essential for progress in miniaturization of magnetic devices, for example, in data storage media. Inelastic scattering of electron vortex beams (EVBs) was recently reported to contain atom-specific magnetic information. We develop a theoretical description of inelastic scattering of EVBs on crystals and perform simulations for EVBs of different diameters. We show that use of an EVB wider than an interatomic distance does not provide any advantage over an ordinary convergent beam without angular momentum. On the other hand, in the atomic-resolution limit, electron energy loss spectra measured by EVBs are strongly sensitive to the spin and orbital magnetic moments of studied matter, when channeling through or very close to the atomic columns. Our results demonstrate the boundaries for efficient use of EVBs in measurement of magnetic properties.
dcterms:title
Boundaries for efficient use of electron vortex beams to measure magnetic properties Boundaries for efficient use of electron vortex beams to measure magnetic properties
skos:prefLabel
Boundaries for efficient use of electron vortex beams to measure magnetic properties Boundaries for efficient use of electron vortex beams to measure magnetic properties
skos:notation
RIV/68378271:_____/13:00436938!RIV15-AV0-68378271
n3:aktivita
n12:I
n3:aktivity
I
n3:cisloPeriodika
10
n3:dodaniDat
n6:2015
n3:domaciTvurceVysledku
n13:4667026
n3:druhVysledku
n10:J
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
63778
n3:idVysledku
RIV/68378271:_____/13:00436938
n3:jazykVysledku
n14:eng
n3:klicovaSlova
orbital angular-momentum; circular-dichroism; chiral dichroism; microscope; resolution
n3:klicoveSlovo
n4:orbital%20angular-momentum n4:chiral%20dichroism n4:microscope n4:circular-dichroism n4:resolution
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[C0C5B1A5E923]
n3:nazevZdroje
Physical Review Letters
n3:obor
n7:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n6:2013
n3:svazekPeriodika
111
n3:tvurceVysledku
Bhowmick, S. Rusz, Ján
n3:wos
000324233100004
s:issn
0031-9007
s:numberOfPages
5
n15:doi
10.1103/PhysRevLett.111.105504