<div class="csl-bib-body">
<div class="csl-entry">Seifner, M. S., Jaroš, A., Toyfl, J., Czasch, B., Beltran-Romero, S., Bicket, I. C., & Haslinger, P. (2026, September 21). <i>Sensing electron spin dynamics with localized free-electron probes</i> [Poster Presentation]. 867. Wilhelm and Else Heraeus Seminar on “Quantum Electron-Photon Interactions,” Prag, Czechia. http://hdl.handle.net/20.500.12708/231386</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/231386
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dc.description.abstract
Spin-dependent phenomena play a central role in determining the quantum and magnetic properties of materials. Techniques such as electron spin resonance (ESR) and nuclear magnetic resonance (NMR) use microwave (MW) radiation to coherently manipulate spin states and have become essential tools for studying spin systems [1,2]. However, these approaches typically measure the averaged response of large spin ensembles and therefore provide limited spatial information, making it difficult to investigate locally varying properties in heterogeneous materials. Here, we introduce SPINEM (Spin Electron Microscopy), a method that combines MW-driven electron spin excitation with the spatial resolving power of transmission electron microscopy (TEM). In our approach, the static magnetic field of the TEM objective lens polarizes the electron spins in the sample, while a MW resonator integrated into a dedicated TEM holder [3] drives electron spin transitions in the gigahertz range. The applied MW field periodically deflects the probing free-electron beam, while the precessing electron spins generate an additional oscillating magnetic field that further modulates the electron trajectory. Using phase-sensitive detection synchronized to the MW excitation, these weak electron spin-induced deflections can be separated from the primary beam modulation and detected with sensitivity in the picoradian regime. By tuning the external magnetic field through the resonance condition of the sample, SPINEM enables highly sensitive measurements of local spin dynamics [4]. SPINEM combines the spectroscopic strengths of conventional spin-resonance methods with the spatial resolution of electron microscopy, providing localized access to electron spin-dependent properties within a sample. More broadly, the technique opens a pathway toward quantum-enabled electron microscopy approaches capable of probing nanoscale spin phenomena beyond the reach of conventional ensemble-based measurements.
en
dc.language.iso
en
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dc.subject
Spin dynamics
en
dc.subject
Free Electrons
en
dc.title
Sensing electron spin dynamics with localized free-electron probes
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
TU Wien, Austria
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dc.type.category
Poster Presentation
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tuw.researchinfrastructure
Universitäre Service-Einrichtung für Transmissionselektronenmikroskopie
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tuw.researchTopic.id
M2
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tuw.researchTopic.id
Q2
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Quantum Metrology and Precision Measurements
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tuw.researchTopic.value
50
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tuw.researchTopic.value
50
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tuw.publication.orgunit
E141-02 - Forschungsbereich Atom Physics and Quantum Optics
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tuw.publication.orgunit
E057-02 - Fachbereich Universitäre Serviceeinrichtung für Transmissions- Elektronenmikroskopie
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tuw.author.orcid
0000-0001-9101-5520
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tuw.author.orcid
0009-0000-4974-8675
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tuw.author.orcid
0009-0000-0310-5551
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tuw.author.orcid
0000-0002-5255-4481
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tuw.event.name
867. Wilhelm and Else Heraeus Seminar on "Quantum Electron-Photon Interactions"
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tuw.event.startdate
21-09-2026
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tuw.event.enddate
24-09-2026
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Prag
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tuw.event.country
CZ
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tuw.event.institution
Wilhelm und Else Heraeus-Stiftung
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tuw.event.presenter
Seifner, Michael S.
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tuw.event.track
Single Track
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1030
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wb.sciencebranch.value
100
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item.languageiso639-1
en
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18co
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item.grantfulltext
none
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item.fulltext
no Fulltext
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item.openairetype
conference poster not in proceedings
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crisitem.author.dept
E057-02 - Fachbereich Universitäre Serviceeinrichtung für Transmissions- Elektronenmikroskopie
-
crisitem.author.dept
E141-02 - Forschungsbereich Atom Physics and Quantum Optics
-
crisitem.author.dept
E141-02 - Forschungsbereich Atom Physics and Quantum Optics
-
crisitem.author.dept
TU Wien, Austria
-
crisitem.author.dept
E141-02 - Forschungsbereich Atom Physics and Quantum Optics
-
crisitem.author.dept
E141-02 - Forschungsbereich Atom Physics and Quantum Optics
-
crisitem.author.dept
E141-02 - Forschungsbereich Atom Physics and Quantum Optics
