Terahertz electron paramagnetic resonance generalized spectroscopic ellipsometry: The magnetic response of the nitrogen defect in 4H-SiC

Simple item page
dc.contributor.authorSchubert, Mathiascs
dc.contributor.authorKnight, Seancs
dc.contributor.authorRichter, Steffencs
dc.contributor.authorKuehne, Philippcs
dc.contributor.authorStanishev, Vallerycs
dc.contributor.authorRuder, Alexandercs
dc.contributor.authorStokey, Megancs
dc.contributor.authorKorlacki, Rafalcs
dc.contributor.authorIrmscher, Klauscs
dc.contributor.authorNeugebauer, Petrcs
dc.contributor.authorDarakchieva, Vanyacs
dc.coverage.issue10cs
dc.coverage.volume120cs
dc.date.issued2022-03-08cs
dc.description.abstractWe report on terahertz (THz) electron paramagnetic resonance generalized spectroscopic ellipsometry (THz-EPR-GSE). Measurements of field and frequency dependencies of magnetic response due to spin transitions associated with nitrogen defects in 4H-SiC are shown as an example. THz-EPR-GSE dispenses with the need of a cavity, permits independently scanning field and frequency parameters, and does not require field or frequency modulation. We investigate spin transitions of hexagonal (h) and cubic (k) coordinated nitrogen including coupling with its nuclear spin (I = 1), and we propose a model approach for the magnetic susceptibility to account for the spin transitions. From the THz-EPR-GSE measurements, we can fully determine polarization properties of the spin transitions, and we can obtain the k coordinated nitrogen g and hyperfine splitting parameters using magnetic field and frequency dependent Lorentzian oscillator line shape functions. Magnetic-field line broadening presently obscures access to h parameters. We show that measurements of THz-EPR-GSE at positive and negative fields differ fundamentally and hence provide additional information. We propose frequency-scanning THz-EPR-GSE as a versatile method to study properties of spins in solid state materials.en
dc.formattextcs
dc.format.extent1-6cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationApplied Physics Letters. 2022, vol. 120, issue 10, p. 1-6.en
dc.identifier.doi10.1063/5.0082353cs
dc.identifier.issn0003-6951cs
dc.identifier.orcid0000-0001-7095-6401cs
dc.identifier.other178581cs
dc.identifier.researcheridI-7844-2013cs
dc.identifier.urihttp://hdl.handle.net/11012/209154
dc.language.isoencs
dc.publisherAIP Publishingcs
dc.relation.ispartofApplied Physics Letterscs
dc.relation.urihttps://aip.scitation.org/doi/10.1063/5.0082353cs
dc.rights(C) AIP Publishingcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0003-6951/cs
dc.subjectMAGNETOOPTIC ELLIPSOMETRYen
dc.subjectFREQUENCYen
dc.subjectEPRen
dc.subjectPARAMETERSen
dc.subjectANISOTROPYen
dc.subjectSPECTRAen
dc.subjectENDORen
dc.titleTerahertz electron paramagnetic resonance generalized spectroscopic ellipsometry: The magnetic response of the nitrogen defect in 4H-SiCen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-178581en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:50:52en
sync.item.modts2025.01.17 16:47:20en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Magneto-Optická a THz Spektroskopiecs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
5.0082353_accepted.pdf
Size:
716.29 KB
Format:
Adobe Portable Document Format
Description:
5.0082353_accepted.pdf
Download
Collections
Magneto-Optická a THz Spektroskopie