Pavlov, Sergey und Abrosimov, N. V. und Hübers, Heinz-Wilhelm (2023) Valley-orbit splitting of lithium-related donors in silicon. Physical Review B, 107, Seite 115205. American Physical Society. doi: 10.1103/PhysRevB.107.115205. ISSN 2469-9950.
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Offizielle URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.107.115205
Kurzfassung
The energy spectra of lithium-related donors in silicon are revisited by temperature dependent infrared absorption spectroscopy. We determine the valley-orbit splitting of an interstitial isolated lithium donor and its complex with residual oxygen in float-zone grown crystals doped from the melt. Lithium-oxygen donors exhibit a temperature evolution of their absorption spectra similar to that of substitutional single-electron group-V donors, while its valley-orbit splitting is corrected upwards to +9.865(5) meV. For the lithium donor, the previously reported inverted valley-orbit splitting is not confirmed since the components of different symmetry are not spectrally resolved in our study. Instead, the chemical shift of the ground state of the donor, having a symmetry different from that of group-V donors, was corrected to a slightly larger value of 1.82(2) meV. Intracenter transitions from the split-off ground state of the Li donor exhibit an anomalous broadening. In addition, several Rydberg-like high excited states, up to 7h±, of lithium-related centers were determined from absorption spectra of moderately doped samples.
elib-URL des Eintrags: | https://elib.dlr.de/198370/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | Valley-orbit splitting of lithium-related donors in silicon | ||||||||||||||||
Autoren: |
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Datum: | 20 März 2023 | ||||||||||||||||
Erschienen in: | Physical Review B | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Nein | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||
Band: | 107 | ||||||||||||||||
DOI: | 10.1103/PhysRevB.107.115205 | ||||||||||||||||
Seitenbereich: | Seite 115205 | ||||||||||||||||
Verlag: | American Physical Society | ||||||||||||||||
ISSN: | 2469-9950 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | silicon, donors, valley-orbit splitting | ||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||
HGF - Programmthema: | Technik für Raumfahrtsysteme | ||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||
DLR - Forschungsgebiet: | R SY - Technik für Raumfahrtsysteme | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Detektoren für optische Instrumente | ||||||||||||||||
Standort: | Berlin-Adlershof | ||||||||||||||||
Institute & Einrichtungen: | Institut für Optische Sensorsysteme > Terahertz- und Laserspektroskopie | ||||||||||||||||
Hinterlegt von: | Pavlov, Dr. Sergey | ||||||||||||||||
Hinterlegt am: | 24 Okt 2023 08:51 | ||||||||||||||||
Letzte Änderung: | 04 Dez 2023 11:23 |
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