دورية أكاديمية
The electronic structure of ε-Ga2O3
العنوان: | The electronic structure of ε-Ga2O3 |
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المؤلفون: | M. Mulazzi, F. Reichmann, A. Becker, W. M. Klesse, P. Alippi, V. Fiorentini, A. Parisini, M. Bosi, R. Fornari |
المصدر: | APL Materials, Vol 7, Iss 2, Pp 022522-022522-6 (2019) |
بيانات النشر: | AIP Publishing LLC, 2019. |
سنة النشر: | 2019 |
المجموعة: | LCC:Biotechnology LCC:Physics |
مصطلحات موضوعية: | Biotechnology, TP248.13-248.65, Physics, QC1-999 |
الوصف: | The electronic structure of ε-Ga2O3 thin films has been investigated by ab initio calculations and photoemission spectroscopy with UV, soft, and hard X-rays to probe the surface and bulk properties. The latter measurements reveal a peculiar satellite structure in the Ga 2p core level spectrum, absent at the surface, and a core-level broadening that can be attributed to photoelectron recoil. The photoemission experiments indicate that the energy separation between the valence band and the Fermi level is about 4.4 eV, a valence band maximum at the Γ point and an effective mass of the highest lying bands of – 4.2 free electron masses. The value of the bandgap compares well with that obtained by optical experiments and with that obtained by calculations performed using a hybrid density-functional, which also reproduce well the dispersion and density of states. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 2166-532X |
Relation: | https://doaj.org/toc/2166-532X |
DOI: | 10.1063/1.5054395 |
URL الوصول: | https://doaj.org/article/99193bbad9164c628109f39395984729 |
رقم الأكسشن: | edsdoj.99193bbad9164c628109f39395984729 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 2166532X |
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DOI: | 10.1063/1.5054395 |