Energy band structure and optical constants of ZnAs2 crystals |
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| Authors: | I.G. Stamov N.N. Syrbu V.V. Ursaki A.V. Dorogan |
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| Affiliation: | 1. Tiraspol State Corporative University, Lablocikin street 5, 2069 Tiraspol, Republic of Moldova;2. Technical University of Moldova, 168 Stefan cel Mare Avenue, 2004 Chisinau, Republic of Moldova;3. Institute of Applied Physics, Academy of Sciences of Moldova, 5 Academy Street, 2028 Chisinau, Republic of Moldova;1. Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran;2. Department of Physics, Shahid Chamran University of Ahvaz, Ahvaz, Iran;1. Department of Physics, University of South Africa, UNISA 0003, PO Box 392, Pretoria, South Africa;2. National Centre for Nano-structured Materials, CSIR, PO Box 395, Pretoria ZA 0001, South Africa;3. Département de Physique, Université Pédagogique Nationale, Kinshasa/Ngaliema 8815, Congo;4. Department of Physics, University of Free State, Bloemfontein ZA 9300, South Africa;1. Center for Computational Materials Science, University of Malakand, Chakdara, Pakistan;2. Department of Chemistry, University of Malakand, Chakdara, 18800, Pakistan;3. Department of Physics, Faculty of Sciences, University of Isfahan (UI), Hezar Gerib Avenue, Isfahan, 81746-73441, Iran;4. Department of Physics, University of Malakand, Chakdara, 18800, Pakistan;5. Vice Chancellor Abbottabad University of Science and Technology, Abbottabad, Pakistan;1. National Renewable Energy Laboratory, Golden, CO 80401, United States;2. Department of Physics, Colorado School of Mines, Golden, CO 80401, United States |
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| Abstract: | The fine structure of the Fabry–Perot interference as well as the interference of ordinary and extraordinary waves is investigated in ZnAs2 crystals. ε1, ε2, n and k optical constants are calculated in a wide spectral range of 0.4–12 eV. The anisotropy of electronic transitions at the minimum energetic interval of the band structure is investigated. The interband energetic intervals are determined deep into the absorption band. The observed transitions are discussed taking into account the available data from the band structure calculations. |
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