The Raman surface scattering in crystals |
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| Affiliation: | 1. Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India;2. Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, 11942, Saudi Arabia;3. Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia;4. Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, P.O. Box 61413, Abha, 9088, Saudi Arabia;5. Phyto Pharmaceuticals Research Lab, Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Sciences and Research, Jamia Hamdard, Hamdard Nagar, New Delhi, 110062, India;6. Department of Pharmacology, College of Pharmacy, King Khalid University, Asir-Abha, 61421, Saudi Arabia;7. Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia;8. Pharmaceuticals Chemistry Department, Faculty of Clinical Pharmacy, Al-Baha University, Alaqiq, 65779-7738, Saudi Arabia;9. Department of Pharmaceutical Sciences, Shalom Institute of Health and Allied Sciences, Sam Higginbottom University of Agriculture, Technology & Sciences, Allahabad, India;1. Key Laboratory of Medicinal Chemistry, and Molecular Diagnosis of the Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, PR China;2. Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, PR China |
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| Abstract: | The influence of the crystal surface on the first order Raman spectrum has been theoretically examined, using the microscopic theory of the Raman scattering of the light with finite wavelength. It is shown that the Raman spectrum of the first order consists in this case of continuous bands. In addition to these bands some frequencies that belong to the surface localized modes out of these bands can appear. In the case of the Rosenstock model of the rocksalt structure with equal masses of ions, the solution is carried out analytically. |
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