Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
104 0 |
SM ISO690:2012 ANDRIESH, Andrei, SYRBU, Nicolae, YOVU, M., TĂZLĂVAN, Victor. Infrared Vibrational Modes and Anisotropy of the Effective Ionic Charge in CuAlSe2, CuAlS2, and CuGaSe2 Crystals. In: Physica Status Solidi (B) Basic Research, 1995, vol. 187, pp. 83-92. ISSN 0370-1972. DOI: https://doi.org/10.1002/pssb.2221870107 |
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Physica Status Solidi (B) Basic Research | ||||||
Volumul 187 / 1995 / ISSN 0370-1972 | ||||||
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DOI:https://doi.org/10.1002/pssb.2221870107 | ||||||
Pag. 83-92 | ||||||
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Reflectivity spectra of CuAlS2, CuAlSe2, and CuGaSe2 crystals have been investigated in the wave number range 50 to 600 cm−1 for the polarizations E ‖ c and E ⊥ c. The fundamental phonon parameters, the limiting dielectric constants ε∞ and εS and the reflectivity spectra contours have been calculated by using classical dispersion relations for both E ‖ c and E ‖ c configurations. The Szigeti effective charges and the relative ion charges of Cu, Al, Ga, Se, S anions and cations have been calculated in dependence on the incident light polarization. |
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<?xml version='1.0' encoding='utf-8'?> <oai_dc:dc xmlns:dc='http://purl.org/dc/elements/1.1/' xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd'> <dc:creator>Andrieş, A.M.</dc:creator> <dc:creator>Sîrbu, N.N.</dc:creator> <dc:creator>Iovu, M.S.</dc:creator> <dc:creator>Tăzlăvan, V.E.</dc:creator> <dc:date>1995-01-01</dc:date> <dc:description xml:lang='en'><p>Reflectivity spectra of CuAlS<sub>2</sub>, CuAlSe<sub>2</sub>, and CuGaSe<sub>2</sub> crystals have been investigated in the wave number range 50 to 600 cm<sup>−1</sup> for the polarizations E ‖ c and E ⊥ c. The fundamental phonon parameters, the limiting dielectric constants ε<sub>∞</sub> and ε<sub>S</sub> and the reflectivity spectra contours have been calculated by using classical dispersion relations for both E ‖ c and E ‖ c configurations. The Szigeti effective charges and the relative ion charges of Cu, Al, Ga, Se, S anions and cations have been calculated in dependence on the incident light polarization. </p></dc:description> <dc:identifier>10.1002/pssb.2221870107</dc:identifier> <dc:source>Physica Status Solidi (B) Basic Research () 83-92</dc:source> <dc:title>Infrared Vibrational Modes and Anisotropy of the Effective Ionic Charge in CuAlSe2, CuAlS2, and CuGaSe2 Crystals</dc:title> <dc:type>info:eu-repo/semantics/article</dc:type> </oai_dc:dc>