Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
601 0 |
SM ISO690:2012 STAMOV, Ivan, ZALAMAI, Victor, SYRBU, Nicolae, TIRON, Andrew. Optical properties and birefringence of ZnIn2 S4 layered crystals. In: Journal of Physics and Chemistry of Solids, 2020, nr. 136, p. 0. ISSN 0022-3697. DOI: https://doi.org/10.1016/j.jpcs.2019.05.013 |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Journal of Physics and Chemistry of Solids | ||||||
Numărul 136 / 2020 / ISSN 0022-3697 /ISSNe 0022-3697 | ||||||
|
||||||
DOI:https://doi.org/10.1016/j.jpcs.2019.05.013 | ||||||
Pag. 0-0 | ||||||
|
||||||
Rezumat | ||||||
Interference spectra of layered ZnIn2S4 crystals were investigated for samples of different thicknesses (7.5–900 μm). Spectral dependences of refractive indices (na and nb) for light waves with different polarizations were calculated and their intersection observed at energy E0 ∼ 2.38 eV. The refractive indices difference (Δn = na − nb) was determined at energy range 0.8–3.0 eV. Features observed in reflection and absorption spectra were attributed to the band-to-band electron transitions at k = 0. Magnitudes of valence bands (V1, V2 and V3, V4) splitting due to crystal field and spin–orbital interaction were determined. Electron transitions in energy interval 2–6 eV were identified on the basis of available theoretical band structure calculations. |
||||||
Cuvinte-cheie Interference spectra, Birefringence, Frenkel excitons, refractive indices, Band structure |
||||||
|
DataCite XML Export
<?xml version='1.0' encoding='utf-8'?> <resource xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns='http://datacite.org/schema/kernel-3' xsi:schemaLocation='http://datacite.org/schema/kernel-3 http://schema.datacite.org/meta/kernel-3/metadata.xsd'> <identifier identifierType='DOI'>10.1016/j.jpcs.2019.05.013</identifier> <creators> <creator> <creatorName>Stamov, I.G.</creatorName> <affiliation>Universitatea din Tiraspol „T.G. Şevcenko” , Moldova, Republica</affiliation> </creator> <creator> <creatorName>Zalamai, V.V.</creatorName> <affiliation>Universitatea Tehnică a Moldovei, Moldova, Republica</affiliation> </creator> <creator> <creatorName>Sîrbu, N.N.</creatorName> <affiliation>Universitatea Tehnică a Moldovei, Moldova, Republica</affiliation> </creator> <creator> <creatorName>Tiron, A.V.</creatorName> <affiliation>Universitatea Tehnică a Moldovei, Moldova, Republica</affiliation> </creator> </creators> <titles> <title xml:lang='en'>Optical properties and birefringence of ZnIn2 S4 layered crystals</title> </titles> <publisher>Instrumentul Bibliometric National</publisher> <publicationYear>2020</publicationYear> <relatedIdentifier relatedIdentifierType='ISSN' relationType='IsPartOf'>0022-3697</relatedIdentifier> <subjects> <subject>Interference spectra</subject> <subject>Birefringence</subject> <subject>Frenkel excitons</subject> <subject>refractive indices</subject> <subject>Band structure</subject> </subjects> <dates> <date dateType='Issued'>2020-01-21</date> </dates> <resourceType resourceTypeGeneral='Text'>Journal article</resourceType> <descriptions> <description xml:lang='en' descriptionType='Abstract'><p>Interference spectra of layered ZnIn<sub>2</sub>S<sub>4</sub> crystals were investigated for samples of different thicknesses (7.5–900 μm). Spectral dependences of refractive indices (<strong><em>n</em></strong><sup><strong><em>a</em></strong></sup> and <strong><em>n</em></strong><sup><strong><em>b</em></strong></sup>) for light waves with different polarizations were calculated and their intersection observed at energy <strong><em>E</em></strong><sub><strong><em>0</em></strong></sub> ∼ 2.38 eV. The refractive indices difference (<strong><em>Δn = n</em></strong><sup><strong><em>a</em></strong></sup> <strong><em>− n</em></strong><sup><strong><em>b</em></strong></sup>) was determined at energy range 0.8–3.0 eV. Features observed in reflection and absorption spectra were attributed to the band-to-band electron transitions at <strong><em>k</em></strong> = 0. Magnitudes of valence bands (<strong><em>V</em></strong><sub><strong><em>1</em></strong></sub>, <strong><em>V</em></strong><sub><strong><em>2</em></strong></sub> and <strong><em>V</em></strong><sub><strong><em>3</em></strong></sub>, <strong><em>V</em></strong><sub><strong><em>4</em></strong></sub>) splitting due to crystal field and spin–orbital interaction were determined. Electron transitions in energy interval 2–6 eV were identified on the basis of available theoretical band structure calculations.</p></description> </descriptions> <formats> <format>uri</format> </formats> </resource>