Urbach Rule and Estimation of the Energy Gap Width in Molybdates

Urbach Rule and Estimation of the Energy Gap Width in Molybdates

The temperature dependence of the fundamental absorption edge in molybdates CaMoO 4 , SrMoO 4 , PbMoO 4 , Pb 2 MoO 5 , and MgMoO 4 has been studied. The dependences are approximated using the Urbach formula. Parameter E 0 obtained as a result of the approximation is shown can be used to estimate the...

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Veröffentlicht in:Physics of the solid state 2020-08, Vol.62 (8), p.1325-1332
Hauptverfasser: Fedyunin, F. D., Spassky, D. A.
Format: Artikel
Sprache:eng
Schlagworte:
Calcium compounds
Dielectrics
Energy gap
Lead molybdates
Physics
Physics and Astronomy
Solid State Physics
Temperature dependence
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Zusammenfassung:The temperature dependence of the fundamental absorption edge in molybdates CaMoO 4 , SrMoO 4 , PbMoO 4 , Pb 2 MoO 5 , and MgMoO 4 has been studied. The dependences are approximated using the Urbach formula. Parameter E 0 obtained as a result of the approximation is shown can be used to estimate the energy gap width in the molybdates.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783420080144