Abstract
The temperature dependence of the fundamental absorption edge in molybdates CaMoO4, SrMoO4, PbMoO4, Pb2MoO5, and MgMoO4 has been studied. The dependences are approximated using the Urbach formula. Parameter E0 obtained as a result of the approximation is shown can be used to estimate the energy gap width in the molybdates.
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ACKNOWLEDGMENTS
The authors are grateful to O.A. Buzanov for providing the CaMoO4 crystal, to L.I. Ivleva for providing the MgMoO4 and SrMoO4 crystals, to B.I. Zadneprovskii for providing the PbMoO4 crystal, and V.N. Shlegel, for providing the Pb2MoO5 crystal.
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Translated by Yu. Ryzhkov
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Fedyunin, F.D., Spassky, D.A. Urbach Rule and Estimation of the Energy Gap Width in Molybdates. Phys. Solid State 62, 1325–1332 (2020). https://doi.org/10.1134/S1063783420080144
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DOI: https://doi.org/10.1134/S1063783420080144