Long-wavelength optical properties of the Ca0.33Sr0.33Ba0.33F2 solid solution single crystals

Komandin, G. A.; Spector, Ilan; Федоров, П. П.; Kuznetsov, S. V.; Ushakov, S. N.; Uslamina, M. A.; Нищев, К. Н.; Garibin, E. A.

doi:10.1016/j.optmat.2022.112267

Cited by 4 publications

(2 citation statements)

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“…Such crystals were grown previously and studied to a limited extent and are listed in Table 1. 1423-1483 [14,15] It should be noted that the CaF 2 -SrF 2 system is the most designed in terms of growing crystals and the most practically significant until now. Rare-earth-doped Ca 1−x Sr x F 2 solid solution crystals (and optical ceramics based on it) were grown and studied in [16][17][18][19][20][21][22] for various photonic applications.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the search for multicomponent compositions with compositions close to congruent melting remains actual and is crucial for the development of inorganic materials science. Recently, single crystals of a ternary solid solution in the CaF 2 -SrF 2 -BaF 2 system were grown and studied in [14,15] in the range of compositions close to Ca 0.3(3) Sr 0.3(3) Ba 0.3(3) F 2 (CaSrBaF 6 ) with a high degree of uniformity in the axial distribution of components. Apparently, the nature of their crystallization is close to congruent.…”

Section: Introductionmentioning

confidence: 99%

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PbF2–CdF2–SrF2 Ternary Solid Solution: Crystal Growth and Investigation

et al. 2023

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Crystals based on alkaline earth metal difluorides are widely used optical materials. In this study, in order to expand the range of optical matrices, multicomponent Pb1−x−yCdxSryF2 (0.27 < x < 0.55, 0.06 < y < 0.18) solid solution crystals with a fluorite structure (sp. gr. Fm-3m) were grown from melt using the vertical directional crystallization technique for the first time. The densities and refractive indices of the grown crystals vary depending on the quantitative content components (x and y) in the ranges of 6.6039(5)–7.5232(5) g/cm3 and 1.6403–1.7084, respectively. The optical transmission and electrochemical impedance spectra were studied. The homogenous composition regions of non-cellular crystallization of this ternary solid solution at a crystallization rate of 6 mm/h and an interface temperature gradient of 80 deg/cm were experimentally determined as 0.30 < x < 0.35, 0 < y < 0.6. These grown crystalline materials may be of interest as high-density highly refractive cubic isomorphic hosts and low-temperature ionic conductors (~2 × 10−5 S/cm at room temperature) for various applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

PbF2–CdF2–SrF2 Ternary Solid Solution: Crystal Growth and Investigation

et al. 2023

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Electric-dipole and magnetic absorption in TbFeO3 single crystals in the THz–IR range

Komandin

Kuzmenko

Spektor

et al. 2023

Journal of Applied Physics

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Various mechanisms of absorption including both electric-dipole excitations and magnetic ones in a broadband (5–5000 cm−1) polarized transmission and reflection spectra were studied in orthoferrite TbFeO3 using a coherent submillimeter, pulsed THz, and IR Fourier transform spectroscopy. The classical oscillator model and generalized four-parameter model were used to analyze the spectra obtained, and the parameters of the models were determined. We analyzed main absorption processes, which include contributions of both phonons and multi-phonon processes as well as electron transitions in Tb3+ ions and two antiferromagnetic resonance modes in the Fe subsystem. As a result, the spectra of real and imaginary parts of permeability and permittivity were obtained. A distinctive feature of the studied electrodynamic response in TbFeO3 is a significant absorption in the THz range due to multi-phonon processes, which exceeds optical phonon contribution by an order of magnitude at room temperature.

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