CsPbCl3 nanocrystals dispersed in the Rb0,8Cs0,2Cl matrix studied by far-infrared spectroscopy

Voloshynovskii, A.; Savchyn, P.; Karbovnyk, Ivan; Myagkota, S. V.; Guidi, M. Cestelli; Piccinini, M.; Попов, А. И.

doi:10.1016/j.ssc.2009.01.032

Cited by 22 publications

(7 citation statements)

References 35 publications

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“…Although this method is known to have limitations (concerned with measurement range, polarization, crystal symmetry, etc.) it was demonstrated that it may produce correct peak values of the imaginary dielectric constant (for example, see [12,13] and references therein). However, in order to validate the values obtained by means of Kramers-Kronig transformation we have additionally applied the factorized approach and parametric fitting of IR reflectivity.…”

Section: Resultsmentioning

confidence: 99%

A new method of growing K2CoxNi1−x(SO4)2*6H2O (x=0; 0.4; 0.8; 1) mixed crystals and their spectral investigation

Polovynko

Rykhlyuk

Karbovnyk

et al. 2009

Journal of Crystal Growth

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Section: Resultsmentioning

confidence: 99%

A new method of growing K2CoxNi1−x(SO4)2*6H2O (x=0; 0.4; 0.8; 1) mixed crystals and their spectral investigation

Polovynko

Rykhlyuk

Karbovnyk

et al. 2009

Journal of Crystal Growth

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“…Therefore, they are intensively used nowadays in infrared (IR) spectroscopy to probe vibrational properties of single crystalline [1,2], microcrystaline [2,3] and nanocrystalline materials [4][5][6][7]. Besides that infrared spectrum can contain information on magnetic excitations, which were observed, for example, in antiferromagnetic metal oxides as CoO, NiO and solid solutions Ni c Mg 1-c O and Co c Mg 1-c O [2,8].…”

Section: Introductionmentioning

confidence: 99%

Synchrotron-based far-infrared spectroscopy of nickel tungstate

Kalinko

Kuzmin

Roy

et al. 2016

Low Temperature Physics

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“…Novel surface and interface phenomena, occurring in the ABO3 perovskite and YAlO3 (YAO) matrixes as well as their nanostructures, the complicated nature of their surface and interface states, the original mechanisms of electronic processes therein are the forefront topics in nowadays modern physics [1][2][3][4][5][6][7][8]. PbTiO3 (PTO), BaTiO3 (BTO), CaTiO3 (CTO), SrTiO3 (STO), PbZrO3 (PZO), Ba-ZrO3 (BZO), CaZrO3 (CZO) and SrZrO3 (SZO) crystals belong to the so-called family of ABO3 perovskites.…”

Section: Introductionmentioning

confidence: 99%

“…PbTiO3 (PTO), BaTiO3 (BTO), CaTiO3 (CTO), SrTiO3 (STO), PbZrO3 (PZO), Ba-ZrO3 (BZO), CaZrO3 (CZO) and SrZrO3 (SZO) crystals belong to the so-called family of ABO3 perovskites. ABO3 perovskite surfaces are both of fundamental interest for classical basic research as well as they have a huge amount of technologically important applications, such as, for example, capacitors, actuators, charge storage devices, and many others [1][2][3][4], for which the quality of the surface and its structure are essential. From another side, the YAO has a high refractive index, mechanical resistance, optical transparency, chemical inertness and stability, which allows for YAO to be a prospective candidate for many optical applications [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Comparative Ab initio Calculations for ABO3 Perovskite (001), (011) and (111) as well as YAlO3 (001) Surfaces and F Centers

Eglitis¹,

Попов²

2019

J. Nano- Electron. Phys.

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Comparative Ab initio Calculations for ABO3 Perovskite (001), (011) and (111) as well as YAlO3 (001) Surfaces and F Centers By means of the hybrid exchange-correlation functionals, we performed predictive ab initio calculations for industrially most important ABO3 perovskites, like, BaTiO3, SrTiO3, CaTiO3, SrZrO3 and PbZrO3 (001), (011) and (111) surfaces as well as bulk and (001) surface F-centers. From another side we performed comparative ab initio calculations for charged and polar YAlO3 (001) surfaces. For BaTiO3, CaTiO3, SrZrO3 and PbZrO3 perovskite neutral (001) surfaces, in most cases, all upper surface layer atoms relax inwards, whereas all second surface layer atoms relax upwards, and again, all third surface layer atoms relax inwards. The atom relaxation pattern for YAlO3 polar and charged (001) surfaces is completely different from the ABO3 perovskite neutral (001) surfaces. The ABO3 perovskite (001) surface energies are practically equal for both AO and BO2-terminations, and they are considerably smaller than (011) and especially (111) polar and charged surface energies. The atomic displacement magnitudes of nearest neighbor atoms around the (001) surface F-center in ABO3 perovskites are considerably larger than the related displacement magnitudes of nearest neighbor atoms around the bulk F-center. In the ABO3 perovskites the electron charge is considerably better localized inside the bulk F-center than in the (001) surface F-center, where the oxygen vacancy charge is more delocalized over the nearest neighbor atoms than in the bulk Fcenter case. The (001) surface F-center formation energy in the ABO3 perovskites is smaller than the bulk F-center formation energy, which triggers the F-center segregation from the ABO3 perovskite bulk towards its (001) surfaces. In most cases the (001) surface F-center induced defect level in the band gap of ABO3 perovskites is located closer to the (001) surface conduction band bottom than the bulk F-center induced defect level to the bulk conduction band bottom.

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CsPbCl3 nanocrystals dispersed in the Rb0,8Cs0,2Cl matrix studied by far-infrared spectroscopy

Cited by 22 publications

References 35 publications

A new method of growing K2CoxNi1−x(SO4)2*6H2O (x=0; 0.4; 0.8; 1) mixed crystals and their spectral investigation

A new method of growing K2CoxNi1−x(SO4)2*6H2O (x=0; 0.4; 0.8; 1) mixed crystals and their spectral investigation

Synchrotron-based far-infrared spectroscopy of nickel tungstate

Comparative Ab initio Calculations for ABO3 Perovskite (001), (011) and (111) as well as YAlO3 (001) Surfaces and F Centers

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