Experimental and Theoretical Analysis οf PbTe-CdTe Solid Solution Grown by Physical Vapour Transport Method

Szot, M.; Szczerbakow, A.; Dybko, K.; Kowalczyk, L.; Smajek, E.; Domukhovski, V.; Łusakowska, E.; Dziawa, P.; Mycielski, A.; Story, T.; Bukała, M.; Galicka, Marta; Sankowski, Piotr; Buczko, R.; Kacman, P.

doi:10.12693/aphyspola.116.959

Cited by 26 publications

(37 citation statements)

References 5 publications

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“…The single crystals of (Pb,Cd)Te solid solution containing 2% of CdTe as well as pure PbTe were grown by SSVG method at the Institute of Physics PAS [8][9][10][11]. The structure quality of samples and the chemical composition of the (Pb,Cd)Te solid solution were determined by X-ray powder diffraction utilizing X'Pert Philips (PANalytical) diffractometer and the Cu K α1 radiation.…”

Section: Experimental and Calculation Detailsmentioning

confidence: 99%

“…However, CdTe is a semiconductor crystallizing in the zinc blende structure and the difference in PbTe and CdTe crystal symmetry for many years was a reason for serious difficulties in a growth of (Pb,Cd)Te solid solution. Recent successful growth of big, metastable (Pb,Cd)Te crystals with the RS structure by self-selecting vapour growth (SSVG) method in the Institute of Physics PAS changed this situation [8][9][10][11]. Due to the application of SSVG technique solid solution containing up to 12% of CdTe can be obtained in the form of single crystals with the volume exceeding 1 cm 3 .…”

Section: Introductionmentioning

confidence: 99%

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Inelastic X-Ray Scattering Studies of Phonon Dispersion in PbTe and (Pb,Cd)Te Solid Solution

et al. 2016

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PbTe and its solid solution (Pb,Cd)Te containing 2% of CdTe and PbTe grown by self-selecting vapour growth technique were investigated by inelastic X-ray scattering using synchrotron radiation. The ID28 beamline at ESRF with the incident photon energy of 17794 eV and the energy resolution of 3 meV was applied for that purpose. The measurements were performed at room temperature along [001]-type high symmetry direction in the Brillouin zone. In spite of a very low energy of phonon branches they can be determined by inelastic X-ray scattering with a high accuracy. The transversal acoustic phonon dispersion obtained by inelastic X-ray scattering corresponds well to those resulting from inelastic neutron scattering measurements and ab initio calculations. Apart from expected structures corresponding to the bulk phonons an additional scattering related to the crystal surface properties was observed in the inelastic X-ray scattering spectra. The analysis performed with the use of secondary ion mass spectroscopy technique demonstrated a presence of a thin oxide layer at sample surfaces.

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Section: Experimental and Calculation Detailsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Inelastic X-Ray Scattering Studies of Phonon Dispersion in PbTe and (Pb,Cd)Te Solid Solution

et al. 2016

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“…6,7,16 Recently, high quality single Pb 1−x Cd x Te crystals with x as high as 0.11 were obtained 17 by self-selecting vapor growth method.…”

Section: Introductionmentioning

confidence: 99%

Structural and electronic properties of Pb1−xCdxTe and Pb1
Bukała
¹
,
Sankowski
²
,
Buczko
³

et al. 2012
Phys. Rev. B
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A systematic theoretical study of two PbTe-based ternary alloys, Pb1−xCdxTe and Pb1−xMnxTe, is reported. First, using ab initio methods we study the stability of the crystal structure of CdTePbTe solid solutions, to predict the composition for which rock-salt structure of PbTe changes into zinc-blende structure of CdTe. The dependence of the lattice parameter on Cd (Mn) content x in the mixed crystals is studied by the same methods. The obtained decrease of the lattice constant with x agrees with what is observed in both alloys. The band structures of PbTe-based ternary compounds are calculated within a tight-binding approach. To describe correctly the constituent materials new tight-binding parameterizations for PbTe and MnTe bulk crystals as well as a tight-binding description of rock-salt CdTe are proposed. For both studied ternary alloys, the calculated band gap in the L point increases with x, in qualitative agreement with photoluminescence measurements in the infrared. The results show also that in p-type Pb1−xCdxTe and Pb1−xMnxTe mixed crystals an enhancement of thermoelectrical power can be expected.

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“…This set of curves is planed to be compared with the tight binding calculation of ternary crystal band structure [8].…”

Section: Discussionmentioning

confidence: 99%

“…This system allows to grow the metastable Pb 1−x Cd x Te crystals in the temperature range of stability with rapid cooling to freeze the high-temperature phase existing between the solidus line and the bottom temperature of stability known from the published phase diagram [3]. The structural, electrical and optical properties were studied experimentally and theoretically [8,9]. facets were obtained with FWHM rocking curve values of below 2 arcmin and almost absolutely uniform composition in respect to the CdTe molar fraction x.…”

Section: Materials and Experimental Conditionsmentioning

confidence: 99%

Photoemission spectra of frozen rock salt Pb1−xCdxTe crystal

Orłowski

Szczerbakow

Kowalski

et al. 2011

Journal of Electron Spectroscopy and Related Phenomena

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a b s t r a c tThe bulk single crystals of Pb 1−x Cd x Te were obtained by self-selecting vapor growth (SSVG) method with proper quenching. Tunable high energy X-ray photoemission spectroscopy (THE-XPS) and ultraviolet photoemission spectroscopy (UPS) were applied to study the crystals electronic structure of valence band and core level regions. The valence band density of states distribution spectra remarkably changes with the crystal composition. In most cases obtained valence band spectra of ternary crystal with dominating of ionic bonding can be in first approximation treated as a sum of the components spectra. In the case of measured Pb 1−x Cd x Te ternary crystal this first order approximation does not follow the rule and inclination of ternary crystal spectra possesses some differences from the sum of spectra measured for crystal PbTe and CdTe. The increase of Cd contents in the crystals leads to appearance of an additional density of states in the large part of the valence band, for binding energy range up to 10 eV.

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Experimental and Theoretical Analysis οf PbTe-CdTe Solid Solution Grown by Physical Vapour Transport Method

Cited by 26 publications

References 5 publications

Inelastic X-Ray Scattering Studies of Phonon Dispersion in PbTe and (Pb,Cd)Te Solid Solution

Inelastic X-Ray Scattering Studies of Phonon Dispersion in PbTe and (Pb,Cd)Te Solid Solution

Structural and electronic properties of Pb1−xCdxTe and Pb1
Bukała
¹
,
Sankowski
²
,
Buczko
³

et al. 2012
Phys. Rev. B
Self Cite
24
5
6
0
View full text Add to dashboard Cite

Photoemission spectra of frozen rock salt Pb1−xCdxTe crystal

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Experimental and Theoretical Analysis οf PbTe-CdTe Solid Solution Grown by Physical Vapour Transport Method

Cited by 26 publications

References 5 publications

Inelastic X-Ray Scattering Studies of Phonon Dispersion in PbTe and (Pb,Cd)Te Solid Solution

Inelastic X-Ray Scattering Studies of Phonon Dispersion in PbTe and (Pb,Cd)Te Solid Solution

Structural and electronic properties of Pb1−xCdxTe and Pb1Bukała1, Sankowski2, Buczko3 et al. 2012Phys. Rev. BSelf Cite24560View full textAdd to dashboardCite

Photoemission spectra of frozen rock salt Pb1−xCdxTe crystal

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Structural and electronic properties of Pb1−xCdxTe and Pb1
Bukała
¹
,
Sankowski
²
,
Buczko
³

et al. 2012
Phys. Rev. B
Self Cite
24
5
6
0
View full text Add to dashboard Cite