Nanoscale distortions of the lattice of a ZnSe crystal doped with 3d elements

Дубинин, С. Ф.; Sokolov, V. I.; Teploukhov, S. G.; Parkhomenko, V. D.; Гудков, В. В.; Lonchakov, A. T.; Жевстовских, И. В.; Gruzdev, N. B.

doi:10.1134/s1063783407070062

Cited by 15 publications

(18 citation statements)

References 9 publications

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“…So, the studied crystal over the entire volume corresponds to the sphalerite structure with the face centered cubic (fcc) lattice. We also note that the composition in the range of sufficiently low doping levels, as was established in our earlier study [3], does not affect the solution of the main problem formulated in our present work.…”

Section: Resultsmentioning

confidence: 86%

“…We recall here that, in the case of doping of the ZnSe crystal with Ni, V, Cr, and Fe, the 110 〈 〉 diffuse neutron scattering effects become more com pact in the momentum transfer space as the tempera ture decreases. This means that the sizes of deformed microregions in compounds of this class substantially increase in the low temperature range [1][2][3][4][5]. Thus, the effects of diffuse scattering of thermal neutrons in the case of doping of the Zn 0.99 Cd 0.01 Se crystal with cadmium ions substantially differ from those observed in the case where this crystal is doped with Ni 2+ , V 2+ , Cr 2+ , and Fe 2+ .…”

Section: δQmentioning

confidence: 95%

“…3 does not exceed 2%. It should be noted that the neutron scattering scan of the undoped ZnSe crystal does not exhibit a diffuse maximum [2]. Know ing the half width of the diffuse maximum and using relationship (2), we find the average size of the dis torted nanoregions along the 〈110〉 direction, which is equal to 5.5 nm.…”

Section: δQmentioning

confidence: 98%

“…This means that local deformations of the crystal lattice of the Zn 0.99 Cd 0.01 Se compound on the (001) plane of the reciprocal lattice are isotropic. In our opinion, this fact is of fundamental importance because the nanodeformations of the ZnSe crystal doped with 3d elements in this plane of the reciprocal lattice are anisotropic [1][2][3][4][5].…”

Section: δQmentioning

confidence: 99%

“…This interest is associ ated primarily with the idea of the development of electronic devices with spin polarization of electric current. Previously, we studied compounds doped with 3d elements Me 2+ = Ni, Cr, V, Fe, Mn, and Co [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Inhomogeneous lattice distortions in the Zn0.99Cd0.01Se crystal

et al. 2012

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The structural state of a Zn 0.99 Cd 0.01 Se crystal at temperatures of 78 and 300 K has been investi gated using thermal neutron diffraction. It has been found that the diffraction patterns of the crystal contain diffuse scattering regions in the vicinity of the basic structure reflections, which are independent of temper ature. It has been shown that the effects of diffuse scattering are caused by transverse displacements of lattice atoms, which are induced by impurities of the Cd 2+ ions whose sizes substantially exceed the sizes of the Zn 2+ ions. The obtained results have been used to construct a picture of the influence of cadmium ions on the struc tural state of the crystal under study.

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Section: Resultsmentioning

confidence: 86%

Section: δQmentioning

confidence: 95%

Section: δQmentioning

confidence: 98%

Section: δQmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Inhomogeneous lattice distortions in the Zn0.99Cd0.01Se crystal

et al. 2012

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Neutron diffraction research of local nanodistortions of crystal lattice in diluted magnetic semiconductors Zn_1‐xCo_x S and Zn_1‐xCo_x Se (x =0.01)

Суркова

Дубинин

Maximov

et al. 2012

Phys. Status Solidi C

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Local distortions of the sphalerite crystal structure of Zn1‐xCox S, Zn1‐xCox Se (x =0.01) semiconductor crystals were studied for the first time using thermal neutron diffraction at 300 and 78 K. The diffraction patterns of the crystals were revealed to contain diffuse scattering regions concentrated in the vicinity of the strong Bragg reflections. It was detected for both crystals that the intensity of the neutron diffuse scattering essentially decreases with cooling. Some arguments are given to explain the revealed properties of the diffuse scattering for these crystals in terms of a formation of the vibronic effect leading to the emergence of local nanosized distorted regions. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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