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Nonequilibrium processes and ferroelectric phase transition in PbGeTe(Ga) crystals

Autor: V. I. Shtanov, E.I. Slynko, V.V. Pryadun, B. A. Akimov, Dmitry Khokhlov, Ludmila I. Ryabova

Publikováno v: Low Temperature Physics. 30:908-911

The impedance of single-crystal samples of PbTe(Ga) and Pb1−xGexTe(Ga) (0⩽x⩽0.095) is investigated in the frequency range from 102 to 106 Hz and temperature range 4.2–300 K. The temperature dependence of the capacitance of all the Pb1−xGexT

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6592faea51a318cf6fa2311015d62aa
https://doi.org/10.1063/1.1820022

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Autor: B. A. Akimov, M. K. Sharov, Ya. A. Ugai, A. M. Samoilov, O. B. Yatsenko

Publikováno v: Inorganic Materials. 38:12-16

Thin PbTe films on Si substrates were doped with Ga via annealing in the vapor produced by heating a Ga(l) + GaTe(s) mixture (GaTe(s) + L1+ Vequilibrium). Electrical measurements showed that the vapor-phase doping reduced the hole concentration in th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f46e92ee566409942daabc2d5ece7aa
https://doi.org/10.1023/a:1013687024227

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Electrical Properties of Nanocrystalline n-SnO2 to Single Crystal p-Si Interfaces under Gas Adsorption Conditions

Autor: Alexander Gaskov, Ludmila I. Ryabova, Marina Rumyantseva, Roman B. Vasiliev, B. A. Akimov

Publikováno v: physica status solidi (a). 188:1093-1104

We present a study of heterostructures based on thin n-SnO 2 layers prepared by means of an aerosol pyrolysis on a single crystalline p-Si substrate. SnO 2 films are composed of 6-8 nm grains segregated into agglomerates of about 0.1 μm providing a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd753ab71ae222173c052c37b5dbc38e
https://doi.org/10.1002/1521-396x(200112)188:3<1093::aid-pssa1093>3.0.co

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Memory effect and its switching by electric field in solid-state gas sensors

Autor: Marina Rumyantseva, Roman B. Vasiliev, B. A. Akimov, Michel Langlet, Alexander Gaskov, Ludmila I. Ryabova, M. Labeau

Publikováno v: Materials Science and Engineering: B. 77:106-109

The Au/n-SnO2/SiO2/p-Si/Al heterostructures were grown using aerosol-gel and spray pyrolysis methods. The effect of capacitance memory was discovered in the presence of polar gas molecules: C2H5OH, NH3, H2O. The mechanism of gas sensitivity, capacita

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3386d1e0aad3799fba160c8e6b91517
https://doi.org/10.1016/s0921-5107(00)00479-7

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Charge transport in photosensitive nanocrystalline PbTe(In) films in an alternating electric field

Autor: Zinovy Dashevsky, Alexandr Dobrovolsky, T. A. Komissarova, B. A. Akimov, V. Kasiyan, Ludmila I. Ryabova, Dmitry Khokhlov

Publikováno v: International Journal of Materials Research. 100:1252-1254

Frequency and temperature dependences of the impedance components have been investigated in darkness and under illumination for PbTe(In) nanocrystalline films. Synthesis of the films was performed using evaporation of a target source to a cooled glas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec0a854c765a012797fbf85c96a687e5
https://doi.org/10.3139/146.110183

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Electric-field-controlled memory effect in heterostructures for gas sensors

Autor: B. A. Akimov, Marina Rumyantseva, Alexander Gaskov, Ludmila I. Ryabova, R. B. Vasil’ev, M. Labeau, Michel Langlet

Publikováno v: Technical Physics Letters. 25:471-474

A capacitive gas sensor has been created on the basis of an n-SnO2/SiO2/p-Si heterostructure with two successive oxide layers. The presence of polar C2H5OH, NH3, and H2O gas molecules in air leads to a significant increase in the capacitance of the s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f2e8e1d52d5b60abf76f20213d1e1d56
https://doi.org/10.1134/1.1262531

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