Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Alexander Shengelaya"'
Publikováno v:
Condensed Matter, Vol 5, Iss 4, p 63 (2020)
The temperature and magnetic field dependence of resistivity in WO2.9 was investigated. The variation of resistivity with temperature displayed unusual features, such as a broad maximum around 230 K and a logarithmic increase of resistivity below 16
Externí odkaz:
https://doaj.org/article/b864a9d9a1d249a383c3abfbf11f5993
Publikováno v:
Condensed Matter, Vol 5, Iss 3, p 50 (2020)
The temperature dependencies of the in-plane (λab) and out-of-plane (λc) components of the magnetic field penetration depth were investigated near the surface and in the bulk of the electron-doped superconductor Sr0.9La0.1CuO2 by means of magnetiza
Externí odkaz:
https://doaj.org/article/f8edf9b2cfdb492fa1ecb2d4fd3fcf33
Publikováno v:
Nano Studies.
Autor:
T. O. Gegechkori, J.J. Ramsden, Mamniashvili G, M. M. Nadareishvili, Tinatin Zedginidze, E. Chikvaidze, Alexander Shengelaya, T. Gogoladze, S. Gogichaishvili, D. Japaridze, C.V. Ramana, D. Daraselia, T.G. Petriashvili
Publikováno v:
Nanotechnology Perceptions. 16:336-347
Autor:
Alexander Shengelaya
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 35:1727-1728
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 33:301-306
We report results of the search for possible superconducting state in tungsten oxides WO3−x with various oxygen deficiency 0 < x < 1. In samples with one particular composition WO2.9, the signatures of superconductivity with the same transition tem
Autor:
Hoi-Ying N. Holman, Tamar Kartvelishvili, Gia Khatisashvili, D. Daraselia, Nino Asatiani, Tamar Varazi, Alexander Shengelaya, Nelly Sapojnikova, Marina Abuladze, D. Japaridze, Mariam Osepashvili
Publikováno v:
Water, Air, & Soil Pollution. 232
Soil contamination with heavy metals causes heavy environmental problems, in particular toxic effects on plants as well as on animals and humans. This article analyzes the effects of copper, a potentially toxic metal and abundant contaminant, on soil
Autor:
D. Daraselia, D. Japaridze, Grigor Mamniashvili, T.G. Petriashvili, T. O. Gegechkori, Tinatin Zedginidze, M. M. Nadareishvili, E. Chikvaidze, T. Gogoladze, Alexander Shengelaya
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 32:3211-3216
In this work, TiO2 micropowders and nanopowders coated by Ni nanoclusters have been prepared by original electroless deposition method. The presence of Ni nanoclusters at the surface of TiO2 grains was confirmed by measuring the temperature dependenc
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 32:3121-3124
Superconducting properties of YBa2Cu3O7-x (YBCO)/SrTiO3 (STO) polycrystalline composites were investigated. The composites were obtained by rapid thermal processing of the 20% YBCO–80% STO mixtures in the air in the temperature range 700–1000 °C
Autor:
K. A. Müller, Alexander Shengelaya
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 32:3-6
It is remarkable that in over three decades since the discovery of high-temperature superconductivity (HTS) in cuprates, no other class of materials has been found to exhibit this property above the liquid nitrogen boiling point at ambient pressure.