Zobrazeno 1 - 10
of 215
pro vyhledávání: '"J. Levoska"'
Autor:
J. Levoska, S. Leppävuori
Publikováno v:
Active and Passive Electronic Components, Vol 15, Iss 3-4, Pp 139-146 (1993)
High Tc superconducting YBa2Cu3O7-d thin films and YBa2Cu37-δ/PrBa2Cu3O7-δ superlattices with various periods and layer thicknesses were deposited by laser ablation on SrTiO3 (100) single crystal substrates using an XeCl excimer laser (λ = 308 nm)
Externí odkaz:
https://doaj.org/article/b159e3b6556d40a3ac713dc349528288
Publikováno v:
Active and Passive Electronic Components, Vol 13, Iss 3, Pp 197-209 (1989)
Superconducting thick films of the Y-Ba-Cu-O system prepared by screen-printing and sintering on different substrates were investigated to study the effect of the substrate material on the superconducting properties of the films. These properties wer
Externí odkaz:
https://doaj.org/article/6ffa2436a7f648ed86261bac9e24cad7
Publikováno v:
Journal of Materials Chemistry C. 10:6770-6777
Control of lattice strain in epitaxial films of ABO3 perovskite oxides is crucial for modern understanding and applications of these scientifically and technologically important materials. Here, we show that oxygen vacancies have unique impacts on la
Publikováno v:
Phase Transitions. 88:74-81
Quasi-static polarization induced by dc electric field was studied in a broad range of temperatures in epitaxial films of relaxor ferroelectric PbMg1/3Nb2/3O3 and PbSc1/2Nb1/2O3. The electric field was applied and the response was measured along the
Publikováno v:
Advanced Functional Materials. 23:467-474
The possibility to tailor ferroelectricity by controlling epitaxial strain in thin films and heterostructures of complex metal oxides is well established. Here it is demonstrated that apart from this mechanism, 3D film growth during heteroepitaxy can
Publikováno v:
Integrated Ferroelectrics. 102:29-36
Thin-film capacitor heterostructures were formed by atomic layer deposition of 54 nm thick polycrystalline barium strontium titanate film on silicon substrates using Pt top and bottom electrodes. The dielectric response of capacitors was experimental
Publikováno v:
Ferroelectrics. 373:44-50
Epitaxial thin films of rhombohedral perovskite ferroelectric PbZr0.65Ti0.35O3 were grown on MgO and LaAlO3 substrates using La0.5Sr0.5CoO3 bottom electrode. Presence of ferroelectric nanodomains was evidenced by piezoresponse force microscopy. Dynam
Publikováno v:
Journal of Electroceramics. 24:15-19
In epitaxial films of perovskite ferroelectrics, functionality can be controlled by size-strain-surface effects. Experimental evidence of such a possibility is demonstrated in epitaxial heterostructures of BaTiO3 thin films and of (Ba,Sr)TiO3 superla
Publikováno v:
Metallurgical and Materials Transactions A. 39:462-465
A high-Mn Fe-26Mn-0.14C austenitic steel was hot deformed at 900 °C, 1000 °C, and 1100 °C with the strain rate of 5 s−1 followed by air cooling (AC) or water quenching (WQ). Deformation at 1100 °C results in the occurrence of dynamic recrystall
Autor:
J. Levoska, M. Tyunina
Publikováno v:
Ferroelectrics. 339:85-93
The dynamic dielectric response of epitaxial thin-film PbMg1/3Nb2/3O3, PbSc0.5Nb0.5O3, and Ba0.4Sr0.6TiO3 was experimentally studied as a function of temperature, frequency, and amplitude of ac electric field (to 10 MV/m). In thin-film relaxors at al