Zobrazeno 1 - 10
of 228
pro vyhledávání: '"Vladimir V. Shvartsman"'
Autor:
Fabio Orlandi, Davide Delmonte, Gianluca Calestani, Enrico Cavalli, Edmondo Gilioli, Vladimir V. Shvartsman, Patrizio Graziosi, Stefano Rampino, Giulia Spaggiari, Chao Liu, Wei Ren, Silvia Picozzi, Massimo Solzi, Michele Casappa, Francesco Mezzadri
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
The application of multiferroics is often limited by low ordering temperatures. Here, the authors show that BaFe2O4 is a room temperature antiferromagnet with improper ferroelectricity, suggesting it as a playground for the study of multiferroicity.
Externí odkaz:
https://doaj.org/article/81a1e49271084298b2b9c1cecda3d819
Autor:
Astita Dubey, Soma Salamon, Supun B. Attanayake, Syaidah Ibrahim, Joachim Landers, Marianela Escobar Castillo, Heiko Wende, Hari Srikanth, Vladimir V. Shvartsman, Doru C. Lupascu
Publikováno v:
Frontiers in Bioengineering and Biotechnology, Vol 10 (2022)
Ionic engineering is exploited to substitute Bi cations in BiFe0.95Mn0.05O3 NPs (BFM) with rare-earth (RE) elements (Nd, Gd, and Dy). The sol-gel synthesized RE-NPs are tested for their magnetic hyperthermia potential. RE-dopants alter the morphology
Externí odkaz:
https://doaj.org/article/95a51d10e2dd4a8c943ffad80288dd71
Autor:
João Pedro V. Cardoso, Vladimir V. Shvartsman, Anatoli V. Pushkarev, Yuriy V. Radyush, Nikolai M. Olekhnovich, Dmitry D. Khalyavin, Erik Čižmár, Alexander Feher, Andrei N. Salak
Publikováno v:
Materials, Vol 15, Iss 19, p 6998 (2022)
The annealing behavior of (1-x)BiMg0.5Ti0.5O3–xBiZn0.5Ti0.5O3 [(1-x)BMT–xBZT] perovskite solid solutions synthesized under high pressure was studied in situ via X-ray diffraction and piezoresponse force microscopy. The as prepared ceramics show a
Externí odkaz:
https://doaj.org/article/39f0c0c8509749aabca3ef7d2aa1ffda
Publikováno v:
Materials, Vol 15, Iss 9, p 3151 (2022)
Polymer materials are actively used in dielectric capacitors, in particular for energy storage applications. An enhancement of the stored energy density can be achieved in composites of electroactive polymers and dielectric inorganic fillers with a h
Externí odkaz:
https://doaj.org/article/730bca11035148f9a97dd20f5d800c55
Autor:
Andrei N. Salak, João Pedro V. Cardoso, Joaquim M. Vieira, Vladimir V. Shvartsman, Dmitry D. Khalyavin, Elena L. Fertman, Alexey V. Fedorchenko, Anatoli V. Pushkarev, Yury V. Radyush, Nikolai M. Olekhnovich, Róbert Tarasenko, Alexander Feher, Erik Čižmár
Publikováno v:
Magnetochemistry, Vol 7, Iss 11, p 151 (2021)
The phase content and sequence, the crystal structure, and the magnetic properties of perovskite solid solutions of the (1−y)BiFeO3–yBiZn0.5Ti0.5O3 series (0.05 ≤ y ≤ 0.90) synthesized under high pressure have been studied. Two perovskite pha
Externí odkaz:
https://doaj.org/article/865ad8d936d14b6296b319ebb21aa803
Autor:
Nicole Bartek, Vladimir V. Shvartsman, Houssny Bouyanfif, Alexander Schmitz, Gerd Bacher, Selina Olthof, Svetlana Sirotinskaya, Niels Benson, Doru C. Lupascu
Publikováno v:
Materials, Vol 14, Iss 22, p 6841 (2021)
Ferroelectric materials have gained high interest for photovoltaic applications due to their open-circuit voltage not being limited to the band gap of the material. In the past, different lead-based ferroelectric perovskite thin films such as Pb(Zr,T
Externí odkaz:
https://doaj.org/article/e4f3feec36394caaa3956737a76b486e
Autor:
Yusra Hambal, Vladimir V. Shvartsman, Daniil Lewin, Chieng Huo Huat, Xin Chen, Ivo Michiels, Qiming Zhang, Doru C. Lupascu
Publikováno v:
Polymers, Vol 13, Iss 8, p 1343 (2021)
The temperature dependence of the dielectric permittivity and polarization hysteresis loops of P(VDF-TrFE-CFE) polymer films with different compositions are studied. Among them, the three compositions, 51.3/48.7/6.2, 59.8/40.2/7.3, and 70/30/8.1, are
Externí odkaz:
https://doaj.org/article/fcaa5ed9fdb74d3c95a3492c4abfdcd2
Autor:
Simon Siebeneicher, Friedrich Waag, Marianela Escobar Castillo, Vladimir V. Shvartsman, Doru C. Lupascu, Bilal Gökce
Publikováno v:
Nanomaterials, Vol 10, Iss 2, p 359 (2020)
Laser fragmentation of colloidal submicron-sized bismuth ferrite particles was performed by irradiating a liquid jet to synthesize bismuth ferrite nanoparticles. This treatment achieved a size reduction from 450 nm to below 10 nm. A circular and an e
Externí odkaz:
https://doaj.org/article/b5d713572deb41f89ed61e4dea1f0e88
Autor:
Igor O. Pariy, Anna A. Ivanova, Vladimir V. Shvartsman, Doru C. Lupascu, Gleb B. Sukhorukov, Tim Ludwig, Ausrine Bartasyte, Sanjay Mathur, Maria A. Surmeneva, Roman A. Surmenev
Publikováno v:
Polymers, Vol 11, Iss 6, p 1065 (2019)
This study was dedicated to the investigation of poly(vinylidene fluoride) (PVDF) micropillar arrays obtained by soft lithography followed by phase inversion at a low temperature. Reduced graphene oxide (rGO) was incorporated into the PVDF as a nucle
Externí odkaz:
https://doaj.org/article/e9e5eb8b18eb4e20a4644bef2d404074
Publikováno v:
Materials, Vol 10, Iss 9, p 1032 (2017)
Polar structures of CaxBa1−xNb2O6 (CBN100x) single crystals were investigated using piezoresponse force microscopy. Increasing Ca content results in decreasing domain size and enhancement of the polar disorder. For the composition with x = 0.32 the
Externí odkaz:
https://doaj.org/article/535ebb11a3424f55bb8322d70fa8358a