Zobrazeno 1 - 10
of 16
pro vyhledávání: '"L V, Kovalev"'
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 0, Iss 3, Pp 63-68 (2019)
Single-phase nanosized Sr2FeMoO6-δ powders were synthesized by citrate-gel method at pH = 4, 6, 9, with various degrees of superstructural ordering of Fe3+ and Mo5+ cations ( P = 65 % for pH = 4, P = 51 % for pH = 6 and P = 20 % for pH = 9). Accordi
Externí odkaz:
https://doaj.org/article/3fe5052c1e184f11836a8acc516c2071
Publikováno v:
Crystallography Reports. 62:40-49
The crystal and magnetic structures of a solid solution of double perovskite Ba2 – x Sr x FeMoO6 (x = 0–1.6) have been investigated by neutron diffraction. The high-resolution diffraction patterns have provided precise information about the chang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be1f13d80c795844dda357322d698c82
https://doi.org/10.1134/s1063774517010254
https://doi.org/10.1134/s1063774517010254
Autor:
L. V. Kovalev, Marta Yarmolich, Alexander Petrov, Dong Hyun Kim, Nikolay Kalanda, Dwi Nanto, Seong Cho Yu, Suhk Kun Oh, Djati Handoko, Thanh Tran Dang, Sergey Demyanov
Publikováno v:
Solid State Phenomena. :364-367
We have investigated temperature-dependent magnetic hysteresis loop behavior of Ba2-xLaxFeMoO6 with double perovskite structure by means of a vibrating sample magnetometer (VSM). As partial substitution of Ba2+ by La3+ is varied from x = 0.1 to 0.3,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebba3b6eaf201cdacd449bfb693d334b
https://doi.org/10.4028/www.scientific.net/ssp.233-234.364
https://doi.org/10.4028/www.scientific.net/ssp.233-234.364
Autor:
Suhk Kun Oh, Seong Cho Yu, Marta Yarmolich, Tran Dang Thanh, Dong-Hyun Kim, L. V. Kovalev, Nikolay Kalanda, Sergey Demyanov
Publikováno v:
Current Applied Physics. 14:886-891
In this work, the magnetic properties and critical behavior around ferromagnetic–paramagnetic (FM–PM) phase transition in Ba1.7La0.3FeMoO6 compound have been investigated in detail. This compound exhibits a second-order magnetic phase transition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa99e9ae38223becaa269e623e237f2b
https://doi.org/10.1016/j.cap.2014.03.019
https://doi.org/10.1016/j.cap.2014.03.019
Publikováno v:
Low Temperature Physics. 37:843-846
The present paper shows that inhomogeneity in magnetic structure of Sr2FeMoO6–δ metal oxide compounds, that essentially depends on synthesis conditions, leads to different degrees of superstructural ordering of Fe3+ and Mo5+ cations. According to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2c328f781bea99bb88fc3b3aec5eb54
https://doi.org/10.1063/1.3670028
https://doi.org/10.1063/1.3670028
Autor:
Maria Balasoiu, Vitalii Turchenko, A. S. Doroshkevich, N. A. Kalanda, Nicoleta Lupu, Marta Yarmolich, B. N. Savenko, Ye V. Lukin, L. V. Kovalev, Alexander Petrov
Publikováno v:
Journal of Physics: Conference Series. 994:012014
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec78aa6c071ee70bfa971efddae6802f
https://doi.org/10.1088/1742-6596/994/1/012014
https://doi.org/10.1088/1742-6596/994/1/012014
Autor:
M. R. Soares, J. C. Waerenborgh, L. V. Kovalev, N. A. Kalanda, Nikolai A. Sobolev, Mikhail L. Zheludkevich, M. V. Yarmolich
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Strontium ferromolybdate (Sr2FeMoO6-delta, SFMO) is a material exhibiting promising magnetoresistive properties. We have synthesized SFMO samples out of simple oxides (SrCO3, Fe2O3, and MoO3) or partially reduced SrFeO3-x (SFO) and SrMoO4-y (SMO) pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65665751ea48dee634fbbd34e93730dc
http://hdl.handle.net/10773/20521
http://hdl.handle.net/10773/20521
Autor:
E. A. Trusova, Alexander Petrov, L. V. Kovalev, K. V. Vokhmintsev, N. A. Kalanda, G. G. Gorokh, Sergey Demyanov, V. P. Korneev
Publikováno v:
Physics, Chemistry and Applications of Nanostructures.
Comparable studies of phase composition, dispersity and magnetic properties of Sr2FeMoO6 powders obtained by the solid-phase synthesis and the modified sol-gel method have been carried out. The powder obtained by the solid-phase synthesis has h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9c14737b6571d7bd4b659b76c2bb1f7
https://doi.org/10.1142/9789814460187_0134
https://doi.org/10.1142/9789814460187_0134
Autor:
S. E. Demyanov, Nikolay Kalanda, V. M. Garamus, Mikhail V. Avdeev, Regine Willumeit, L. V. Kovalev, Mikhail L. Zheludkevich
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
A comparative X-ray diffraction study of the initial single-phase metal-oxide compound-strontium iron molybdate Sr2FeMoO6 - delta (SFMO)-and that subjected to additional isothermal annealing shows that this heat treatment leads to the appearance of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52cd3bfd49d850dca820c823cd2dc8c4
Charge transfer processes and magnetoresistance in strontium ferromolybdate with dielectric barriers
Autor:
Nikolay Kalanda, V. M. Garamus, Mikhail L. Zheludkevich, Nikolai A. Sobolev, L. V. Kovalev, Regine Willumeit
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The Sr2FeMoO6-delta compound attracts the attention of researchers due to a high Curie temperature, large values of negative magnetoresistance at room temperature and a practically 100% spin polarization of conduction electrons. We have studied the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c6314f862b443b5789f4e10722ec4cc