Zobrazeno 1 - 10
of 22
pro vyhledávání: '"A. D. Molchanova"'
Autor:
Kirill N. Boldyrev, Anastasiia D. Molchanova, Alexey R. Nurmukhametov, Mikhail V. Eremin, Roman V. Pisarev, Marina N. Popova
Publikováno v:
Magnetochemistry, Vol 9, Iss 4, p 95 (2023)
The change in the absorption spectra due to reversal of the direction of light propagation (nonreciprocity of absorption) is a consequence of a simultaneous violation of both time-reversal and spatial-inversion symmetries. Here, we report on a high-r
Externí odkaz:
https://doaj.org/article/7cb081c63c1042b19bc255facf3e8fc8
Autor:
Alexander N. Smirnov, R. M. Dubrovin, Roman V. Pisarev, V. Yu. Davydov, Marina N. Popova, V. P. Petrov, S.G. Nefedov, Dmitry Chernyshov, V. A. Chernyshev, Kirill N. Boldyrev, A. D. Molchanova, M. A. Prosnikov
Publikováno v:
Journal of Alloys and Compounds, 865
Transition metal oxyborates M3(BO3)2 (M = Mn, Co, Ni) belong to a group of materials with the kotoite structure and many of them demonstrate complex magnetic behavior as a result of competing interactions between magnetic ions in nonequivalent crysta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0ec06cad73832414f902ee4f79f33f3
http://hdl.handle.net/2066/233276
http://hdl.handle.net/2066/233276
Autor:
A. D. Molchanova
Publikováno v:
Physics of the Solid State. 60:1957-1965
The results of studies of the absorption spectra of nickel orthoborate Ni3(BO3)2 in the range of electronic d–d-transitions are reported. The obtained data are analyzed in the framework of the crystal field theory. The Ni2+ ions are located in two
Autor:
A. D. Molchanova, Kirill N. Boldyrev
Publikováno v:
Optics and Spectroscopy. 127:33-35
The linear magnetic dichroism in the crystallographically isotropic ab plane of a tetragonal CuB2O4 single crystal has been investigated by high-resolution Fourier spectroscopy at temperatures of 1.4–22 K. Magnetic phase transitions are found at T
Autor:
N. N. Novikova, Anastasia D. Molchanova, Arka Majumdar, Xiaojing Xia, Matthew B. Lim, Daniel R. Gamelin, Marina N. Popova, Kirill N. Boldyrev, E. A. Dobretsova, Sergei A. Klimin, Michael C. De Siena, Anupum Pant, Peter J. Pauzauskie, Yueyang Chen
Publikováno v:
Laser & Photonics Reviews. 15:2100019
Publikováno v:
Low Temperature Physics. 43:728-731
A complex study of the CrBO3 single crystal has been performed by optical and IR spectroscopy methods over a broad temperature range. Factor-group and correlation analyses of the phonon modes are presented. All IR active phonons and their frequencies
Autor:
A. D. Molchanova, R. M. Dubrovin, Kirill N. Boldyrev, A. M. Balbashov, Marina N. Popova, V. Yu. Davydov, Alexander N. Smirnov, M. A. Prosnikov, Roman V. Pisarev
Publikováno v:
Physics of the Solid State. 58:2516-2522
The results are presented on phonon excitations and the electronic structure of Co2TiO4 inverse spinel in which magnetically ordered cobalt ions Co2+ (3d 7) are in equal amounts in tetrahedral and octahedral sublattices below T C = 56 K. Single cryst
Autor:
D. Molchanova, P. Vasilevich
Publikováno v:
Bulletin of the Moskow State Regional University (Linguistics). :168-173
Autor:
M. N. Popova, Alexander N. Smirnov, Roman V. Pisarev, A. D. Molchanova, R. M. Dubrovin, M. A. Prosnikov, V. Yu. Davydov, Kirill N. Boldyrev
Publikováno v:
Physical Review B. 96
Copper borate ${\mathrm{Cu}}_{3}{({\mathrm{BO}}_{3})}_{2}$ is a complex compound with a layered crystallographic structure in which the Jahn-Teller active and magnetic copper ${\mathrm{Cu}}^{2+}$ ions occupy 16 nonequivalent positions in the unit cel
Autor:
Alexander N. Smirnov, A. D. Molchanova, V. Yu. Davydov, Kirill N. Boldyrev, Roman V. Pisarev, M. A. Prosnikov, V. Yu. Kazimirov, M. B. Smirnov, Marina N. Popova, Evgenii M. Roginskii
Publikováno v:
Physical Review B. 93
Nickel orthoborate $\mathrm{N}{\mathrm{i}}_{3}{(\mathrm{B}{\mathrm{O}}_{3})}_{2}$ having a complex orthorhombic structure Pnnm (No. 58, $Z=2$) of the kotoite type is known for quite a long time as an antiferromagnetic material below ${T}_{\mathrm{N}}