Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Pchelkina Z"'
Publikováno v:
JETP Letters, 2023, Vol. 118, No. 10, pp. 738-741
Rattling phonon modes are known to be origin of various anomalous physical properties such as superconductivity, suppression of thermal conductivity, enhancement of specific heat etc. By means of DFT+$U$ calculations we directly show presence of the
Externí odkaz:
http://arxiv.org/abs/2401.01205
Autor:
Kazak, N. V., Platunov, M. S., Knyazev, Yu. V., Molokeev, M. S., Gorev, M. V., Ovchinnikov, S. G., Pchelkina, Z. V., Gapontsev, V. V., Streltsov, S. V., Bartolomé, J., Arauzo, A., Yumashev, V. V., Gavrilkin, S. Yu., Wilhelm, F., Rogalev, A.
Publikováno v:
Phys. Rev. B 103, 094445 (2021)
The magnetic contribution of the Co3+ ions in Co3BO5 has been investigated using the Co (K-edge) XMCD, dc magnetic susceptibility, and heat capacity measurements. The crystal structure of Co3BO5 single crystal has been solved in detail at the T range
Externí odkaz:
http://arxiv.org/abs/2009.05725
The electronic and magnetic properties of clinopyroxene CaMnGe$_2$O$_6$ were studied using density function calculations within the GGA+U approximation. It is shown that anomalous ferromagnetic ordering of neighboring chains is due to a "common-enemy
Externí odkaz:
http://arxiv.org/abs/1910.10530
Autor:
Pchelkina, Z. V.1,2 (AUTHOR), Komleva, E. V.1,2 (AUTHOR), Irkhin, V. Yu.1 (AUTHOR), Long, Y.3,4 (AUTHOR), Streltsov, S. V.1,2 (AUTHOR) streltsov@imp.uran.ru
Publikováno v:
JETP Letters. Nov2023, Vol. 118 Issue 10, p738-741. 4p.
Autor:
Pchelkina, Z. V., Mazurenko, V. V., Volkova, O. S., Deeva, E. B., Morozov, I. V., Troyanov, S. I., Werner, J., Koo, C., Klingeler, R., Vasiliev, A. N.
Publikováno v:
Phys. Rev. B 97, 144420 (2018)
Small single crystals of Rb$_3$Ni$_2$(NO$_3$)$_7$ were obtained by crystallization from anhydrous nitric acid solution of rubidium nitrate and nickel nitrate hexahydrate. The basic elements of the crystal structure of this new compound are isolated s
Externí odkaz:
http://arxiv.org/abs/1702.00979
Publikováno v:
Phys. Rev. B 94, 205148 (2016)
A tendency to form benzene-like molecular orbitals has been recently shown to be a common feature of the $4d$ and $5d$ transition metal oxides with a honeycomb lattice. This tendency competes with other interactions such as the spin-orbit coupling an
Externí odkaz:
http://arxiv.org/abs/1607.08847
Autor:
Zatsepin, D. A., Zatsepin, A. F., Boukhvalov, D. W., Kurmaev, E. Z., Pchelkina, Z. V., Gavrilov, N. V.
The results of XPS core-level and valence band measurements, photoluminescence spectra of a-SiO2 implanted by Zn-ions (E=30 keV, D=1*1017 cm^-2) and Density Functional Theory calculations of electronic structure as well as formation energies of struc
Externí odkaz:
http://arxiv.org/abs/1510.00106
Autor:
Pchelkina, Z. V., Solovyev, I. V.
The effect of orbital degrees of freedom on the exchange interactions in the spin-1 quasi-one-dimensional antiferromagnet CaV2O4 is systematically studied. For this purpose a realistic low-energy model with the parameters derived from the first-princ
Externí odkaz:
http://arxiv.org/abs/1410.7136
The method of electronic structure calculations for strongly correlated disordered materials is developed employing the basic idea of coherent potential approximation (CPA). Evolution of electronic structure and spin magnetic moment value with concen
Externí odkaz:
http://arxiv.org/abs/1402.6789
Autor:
Streltsov, S. V., Pchelkina, Z. V., Khomskii, D. I., Skorikov, N. A., Anokhin, A. O., Shvachko, Yu. N., Korotin, M. A., Anisimov, V. I., Ustinov, V. V.
Publikováno v:
Phys. Rev. B 89, 014427 (2014)
Using ab initio band structure and model calculations we studied magnetic properties of one of the Mn$_4$ molecular magnets (Mn4(hmp)6), where two types of the Mn ions exist: Mn3+ and Mn2+. The direct calculation of the exchange constants in the GGA+
Externí odkaz:
http://arxiv.org/abs/1312.6390