Zobrazeno 1 - 10
of 52
pro vyhledávání: '"V. O. Cheranovskii"'
Autor:
M. Gen, T. Nomura, D. I. Gorbunov, S. Yasin, P. T. Cong, C. Dong, Y. Kohama, E. L. Green, J. M. Law, M. S. Henriques, J. Wosnitza, A. A. Zvyagin, V. O. Cheranovskii, R. K. Kremer, S. Zherlitsyn
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 033065 (2019)
We report on the magnetocaloric effect and ultrasound studies of the frustrated quasi-one-dimensional spin-1/2 compound LiCuVO_{4}, evidencing a spin-nematic state. The magnetic Grüneisen parameter diverges at the transition to the spin-nematic phas
Externí odkaz:
https://doaj.org/article/36e2cddb0df74d7a9f08acdfbc85c12b
Publikováno v:
Low Temperature Physics. 49:438-442
The energy spectra and low-temperature magnetic properties of two one-dimensional Heisenberg mixed spin ( s = 1, 1/2) systems, namely decorated two-leg mixed spin ladders with the lattice topology of polyacene, are studied. The gapless character of t
Autor:
V. V. Slavin, V. O. Cheranovskii
Publikováno v:
Journal of Low Temperature Physics. 206:182-190
Autor:
V. V. Slavin, V. O. Cheranovskii
Publikováno v:
Zeitschrift für Naturforschung B. 76:797-802
The exact diagonalization (ED) approach and Quantum Monte-Carlo (QMC) method were used for the study of the lowest energy states and low-temperature magnetic properties of some disordered 1D Heisenberg spin-1/2 systems formed by two types of three-sp
Publikováno v:
Low Temperature Physics. 47:443-448
A class of frustrated one-dimensional periodic Heisenberg spin systems formed either by triangular unit cells with spin 1/2 or by composite unit cells formed by two different structural units, triangles and small linear segments formed by an odd numb
Publikováno v:
Low Temperature Physics. 46:683-687
The magnetic properties of narrow zigzag graphene nanoribbons with periodically embedded atoms of transition metals have been studied in the framework of Heisenberg spin Hamiltonian. We have proposed the simple effective model to give a semi-qualitat
Autor:
E. V. Ezerskaya, V. O. Cheranovskii
Publikováno v:
Acta Physica Polonica A. 137:631-633
Publikováno v:
International Journal of Quantum Chemistry. 121
Publikováno v:
Low Temperature Physics. 43:1294-1297
It is shown that for finite cyclic systems described by two band Hubbard Hamiltonian with strong electron repulsion the reduction to effective t–J model may give incorrect description of the ground state symmetry due to neglect of the correlated ho
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 31:1369-1373
We apply perturbation theory and cyclic spin permutation formalism to study the lowest energy states of the infinite-repulsion Hubbard model on finite fragments of n-leg ladder rings and show jump-wise behavior of the ground state spin S 0 as a funct