Autor: Ezerskaya, E. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: On the Energy Spectrum and Ground-State Properties οf the Decorated Heisenberg Spin Tube
Autorzy:: Cheranovskii, V.
Ezerskaya, E.
Powiązania:: https://bibliotekanauki.pl/articles/1534809.pdf
Data publikacji:: 2010-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.10.Jm
Opis:: The ground-state properties of decorated Heisenberg spin tubes with nearest- and next-nearest-neighbor antiferromagnetic exchange interactions has been studied using perturbation theory and exact diagonalization technique. The possibility of quantum phase transitions mediated by next-nearest neighbor interactions for these tubes is shown.
Źródło:: Acta Physica Polonica A; 2010, 118, 5; 946-947
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Ground-state spin of Hubbard ladder model with infinite electron repulsion
Autorzy:: Cheranovskii, V.
Ezerskaya, E.
Klein, D.
Tokarev, V.
Powiązania:: https://bibliotekanauki.pl/articles/1054813.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.10.Fd
75.10.Jm
Opis:: We apply perturbation theory and cyclic spin permutation formalism to study the lowest energy states of the infinite-repulsion Hubbard model on n-leg ladders with alternating values of one-site energies α_{i} for neighboring rungs. We establish the "ferromagnetic" character of ladder ground-state at electron densities in the interval 1 - (2n)¯¹ ≤ ρ ≤ 1 and sufficiently large alternation of one-site energies of neighbor rungs of the ladder. We also show the stability of this state against the small deviations of the values of α_{i} in contrast to the case of two-leg ladder formed by weakly interacting neighbor rungs with equal one-site energies.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 916-918
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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