- Tytuł:
- Quantum Phase Transitions in the Kitaev-Heisenberg Model on a Single Hexagon
- Autorzy:
-
Gotfryd, D.
Oleś, A. - Powiązania:
- https://bibliotekanauki.pl/articles/1385471.pdf
- Data publikacji:
- 2015-02
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.10.Jm
75.25.Dk
75.30.Et - Opis:
- We present a detailed analysis of the Kitaev-Heisenberg model on a single hexagon. The energy spectra and spin-spin correlations obtained using exact diagonalisation indicate quantum phase transitions between antiferromagnetic and anisotropic spin correlations when the Kitaev interactions increase. In cluster mean-field approach frustrated nearest neighbor exchange stabilizes the stripe phase in between the Néel phase and frustrated one which evolves towards the Kitaev spin liquid.
- Źródło:
-
Acta Physica Polonica A; 2015, 127, 2; 318-320
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł