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Quantum phase transitions in the Kitaev--Heisenberg model on a single hexagon by Gotfryd, Dorota; Oleś, Andrzej M. is a scholarly article available to read on EtoBox.

What is Quantum phase transitions in the Kitaev--Heisenberg model on a single hexagon about?

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 N\'eel phase and frustrated one which evolves towards the Kitaev spin liquid.

Author

Gotfryd, Dorota; Oleś, Andrzej M.

Published

2015

Language

EN