Ding, L.J.; Zhong, Y.; Fan, S.W.; Huang, X.P.; Zhu, L.Y. - In: Physica A: Statistical Mechanics and its Applications 423 (2015) C, pp. 1-10
The quantum phase transitions (QPTs) and magnetization plateau properties, together with magnetocaloric effect (MCE) of the tetrameric chain are investigated by means of Green’s function theory. We reveal the uniform, dimeric and gapped (gapless) tetrameric phases, which are explicitly...