Dyson–Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy Project supported by the National Natural Science Foundation of China (Grant No. 10774035) and the Qianjiang RenCai Program of Zhejiang Province, China (Grant No. 2007R0010). |
(color online) Magnetization plateau with different parameters D = 0.05 (black), D = 0.1 (green), D = 0.127 (red), and D = 0.15 (blue) under an uniform magnetic field H at zero temperature. |