Dyson–Maleev theory of an <i>X X Z</i> ferrimagnetic spin chain with single-ion anisotropy<xref rid="cpb_27_12_127501fn1" ref-type="fn">*</xref><fn id="cpb_27_12_127501fn1"><label>*</label><p>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).</p></fn>

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).

Chen Yu-Ge¹, Li Yin-Xiang^{2, †}, Tian Li-Jun¹, Chen Bin^{2, ‡}

(color online) Internal energy with different parameters λ at finite temperature.