Kosterlitz–Thouless transition, spectral property and magnetic moment for a two-dot structure with level difference<xref rid="cpb_26_6_067501fn1" ref-type="fn">*</xref><fn id="cpb_26_6_067501fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant No. 11504102), the Special Fund for Theoretical Physics of the National Natural Science Foundation of China (Grant No. 11647133), the Doctoral Scientific Research Foundation of China (Grant No. BK201407), and the Major Scientific Research Project Pre-funds of Hubei University of Automotive Technology, China (Grant No. 2014XY06).</p></fn>

Kosterlitz–Thouless transition, spectral property and magnetic moment for a two-dot structure with level difference**

Project supported by the National Natural Science Foundation of China (Grant No. 11504102), the Special Fund for Theoretical Physics of the National Natural Science Foundation of China (Grant No. 11647133), the Doctoral Scientific Research Foundation of China (Grant No. BK201407), and the Major Scientific Research Project Pre-funds of Hubei University of Automotive Technology, China (Grant No. 2014XY06).

Xiong Yong-Chen^{1, 2, †}, Zhou Wang-Huai¹, Zhang Jun¹, Nan Nan¹

(color online) (a) Temperature-dependent magnetic moment for different Δ. The curves from top to bottom are for , 0.05, 0.075, 0.086, 0.0865, 0.087, 0.0885, 0.10, and 0.16 respectively. (b) Detailed for different Δ on the singlet side near the critical point . The curves from top to bottom are for to 0.0894 in steps of 0.0002. (c) Screened temperature (solid line with triangles) extracted from panel (b) and its fitting exponential function (solid line with circles). The remaining parameters are the same as those in Fig. 1.