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) Charge occupation on each dot, (b) spin–spin correlation between two dots, and (c) local spin for the dots at zero temperature as functions of level difference Δ. The remaining parameters are given by , , , , and .