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-Chen1, 2, †, Zhou Wang-Huai1, Zhang Jun1, Nan Nan1
       

(color online) (a) Transmission coefficient at zero temperature for various Δ. (b) on the spin singlet side near the critical point in an expanded scale. The curves from top to bottom are for to 0.0904 in steps of 0.0001. (c) Width of the Kondo dip (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.