Structure-dependent metal–insulator transition in one-dimensional Hubbard superlattice
Zhang Liang-Liang†a) 
, Huang Jina) , Duan Cheng-Bob) , Wang Wei-Zhonga)
, Huang Jin
Structure-dependent metal–insulator transition in one-dimensional Hubbard superlattice |
|
Zhang Liang-Liang†
, Huang Jin |
| Local moment at site i for L 0 = 2 (a), 3 (b) and 4 (c). Squares refer to U = 4 and triangles to U = 16; dashed and dotted lines denote the local moment of the Hubbard model with U = 4 and 16, respectively. ε = − U /2. |
| |