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 |
| The spin gap Δ S and charge gap Δ C as functions of U and system length N for panels (a)–(d) L 0 = 2 and panels (e) and (f) L 0 = 3. ε = − U /2. |
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