The effect of electron-electron Hubbard interaction on magnetoconductance fluctuations in disordered quantum ring is studied by using a recursive real-space Green's function technique in tight-binding model. The present numerical results improve previous theoretical results for the magnetoconductance fluctuations as a function of magnetic flux compared with experiments. Several new anomalous phenomena at low temperatures, which do not survive at high temperatures, are obtained.
|Number of pages||4|
|Journal||Molecular Crystals and Liquid Crystals Science and Technology Section B: Nonlinear Optics|
|Publication status||Published - 1997|
|Event||Proceedings of the 1997 International Symposium on Quantum Structures for Photonic Applications, QSPA'97 - Sendai, Jpn|
Duration: 1997 Mar 6 → 1997 Mar 8