## 摘要

In this paper we study the energy spectrum of a two-dimensional electron gas (2DEG) in a two-dimensional periodic magnetic field. Both a square magnetic lattice and a triangular one are considered. We consider the general case where the magnetic field in a cell can be of any shape. A general feature of the band structure is bandwidth oscillation as a function of the Landau index. A triangular magnetic lattice on a 2DEG can be realized by the vortex lattice of a superconductor film coated on top of a heterojunction. Our calculation indicates a way of relating the energy spectrum of the 2DEG to the vortex structure. We have also derived conditions under which the effects of a weak magnetic modulation, periodic or not, may be reproduced by an electric potential modulation, and vice versa.

原文 | 英語 |
---|---|

頁（從 - 到） | 10843-10850 |

頁數 | 8 |

期刊 | Physical Review B |

卷 | 50 |

發行號 | 15 |

DOIs | |

出版狀態 | 已發佈 - 1994 |

對外發佈 | 是 |

## ASJC Scopus subject areas

- 凝聚態物理學