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首页> 外文期刊>Physica, B. Condensed Matter >Negative magnetoresistance in antidot lattices with saddle points
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Negative magnetoresistance in antidot lattices with saddle points

机译：带有鞍点的解毒点格中的负磁阻

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We have performed quantum-mechanical as well as classical magnetotransport calculations for a lattice of antidots with additional barriers. Both approaches reproduce the experimentally observed well-known commensurability peaks simultaneously with a negative differential magnetoresistance. By comparing both calculations, we find that quantum interference leads to an enhancement of the latter effect because of the increased probability of closed paths due to the insertion of additional potential barriers. We analyze the influence of the strength of inelastic scattering as well as increasing temperatures, i.e. energy averaging, in order to separate the classical and the quantum contributions. (C) 1998 Elsevier Science B.V. All rights reserved. [References: 5]
机译：我们已经对带有附加势垒的解毒剂晶格进行了量子力学以及经典的磁传输计算。两种方法都同时再​​现了实验观察到的众所周知的可比较性峰，同时具有负的差分磁阻。通过比较这两种计算，我们发现量子干扰导致后一种效应的增强，因为由于插入了其他势垒，闭合路径的可能性增加。我们分析了非弹性散射强度以及温度升高（即能量平均）的影响，以分离出经典贡献和量子贡献。 （C）1998 Elsevier Science B.V.保留所有权利。 [参考：5]

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