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Plasmonic Nonreciprocity Driven by Band Hybridization in Moiré Materials.
Physical Review Letters ( IF 8.6 ) Pub Date : 2020-08-05 , DOI: 10.1103/physrevlett.125.066801
Michał Papaj 1 , Cyprian Lewandowski 1
Affiliation  

We propose a new current-driven mechanism for achieving significant plasmon dispersion nonreciprocity in systems with narrow, strongly hybridized electron bands. The magnitude of the effect is controlled by the strength of electron-electron interactions α, which leads to its particular prominence in moiré materials, characterized by α1. Moreover, this phenomenon is most evident in the regime where Landau damping is quenched and plasmon lifetime is increased. The synergy of these two effects holds great promise for novel optoelectronic applications of moiré materials.

中文翻译:

莫尔材料中的能带杂化驱动的等离子不可逆性。

我们提出了一种新的电流驱动机制,以在具有窄的强杂化电子带的系统中实现显着的等离激元弥散不可逆。效应的大小由电子-电子相互作用的强度控制α,这导致它在莫尔纹材料中特别突出,其特点是 α1个。此外,这种现象在Landau阻尼被淬灭且等离激元寿命增加的状态下最为明显。这两种效应的协同作用为莫尔材料的新型光电应用带来了广阔的前景。
更新日期:2020-08-06
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