波纹石墨烯中的中能隙态：从头计算和有效场论
Midgap states in corrugated graphene: Ab-initio calculations and effective field theory
摘要：
我们研究了波纹状石墨烯的电子性质，并通过将第一性原理计算与有效场论相结合，展示了波纹诱导的伪磁场如何改变石墨烯的低能电子性质。研究了在费米能级附近对应于伪朗道能级的平带的形成随波纹参数的变化。淬火和放松波纹原来是根本不同的是这方面：它表明，无论是数值和分析，淬火波纹退火可以破坏平带。
英文摘要：
We investigate the electronic properties of corrugated graphene and show how rippling-induced pseudomagnetic fields alter graphene's low-energy electronic properties by combining first principles calculations with an effective field theory. The formation of flat bands near the Fermi level corresponding to pseudo-Landau levels is studied as a function of the rippling parameters. Quenched and relaxed ripples turn out to be fundamentally different is this respect: It is demonstrated, both numerically and analytically, that annealing of quenched ripples can destroy the flat bands.
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