A transfer matrix approach is used to study the electronic transport in graphene superlattices with long-range correlated barrier spacements. By considering the low-energy electronic excitations as massless Dirac fermions, we compute by transmission spectra of graphene superlattices with potential barriers having spacements randomly distributed with long-range correlations governed by a power-law spectral density $S\left(k\right)\propto 1∕k^{\alpha }$. We show that at large incidence angles, the correlations in the disorder distribution do not play a significant role in the electronic transmission. However, long-range correlations suppress the Anderson localization as normal incidence is approached and a band of transmitting modes sets up reminiscent of Klein tunneling.

转移矩阵方法用于研究具有长期相关势垒间距的石墨烯超晶格中的电子传输。通过将低能电子激发视为无质量的狄拉克费米子，我们通过透射能谱来计算石墨烯超晶格的势垒，势垒的间距随机分布，并且幂律谱密度决定了长距离相关性$\mathrm{小号}（ķ）\propto \mathrm{1个}∕{ķ}^{\alpha }$。我们表明，在大入射角下，无序分布中的相关性在电子传输中不发挥重要作用。但是，随着接近法向入射，远距离相关性抑制了安德森定位，并且传输模式的频带建立起让人联想起克莱因隧道效应的现象。