论文标题
隧道光谱作为2D磁异构结构中分数化的探针
Tunneling spectroscopy as a probe of fractionalization in 2D magnetic heterostructures
论文作者
论文摘要
在本文中，我们为磁性或量子激励提供了2D到2D隧道光谱的理论，并将其应用于石墨烯/超层烯$α的Van-der-Waals异质结构的描述 - {\ rm rucl} _3 $。我们研究了这些异质结构的差分电导和非弹性电子隧道谱（IET）的行为。 IET特别表现出特征，例如连续旋转激发的间隙和Majorana结合状态，其能量与施加的磁场相规。对于相对较宽的磁场而存在的这种缩放与传统镁的线性相一致，可以用来证明Kitaev量子自旋液体的存在。
In this paper we develop the theory for 2D-to-2D tunneling spectroscopy aided by magnetic or quantum-order excitations, and apply it to the description of van-der-Waals heterostructures of graphene/ultrathin $α-{\rm RuCl}_3$. We study the behavior of both the differential conductance and the inelastic electron tunneling spectrum (IETS) of these heterostructures. The IETS in particular exhibits features, such as the gap of continuum spinon excitations and Majorana bound states, whose energies scale {\it cubicly} with the applied magnetic field. Such scaling, which exists for a relatively wide range of fields, is at odds with the linear one exhibited by conventional magnons and can be used to prove the existence of Kitaev quantum spin liquids.
