论文标题
在有机乳胶系统中,可能导致电流引起的现象和域控制,并具有弱充电排序
Possible Current-Induced Phenomena and Domain Control in an Organic Dirac Fermion System with Weak Charge Ordering
论文作者
论文摘要
我们表明,当电子和孔密度不平衡时,可观察到的非线性异常霍尔效应以及电流诱导的轨道磁化在零磁场处出现在弱充气顺序(CO)状态下的有机二维dirac fermion fermion系统的状态,A-(bedtt-TTF)2I3。这些电流诱导的现象是由有限的浆果曲率偶极子引起的,这是由反转对称断裂和狄拉克锥倾斜引起的。但是,在实际系统中,这些效果在不同类型的反转不对称CO域之间取消。为了避免取消,我们提出了一种新的实验方法,以使用电流诱导的磁化强度的方式实现单一类型的域的选择性形成。
We show that when the electron and hole densities are unbalanced, observable nonlinear anomalous Hall effect and current-induced orbital magnetization appear at zero magnetic field in the weak charge ordering (CO) state of an organic two-dimensional Dirac fermion system, a-(BEDT-TTF)2I3. These current-induced phenomena are caused by a finite Berry curvature dipole resulting from inversion symmetry breaking and Dirac cone tilting. In the actual system, however, these effects are canceled out between different types of inversion asymmetric CO domains. To avoid the cancellation, we propose a new experimental method to realize the selective formation of a single type of domain using the current-induced magnetization.