论文标题
各向异性二维材料中疾病驱动的转变向管状相
Disorder-driven transition to tubular phase in anisotropic two-dimensional materials
论文作者
论文摘要
我们在无序的二维柔性材料中开发了一种异常弹性的理论，该材料具有正交晶体对称性。与干净的情况相似，我们预测存在具有各向异性弯曲刚度的无限多个扁平相和Young的模量，显示了由单个通用指数控制的动量的幂律缩放，与干净的各向同性情况相同。随着温度或无序的升高，这些平面经历了折断的转变。值得注意的是，与各向同性材料同时在所有空间方向上发生折断的各向同性材料相反，各向异性材料碎成管状相。与清洁案例区别，在非物理高温下发生折断过渡的情况，即使在室温条件下，也可能存在疾病诱导的管状皱巴巴相。我们的结果应用于各向异性原子单层，由Adatoms掺杂或因重离子轰炸而无序。
We develop a theory of anomalous elasticity in disordered two-dimensional flexible materials with orthorhombic crystal symmetry. Similar to the clean case, we predict existence of infinitely many flat phases with anisotropic bending rigidity and Young's modulus showing power-law scaling with momentum controlled by a single universal exponent the very same as in the clean isotropic case. With increase of temperature or disorder these flat phases undergo crumpling transition. Remarkably, in contrast to the isotropic materials where crumpling occurs in all spatial directions simultaneously, the anisotropic materials crumple into tubular phase. In distinction to clean case in which crumpling transition happens at unphysically high temperatures, a disorder-induced tubular crumpled phase can exist even at room-temperature conditions. Our results are applied to anisotropic atomic single layers doped by adatoms or disordered by heavy ions bombarding.
