论文标题
二维库仑玻璃作为超导膜中涡流固定的模型
Two-dimensional Coulomb glass as a model for vortex pinning in superconducting films
论文作者
论文摘要
在低温下，在磁场中固定在高度无序的薄超导膜中的涡流模型。在无序的超导体中实现的涡旋系统的强大集体固定，这些超导体接近量子相过渡到绝缘阶段 - 例如$ \ m athrm {in o} _x $，$ \ mathrm {nb n} $，$ \ \ \ \ \ m mathrm {ti n} $，$ \ mathrm and ge ann anan anan anan anan anan anan nan anan nan anan nan anan nan anan nan anan rum {mo {ma}理论上是第一次。利用为自旋玻璃理论开发的复制技巧，我们证明了这种涡流系统处于玻璃类型的非共性状态，每平方$ l_k $，具有较大的动力学电感。计算局部固定能的分布函数，并表明它具有较大的间隙，即找到弱钉涡流的概率极低。
A glass model of vortex pinning in highly disordered thin superconducting films in magnetic fields $B \ll H_{c2}$ at low temperatures is proposed. Strong collective pinning of a vortex system realized in disordered superconductors that are close to the quantum phase transition to the insulating phase -- such as $\mathrm{In O}_x$, $\mathrm{Nb N}$, $\mathrm{Ti N}$, $\mathrm{Mo Ge}$, nano-granular aluminium, and others -- is considered theoretically for the first time. Utilizing the replica trick developed for the spin glass theory, we demonstrate that such vortex system is in non-ergodic state of glass type with large kinetic inductance per square $L_K$. Distribution function of local pinning energies is calculated, and it is shown that it possesses a wide gap, i.e. the probability to find a weakly pinned vortex is extremely low.
