论文标题
在超导yba $ _ {2} $ cu $ _ {3} $ o $ $ _ {7-δ} $薄膜带有定期固定型晶格的薄膜中，订购了超导yba $ _ {2} $ _ {2} $ _ {2} $ _ {2}
Ordered Bose Glass of Vortices in Superconducting YBa$_{2}$Cu$_{3}$O$_{7-δ}$ Thin Films with a Periodic Pin Lattice Created by Focused Helium Ion Irradiation
论文作者
论文摘要
YBA $ _ {2} $ CU $ _ {3} $ o $ $ _ {7-δ} $（YBCO）薄膜的富含缺陷的形态会导致类似玻璃的Abrikosov涡流，这会导致抗药性在消失的当前密度中消失。该涡旋玻璃由纠缠的涡旋线组成，并通过电压等温线的特征缩放来识别。随机分布的柱状缺陷将涡流线分层并导致玻色玻璃。在这里，我们报告了在YBCO薄膜中观察到的有序的玻色玻璃，该薄膜具有带有30 nm间距的六角形柱状阵列。周期性的固定景观是由30 keV He $^+$ $离子在氦离子显微镜中设计的。
The defect-rich morphology of YBa$_{2}$Cu$_{3}$O$_{7-δ}$ (YBCO) thin films leads to a glass-like arrangement of Abrikosov vortices which causes the resistance to disappear in vanishing current densities. This vortex glass consists of entangled vortex lines and is identified by a characteristic scaling of the voltage-current isotherms. Randomly distributed columnar defects stratify the vortex lines and lead to a Bose glass. Here, we report on the observation of an ordered Bose glass in a YBCO thin film with a hexagonal array of columnar defects with 30 nm spacings. The periodic pinning landscape was engineered by a focused beam of 30 keV He$^+$ ions in a helium-ion microscope.
