量子化磁场下石墨圆柱体的磁输运
Magnetotransport in a graphite cylinder under quantizing fields
AI总结：
研究强磁场下弯曲三维石墨的输运性质，通过毫米级石墨圆柱体的纵向与霍尔电压测量，发现角度依赖的舒勃尼科夫-德哈斯振荡叠加角度无关特征，提出网络模型解释圆柱几何效应，揭示曲率与量子化磁场相互作用可用于调控空间电流密度。
摘要：
我们分析了强磁场中弯曲的三维石墨样品的输运性质。以毫米尺度的石墨圆柱体作为典型的弯曲物体，我们在施加量子化磁场的同时进行了纵向和霍尔电压测量。这些测量结果作为场强和角度的函数进行了研究。最重要的是，我们发现角度依赖的舒勃尼科夫-德哈斯振荡与角度无关的特征叠加在一起。为了重现实验观测结果，我们引入了一个网络模型，该模型通过将圆柱体概念化为在有效非均匀磁场中的平面石墨条带来解释圆柱几何效应。我们的工作强调了几何曲率与量子化磁场之间的相互作用如何被利用来在固态系统中工程化可调的空间电流密度，并为更普遍地理解弯曲和折弯的三维样品的输运性质铺平了道路。
英文摘要：
We analyze the transport properties of curved, three-dimensional graphite samples in strong magnetic fields. Focusing on a millimeter-scale graphite cylinder as a prototypical curved object, we perform longitudinal and Hall voltage measurements while applying quantizing magnetic fields. These measurements are investigated as a function of field strength and angles. Most importantly, we find that angle-dependent Shubnikov-de Hass oscillations are superimposed with angle-independent features. Reproducing the experimental observations, we introduce a network model that accounts for the cylindrical geometry effect by conceptualizing the cylinder as composed of strips of planar graphite in an effectively inhomogeneous magnetic field. Our work highlights how the interplay between geometric curvature and quantizing magnetic fields can be leveraged to engineer tunable spatial current densities within solid-state systems, and paves the way for understanding transport properties of curved and bent three-dimensional samples more generally.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
