  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.
