50 citations · 162 across the 9 of their papers we have counts for
9 papers
Distinguishing noisy crystalline structures using bond orientational order parameters
Jan Haeberle, Matthias Sperl, Philip Born
The bond orientational order parameters originally introduced by Steinhardt \emph{et. al.} [Phys. Rev. B \textbf{28}, 784 (1983)] are a common tool for local structure characteriza…
Double origin of stochastic granular tribocharging
Jan Haeberle, André Schella, Matthias Sperl +2
The mechanisms underlying triboelectric charging have a stochastic nature. We investigate how this randomness affects the distributions of charges generated on granular particles d…
Analysis of Granular Packing Structure by Scattering of THz Radiation
Philip Born, Karsten Holldack
Scattering methods are widespread used to characterize the structure and constituents of matter on small length scales. This motivates this introductory text on identifying prospec…
Focus on Imaging Methods in Granular Physics
Axelle Amon, Philip Born, Karen E. Daniels +6
Granular materials are complex multi-particle ensembles in which macroscopic properties are largely determined by inter-particle interactions between their numerous constituents. I…
Enhanced granular medium-based tube press hardening
Hui Chen, Sigrid Hess, Jan Haeberle +5
Active and passive control strategies of internal pressure for hot forming of tubes and profiles with granular media are described. Force transmission and plastic deformation of gr…
Probing density waves in fluidized granular media with diffusing-wave spectroscopy
Philip Born, Steffen Reinhold, Matthias Sperl
Density waves are characteristic for fluidized beds and affect measurements on liquid-like dynamics in fluidized granular media. Here, the intensity autocorrelation function as obt…
Drop tower setup for dynamic light scattering in dense gas-fluidized granular media
Philip Born, Johannes Schmitz, Michael Bussmann +1
Investigation of dynamics in dense granular media is challenging. Here we present a setup that facilitates gas fluidization of dense granular media in microgravity. The dynamics is…
Particle characterization using THz spectroscopy
Philip Born, Karsten Holldack, Matthias Sperl
THz extinction spectroscopy extends UV-Vis and NIR-spectroscopy to characterize particles from fine powders and dust to sand, grains and granulated materials. We extract particle s…
Granular Structure Determined by Terahertz Scattering
Philip Born, Nick Rothbart, Matthias Sperl +1
Light-scattering in the terahertz region is demonstrated for granular matter. A quantum-cascade laser is used in a benchtop setup to determine the angle-dependent scattering of sph…