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Colloidal Suspensions Can Have Nonzero Angles of Repose below the Minimal Value for Athermal Frictionless Particles
Jesús Fernández · Loïc Vanel · Antoine Bérut
Abstract
Author(s): Jesús Fernández, Loïc Vanel, and Antoine Bérut<br/><p>In dense colloidal suspensions composed of particles sensitive to Brownian motion, a gravitational Peclet number governs an intermediate angle of repose where gravity and thermal agitation strike a balance.</p><img src="//cdn.journals.aps.org/journals/PRL/key_images/10.1103/hgfn-k4ql.png" width="200" height=\"100\"><br/>[Phys. Rev. Lett. 137, 108201] Published Mon Aug 31, 2026
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