3 papers
cond-mat.mtrl-sci2025
Spontaneous spiral patterns etched on Germanium
Yilin Wong, Giovanni Zocchi
Thin metal film on Germanium, in the presence of water, results in a remarkable pattern forming system. Here we present an analysis of spirals spontaneously etched on the Ge surfac…
cond-mat.mtrl-sci2024
Metal Assisted Chemical Etching patterns at a Ge/Cr/Au interface modulated by the Euler instability
Yilin Wong, Giovanni Zocchi
We present a solid state system which spontaneously generates remarkable engraving patterns on the surface of Ge. The layered construction, with a metal film on the Ge surface, res…
cond-mat.mes-hall2023
The Debye layer as a transmission line in the 4Hz-100kHz frequency range
Thanh-Tri Châu, Giovanni Zocchi
We report measurements on the dynamics of the Debye layer at a gold electrode in several electrolytes. In the experiments, the Debye layer transmits a damped voltage wave along the…