3 papers
cond-mat.str-el2026
Disorder into Correlation: A Microscopic Mechanism for Sub-McIntyre Avalanche Noise
Shafat Shahnewaz, Hannaneh Karimi, Joe C. Campbell +1
Avalanche multiplication is intrinsically stochastic, yet experiments reveal excess noise below the minimum predicted by McIntyre's local-field theory. The microscopic origin of th…
cond-mat.mtrl-sci2026
A transferable full-band Monte Carlo framework for complex alloy avalanche photodiodes
Shafat Shahnewaz, Hannaneh Karimi, Joe C. Campbell +1
We present a physics-based multiscale full-band Monte Carlo framework for modeling avalanche multiplication and excess noise in complex alloy avalanche photodiodes (APDs), demonstr…
cond-mat.mes-hall2025
A Matrix Quantum Kinetic Treatment of Impact Ionization in Avalanche Photodiodes
Sheikh Z. Ahmed, Shafat Shahnewaz, Samiran Ganguly +2
Matrix based quantum kinetic simulations have been widely used for the predictive modeling of electronic devices. Inelastic scattering from phonons and electrons are typically trea…