activity
20202022
most citedSelf-heating of cryogenic high-electron-mobility transistor amplifiers and the limits of microwave noise performance

14 citations · 60 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.mtrl-sci2022★ 10 cited

Two-phonon scattering in non-polar semiconductors: a first-principles study of warm electron transport in Si

Benjamin Hatanpää, Alexander Y. Choi, Peishi S. Cheng +1

The ab-initio theory of charge transport in semiconductors typically employs the lowest-order perturbation theory in which electrons interact with one phonon (1ph). This theory is…

physics.ins-det2022★ 14 cited

Self-heating of cryogenic high-electron-mobility transistor amplifiers and the limits of microwave noise performance

Anthony J. Ardizzi, Alexander Y. Choi, Bekari Gabritchidze +4

The fundamental limits of the microwave noise performance of high electron mobility transistors (HEMTs) are of scientific and practical interest for applications in radio astronomy…

cond-mat.mtrl-sci2022★ 14 cited

High-field transport and hot electron noise in GaAs from first principles: role of two-phonon scattering

Peishi S. Cheng, Jiace Sun, Shi-Ning Sun +2

High-field charge transport in semiconductors is of fundamental interest and practical importance. While the \textit{ab initio} treatment of low-field transport is well-developed,…

cond-mat.mes-hall2021★ 10 cited

Theory of drain noise in high electron mobility transistors based on real-space transfer

Iretomiwa Esho, Alexander Y. Choi, Austin J. Minnich

High electron mobility transistors are widely used as microwave amplifiers owing to their low microwave noise figure. Electronic noise in these devices is typically modeled by nois…

cond-mat.mes-hall2021

Characterization of self-heating in cryogenic high electron mobility transistors using Schottky thermometry

Alexander Y. Choi, Iretomiwa Esho, Bekari Gabritchidze +2

Cryogenic low noise amplifiers based on high electron mobility transistors (HEMTs) are widely used in applications such as radio astronomy, deep space communications, and quantum c…

cond-mat.mtrl-sci2020★ 12 cited

Electronic noise of warm electrons in semiconductors from first-principles

Alexander Y. Choi, Peishi Cheng, Benjamin Hatanpaa +1

The ab-initio theory of low-field electronic transport properties such as carrier mobility in semiconductors is well-established. However, an equivalent treatment of electronic flu…