Role of point-defect charging dynamics in quantum-well magneto-transport

Danhong Huang; Andrii Iurov; Godfrey Gumbs; Fei Gao

doi:10.1117/12.2540028

2 March 2020 Role of point-defect charging dynamics in quantum-well magneto-transport

Danhong Huang, Andrii Iurov, Godfrey Gumbs, Fei Gao

Proceedings Volume 11274, Physics and Simulation of Optoelectronic Devices XXVIII; 112740A (2020) https://doi.org/10.1117/12.2540028
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

The defect corrections to the polarization and dielectric functions of conduction electrons in a quantum well are first calculated. Following this, we derive the first two moment equations from the semi-classical Boltzmann transport theory and apply them to explore defect effects on magneto-transport of electrons. In addition, we obtain analytically momentum-relaxation time and mobility tensor of electrons by using the defect-corrected polarization function. Based on quantum-statistical theory, we further investigate the defect capture and charging dynamics by employing a hydrogen-like quantum-mechanics model for point defects and going beyond a short-range δ-function for their probability functions. Finally, both the capture and relaxation rates, as well as the density for captured electrons, are studied as functions of temperature, subband-electron density and different types of defects, which can be utilized for quantifying burst noise in transistors and blinking noise in photo-detectors.

Conference Presentation

Citation Download Citation

Danhong Huang, Andrii Iurov, Godfrey Gumbs, and Fei Gao "Role of point-defect charging dynamics in quantum-well magneto-transport", Proc. SPIE 11274, Physics and Simulation of Optoelectronic Devices XXVIII, 112740A (2 March 2020); https://doi.org/10.1117/12.2540028

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available