Presentation Type
Poster
Full Name of Faculty Mentor
Nicholas Harmon, Physics and Engineering Science
Major
Applied Physics
Presentation Abstract
Next generation technologies have been proposed where electron spin is used in addition to electron charge in order to improve functionality and efficiency of electronic devices. In this work, we study how nuclear fields, magnetic fields from atomic nuclei, influence spin transport characteristics in semiconductors. Nuclear fields are added to the spin drift- diffusion equation and the resulting spin distributions are calculated. Due to the complicated nature of the nuclear field, the steady state spin drift-diffusion equations are non-linear and must be solved numerically. In this work, we examine solutions for the spin distribution and spin current in the presence of a nuclear field. Lastly, the effect of magnetic field gradients on steady state spin are explored to show how these gradients affect spin current.
Location
Poster Session 2
Start Date
13-4-2022 4:30 PM
End Date
13-4-2022 6:30 PM
Disciplines
Physics
Recommended Citation
Coleman, Dana; Stevens, Bryan; and Schulz, Truman, "Solving Electron Spin Drift-Diffusion Equations in Presence of Hyperfine Interactions" (2022). Undergraduate Research Competition. 19.
https://digitalcommons.coastal.edu/ugrc/2022/fullconference/19
Included in
Solving Electron Spin Drift-Diffusion Equations in Presence of Hyperfine Interactions
Poster Session 2
Next generation technologies have been proposed where electron spin is used in addition to electron charge in order to improve functionality and efficiency of electronic devices. In this work, we study how nuclear fields, magnetic fields from atomic nuclei, influence spin transport characteristics in semiconductors. Nuclear fields are added to the spin drift- diffusion equation and the resulting spin distributions are calculated. Due to the complicated nature of the nuclear field, the steady state spin drift-diffusion equations are non-linear and must be solved numerically. In this work, we examine solutions for the spin distribution and spin current in the presence of a nuclear field. Lastly, the effect of magnetic field gradients on steady state spin are explored to show how these gradients affect spin current.