Simulating the formation of electron tunnel junctions in manganite thin films
Project conducted under Professor Amlan Biswas; Department of Physics, University of Florida
Since January 2024, I have been performing computational work on the formation of electron tunnel junctions (ETJs) in manganite thin films. A C++ program written by Nicole Burg simulates the migration of ferromagnetic metallic (FMM) regions in the presence of a non-uniform electric field [1]. This migration is due to dielectrophoresis, a force which acts on particles in a non-uniform electric field [1]. The coalescence of FMM regions on two opposing electrodes may produce an electron tunnel junction. My goal is to reproduce experimental results using this model of ETJs. Additionally, I will conduct experimental measurements on LPCMO ((La(1-y) Pr(y))(1-x) Ca(x) MnO(3)) to obtain current vs voltage (I-V) curves at various temperatures. These will also be compared with computational results.
Simulation of migrating FMM regions. As they migrate towards each electrode, they coalesce into a larger region. This may result in an electron tunnel junction.
[1] N. Burg, “Simulation and experimental evidence of dielectrophoresis in manganite thin films”,
2022.