Optimization of Epitaxial Graphene Growth for Quantum Metrology

authored by

Davood Momeni Pakdehi

supervised by

Hans Werner Schumacher

Abstract

The electrical quantum standards have played a decisive role in modern metrology, particularly since the introduction of the revised International System of Units (SI) in May 2019. By adapting the basic units to exactly defined natural constants, the quantized Hall resistance (QHR) standards are also given precisely. The Von Klitzing constant RK = h/e2 (h Planck's constant and e elementary charge) can be measured precisely using the quantum Hall effect (QHE) and is thus the primary representation of the ohm. Currently, the QHR standard based on GaAs/AlGaAs heterostructure has succeeded in yielding robust resistance measurements with high accuracy

Organisation(s)

Institute of Solid State Physics
QUEST-Leibniz Research School

Type

Doctoral thesis

No. of pages

213

Publication date

2020

Publication status

Published

Electronic version(s)

https://doi.org/10.15488/10201 (Access: Open)

 

Details in the research portal "Research@Leibniz University"