Notice: For the latest information and guidance on Purdue's response to COVID-19 please visit:

Fundamentals of Current Flow


Credit Hours:


Learning Objective:

  • Explain the new perspective on conductivity and its relation to the standard Drude formula
  • Evaluate quantities like the density of states, number of modes, electron density and conductivity for a given energy-momentum relation
  • Explain concepts like the minimum interface resistance and the two Landauer formulas


This course is intended to be broadly accessible to students in any branch of science or engineering who would like to learn about the modern conceptual framework for describing the flow of electrons in solid-state electronic devices.

Weekly topics: 1 & 2, The New Perspective; 3 & 4, Energy Band Model; 5, What and Where Is the Voltage.
Spring 2021 Syllabus

Topics Covered:


This course is designed for students who have an undergraduate degree in engineering or the physical sciences, having a familiarity with differential equations and linear algebra.

Applied / Theory:


Three exams


S.Datta, Lessons from Nanoelectronics, Part A: Basic Concepts, Second Edition, World Scientific (2017); this book is provided to students as a free download in the course.

Computer Requirements:

ProEd Minimum Requirements: