J. A. Sauls

**Lectures:**
Tuesday & Thursday, 11:00 am -12:20 pm

**Where:**
Room: LG62 Tech Institute

This course is an introduction to the phenomena of superconductivity, superconducting
materials and their many applications in basic science and technology.
This is a lecture-based course combined with experimental demonstrations on the basic
theory and phenomenology of superconductivity and its applications. Fundamentals include
the electrical and magnetic properties of superconductors, London’s theory of the
electromagnetic response of superconductors, Landau and Ginzburg’s theory for the
thermodynamics and magnetic
properties of type I and type II superconductors, the origin of quantized magnetic flux,
the Josephson effect, and the operation of Superconducting Quantum Interference
Devices (SQUIDs) for high-precision magnetometry. Applications are wide ranging, from
superconducting quantum electronics to superconducting radio-frequency cavities for particle
accelerators.
Undergraduate-level knowledge of thermodynamics, and an undergraduate-level course
on quantum mechanics will be assumed.
There are no graduate-level prerequisites. In particular, this course does not require
graduate-level quantum mechanics, solid-state physics or graduate-level statistical mechanics.

**Details:**

- Format: Lectures and Experimental Demonstrations
- Course Materials: Textbook Rose-Innes plus Lecture Notes
- Experimental Lectures by: Drs. Anna Grassellino & Alex Romanenko from Fermi Lab
- Field Trip to the Superconducting RF Cavity Laboratory at Fermi National Lab
- Evaluation: Term paper and Oral report
- Pre-Requisites: Undergraduate degree in physical sciences

**Topics**

- Perfect conductivity, persistent current-carrying states of superconductors
- The Meissner effect – perfect diamagnetism
- The magnetic penetration length, the thermodynamic critical magnetic field of a superconductor
- Thermodynamics of superconductors – the phase transition and the existence of an energy gap
- Magnetic classes of superconductors – type I versus type II superconductors – phase diagrams
- London's theory of the electromagnetic properties of superconductors
- Ginzburg-Landau and Abrikosov's theories of the thermodynamic and magnetic properties
- Experimental probes of the magnetic properties of superconductors – NMR, neutrons, SQUIDS
- Superconducting Materials – elemental to high-temperature superconductors
- Macroscopic quantum properties of superconductors I – the quantum of magnetic flux
- Macroscopic quantum properties of superconductors II – the Josephson effect
- Superconducting Quantum Interference Devices – SQUIDS – precision magnetometry
- Nuclear Magnetic Resonance measurements on superconductors
- Neutron scattering and Scanning Tunneling Microscopy of Superconductors
- Applications: Superconducting circuits for quantum computers
- Applications: Power transmission to high-speed levitated trains
- Applications: Superconducting RF particle accelerators
- Applications in Condensed Matter and Quantum Field Theory

**Course Material:** Lecture Notes provided by the instructors

File translated from T

On September 6, 2018.