# APPLIED MAGNETISM AND SUPERCONDUCTIVITY - 2017/8

Module code: PHY3056

Module provider

Physics

Module Leader

CLOWES SK Dr (Physics)

Number of Credits

15

ECT Credits

7.5

Framework

FHEQ Level 6

JACs code

F300

Module cap (Maximum number of students)

N/A

Module Availability

Semester 2

Overall student workload

Lecture Hours: 22

Tutorial Hours: 11

Assessment pattern

Assessment type | Unit of assessment | Weighting |
---|---|---|

Coursework | COURSEWORK ASSIGNMENT 1 (SUPERCONDUCTIVITY) | 15% |

Coursework | COURSEWORK ASSIGNMENT II (MAGNETISM) | 15% |

Examination | EXAMINATION | 70% |

Alternative Assessment

None.

Prerequisites / Co-requisites

The module will assume prior knowledge equivalent to the following modules. If you have not taken these modules you should consult the module descriptors - Quantum Physics (PHY2069). Solid State Physics (PHY2068) & From atoms to Lasers (PHY2062).

Module overview

This module is designed to provide a broad overview of quantum magnetism and superconductivity and their applications in modern science and technology. Both superconductivity and magnetism are manifestations of electronic charge and spin, and constitute prime examples of phase transitions in metals. A range of phenomena that is resulting from these phase transitions is surveyed. A significant part of the module is devoted to technological applications in magnetometry and spintronics.

Module aims

This module aims to: To provide an introduction to the important role that electronic interaction plays in solid-state physics leading to phase transitions in electronic systems. To provide an introduction to microscopic theory and phenomenology of both quantum magnetic phenomena and superconductivity. Introduction to applications of solid state physics to micro-electronics and metrology.

Learning outcomes

Attributes Developed | |
---|---|

Describe the electromagnetic behaviour of Type I superconductors in electromagnetic fields, and the London equations . | KC |

Exhibit an understanding of how the microscopic theory (BCS) is derived and how its predictions relate to experimental observations | KCT |

Explain how applications are related to the theory of superconductivity (e.g. Josephson effect and SQUIDs) and | KPT |

Apply the principles of exchange interactions to determine magnetic ordering in materials. | KC |

Evaluate spin diffusion and injection efficiencies in multi-layer systems | KC |

Discuss the potential of future spintronic technologies and the associated technological challenges. | KCP |

Attributes Developed

**C** - Cognitive/analytical

**K** - Subject knowledge

**T** - Transferable skills

**P** - Professional/Practical skills

Module content

Superconductivity

Historical overview of superconductivity

Electrodynamics of superconductors

Introduction to BCS Theory

Quantum circuits: the dc SQUID and superconducting quantum bits

Magnetism

Diamagnetism, Quantum mechanical (Brillouin) theory of paramagnetism

Magnetic order: Exchange interactions, Ferromagnetism & Currie temperature, anti-ferromagnetism, magnetism in metal (Pauli paramagnetism and itinerant ferromagnetism), domains.

Spintronics: Giant magnetoresistance (GMR), tunnel magnetoresistance (TMR), semiconductor spintronics (spin transistor, spin injection, spin dynamics)

Magnetic Random Access memory (MRAM), spin torque, magnetic racetrack memory, magneto-optic Kerr effect, and magnetic domain wall logic.

Special Topics

Examples: High-Tc superconductivity, topological insulators/superconductors. [3h]

Methods of Teaching / Learning

The learning and teaching strategy is designed to provide:

a comprehensive theoretical treatment for the subject knowledge

practice in problem solving for the cognitive skills

The learning and teaching methods include:

“chalk and talk” lectures backed up with guided study to stimulate uptake of subject knowledge (2 hour per week x 11)

tutorial demonstration of solutions to key problems after students have attempted them for formative feedback (1 hour per week x 11)

Assessment Strategy

analytical ability by solution of unseen problems in both coursework and exam

subject knowledge by recall of both “textbook” theory and important research articles in the exam

ability to generalize text-book theory by open-ended research component in the coursework

Thus, the summative assessment for this module consists of:

a 2 hour exam with 2 sections: Section A - Superconductivity (10 mark questions, answer 2 out of 3 ) & Section B: Magnetism (10 mark questions, answer 2 out of 3), weighted at 70%

2 assignments on specials topics, which will take a total of 40 hours of effort, each weighted at 15% - total of 30%

Formative assessment and feedback

Students will receive verbal feedback on progress with problems in tutorials and model solutions to the tutorial questions.

Reading list

Reading list for APPLIED MAGNETISM AND SUPERCONDUCTIVITY : http://aspire.surrey.ac.uk/modules/phy3056

Please note that the information detailed within this record is accurate at the time of publishing and may be subject to change. This record contains information for the most up to date version of the programme / module for the 2017/8 academic year.