Fernandes here we will discuss a new ground state of the interacting electron gas. Superconductivity and low temperature physics the following lectures are offered on a regular basis. Mechanism of superconductivity isotope effect, tc depends on the mass of atoms t c mass of atoms constitutingthe crystallattice. Lecture notes on superconductivity a work in progress. Robert schrieffer, which is known as the bcs theory. Introduction home university of waterloo university of. On cooling hg to the temperature of liquid helium, he found that the resistance vanished abruptly at.
Conventional versus unconventional superconductivity the most fundamental experimental aspect of superconductivity is the screening of a. Department of physics of the university of florence, via g. Superconductivity applications of quantum mechanics. Magnetic susceptibility and hall effect followed by problem solving. The adobe flash plugin is needed to view this content. Superconductivity is destroyed by either raising the temperature or by applying a magnetic eld. These lecture notes are an extension of my previous notes 1 presented in this lecture series and are concerned with the recently emerging research. Abstract this report contains lecture notes of the basic lectures presented at the. Superconductivity is characterized by a vanishing static electrical resistivity and an expulsion of the magnetic. All derivations may be referenced in \theory of superconductivity by bardeen, cooper, and schrie er or tinkhams introduction to. Ferro magnetic and anti ferromagnetic materials are not. These lecture notes cover a few aspects and developments in the.
We will discuss these basic experiments in the following chapter, but mainly this course is dealing with the theory of superconductivity. Ppt high temperature superconductivity powerpoint presentation free to view id. Superconductors are the material having almost zero resistivity and behave as diamagnetic below the superconducting transiting temperature superconductivity is the flow of electric current without resistance in certain metals, alloys, and ceramics at temperatures near absolute zero, and in some cases at temperatures hundreds of degrees. Here we will discuss a new ground state of the interacting electron gas. Lectures at the university of barcelona, spain, septemberoctober 2003 roberto casalbuoni department of physics of the university of florence, via g. We will see that magnetic levitation for high temperature superconductors is different. What are some good lecture notes on superconductivity. Note also that in the superconductor ndfeaso1x, an example of the recent discovery of. Bill coish introduction superconductivity refers to a complex of phenomena which are usually found to occur together. Larbalestier applied superconductivity center national high magnetic field laboratory, florida state university, tallahassee, fl 32310, usa. Super conductor are the material having almost zero resistivity and behave as diamagnetic below the super conducting transition temperature.
Today, superconductivity is being applied to many diverse areas such as. The course is based on steven simons oxford solid state basics textbook. Lets imagine a device consisting of two superconductors separated by a thin oxide tunnel barrier, and no electromagnetic fields. Applied superconductivity lecture notes pdf 35p this note covers the following topics. Electrical conductivity and heat capacity followed by problem solving. In this macroscopic quantum state, the electrons form.
Freely browse and use ocw materials at your own pace. Mar 08, 2012 superconductivity and its applications 1. As well as watching each film, you will have access to a growing collection of other information, including links to further reading, and a set of questions and answers to test your knowledge. The most convenient way to watch the lectures on superconductivity is by video streaming from this website. For chemically pure and structurally perfect specimen, the superconductivity is very sharp. Superconductivity is the set of physical properties observed in certain materials, wherein electrical resistance vanishes and from which magnetic flux fields are expelled. The video lectures can be watched free of charge online.
Two fluid model for superconductivity and london equations. What is a superconductor, discovery of superconductivity, meissner effect, type i superconductors, type ii superconductors, theory of superconductivity, tunneling and the josephson effect, hightemperature supercondutors and applications of superconductors. Condensed matter and qcd lectures at the university of barcelona, spain, septemberoctober 2003 roberto casalbuoni. Superconductivity and low temperature physics ii ss 2015. Lecture 23 superconductivity ii theory 4 physics 460 f 2000 lect 23 19 persistent currents how can the current stop flowing. All derivations may be referenced in \theory of superconductivity by bardeen, cooper, and schrie er or tinkhams introduction to superconductivity.
Superconductivity hs 2015 institute for theoretical physics. Good conductors weak scattering from the lattice are poor superconductors low tc. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. It occurs in a wide variety of metals and alloys, below a transition temperature tc which currently ranges up to.
Super conductivity general propertiesobservations regarding applications 2. We now know enough about superconductivity to do some modeling. Slides on josephson junctions and notes on josephson junctions. Pdf lecture note on superconductivity, solid state physics. For unconventional superconductivity specifically, which is a topic of active research, i would suggest notes from summer schools intense, researchfocused lecture series aimed at graduate students and postdocs. Jan 12, 2016 upperlevel undergraduate course taught at the university of pittsburgh in the fall 2015 semester by sergey frolov. Naturally this overview is selective and the viewpoint is biased by the preferences of the lecturer. These lecture notes introduce into the phenomenological and qualitative theory of superconductivity. The lecture notes contained here are designed to cover exactly this crucial material. Any material exhibiting these properties is a superconductor.
Uspas course on superconducting accelerator magnets, june 2327, 2003. Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered even. Materials having high normal resistivities exhibit superconductivity. Superconductivity a level physics teaching resources. Superconductivity and bcs theory introduction electronphonon interaction, cooper pairs bcs wave function, energy gap and quasiparticle states predictions of the bcs theory limits of the bcs gap equation. Lecture notes on superconductivity a work in progress daniel arovas congjun wu department of physics university of california, san diego june 23, 2019. There is an energy barrier for the flux to go through the superconductor to escape time for. Applied superconductivity lecture notes pdf 35p download book. A microscopic theory of superconductivity was developed in 1957 by john bardeen, leon cooper and j.
Kamerlingh onnes in holland while studying the electrical resistance of a sample of frozen mercury as a function of temperature. Chapter 3 coherent current states in twoband superconductors 37. He found that below the liquifying temperature of helium, ataround4. Foundations of bcs theory in this section, we lay out the theoretical grounds for bcs theory. A series of films prepared by bartek glowacki to introduce undergraduate and postgraduate students to superconductivity and its applications, including interviews with leading experts from academia and industry. We want to understand superconductivity using methods.
This suggested that there would be a steady decrease in electrical resistance, allowing for better conduction of electricity. Let us build to this macroscopic quantum state by rst considering a single pair and then turn to the manypair state. Some basic superconductivity for accelerator builders. Introduction to unconventional superconductivity in noncentrosymmetric metals manfred sigrist theoretische physik, ethhonggerberg, 8093 zurich, switzerland abstract. Superconductivity and low temperature physics i foundations of superconductivity 2. Bcs theory of superconductivity the nobel prize in electronphonon interactions physics 1972 and superconductivity for their jointly developed nobel lecture, december 11, 1972 theory of superconductivity, by john bardeen usually called the bcstheory departments of physics and of electrical engineering images removed for reasons.
Apr, 2014 apr 21, 2020 superconductivity ppt, physics, uiet, semester, engineering computer science engineering cse notes edurev is made by best teachers of computer science engineering cse. Upperlevel undergraduate course taught at the university of pittsburgh in the fall 2015 semester by sergey frolov. Lecture notes are in pdf portable document format download the free adobe acrobat reader. Superconductivity lecture ii brookhaven national laboratory. Find materials for this course in the pages linked along the left. Superconductivity superconductivity was discovered in 1911 by h. Kleiner original in german, available online through the eth library slides and notes. Introduction to unconventional superconductivity in non. Lectures on superconductivity richard hlubina comenius university, bratislava, slovakia contents 1 basic notions 2 2 ginzburglandau theory 7 3 magnetic properties of type i superconductors 11 4 magnetic properties of type ii superconductors 14 5 pairing instability 19 6 bcs theory 23 7 spectroscopy of the superconducting state 28 8 josephson. Lecture notes applied superconductivity electrical.
Ht phase diagram, where the procedure of the zfc and fc susceptibility measurement for. Some basic superconductivity for accelerator builders lecture 1 reversible properties d. Eremin, maxplanck institut fur physik komplexer systeme, dresden, germany. This document is highly rated by computer science engineering cse students and has been viewed 1591 times. However, this is the minimum set of notes that covers all. Phenomenological theories of superconductivity, applications of ginzburglandau theory, response, resonance, and the electron gas, screening and dielectric response, bcs theory of superconductivity, applications of bcs theory. Discovery of superconductivity superconductivity was first discovered in 1911 by the dutch physicist,heike kammerlingh onnes. Superconductivity was discovered by kamerlinghonnes in 1911, when he was studying the transport properties of hg mercury at low temperatures. The central feature of the bcs theory is that two electrons in the superconductor are able to form a bound pair called a cooper pair if they somehow experience an attractive interaction between. Superconductivity as a macroscopic quantum phenomenon in the modern view, superconductivity is understood as a phase ordering of pairs of electrons cooper paris into a macroscopic quantum state. Onnes, felt that a cold wires resistance would dissipate. I realize that these notes are a lot of material, and for this i apologize. Nov 20, 2014 superconductors are the material having almost zero resistivity and behave as diamagnetic below the superconducting transiting temperature superconductivity is the flow of electric current without resistance in certain metals, alloys, and ceramics at temperatures near absolute zero, and in some cases at temperatures hundreds of degrees. A description of superconductivity in a little more detail than you need at a level to explain the basic concepts of a quantum mechnical phenomenon.
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