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Risorsa bibliografica obbligatoria
Risorsa bibliografica facoltativa
Scheda Riassuntiva
Anno Accademico 2015/2016
Scuola Scuola di Ingegneria Industriale e dell'Informazione
Insegnamento 096058 - PHYSICS OF LOW DIMENSIONAL SYSTEMS [I.C.]
  • 096057 - THIN FILMS: MAGNETISM AND SUPERCONDUCTIVITY
Docente Ghiringhelli Giacomo Claudio
Cfu 5.00 Tipo insegnamento Modulo Di Corso Strutturato

Corso di Studi Codice Piano di Studio preventivamente approvato Da (compreso) A (escluso) Insegnamento
Ing Ind - Inf (Mag.)(ord. 270) - BV (478) NUCLEAR ENGINEERING - INGEGNERIA NUCLEARE*AZZZZ096058 - PHYSICS OF LOW DIMENSIONAL SYSTEMS [I.C.]
096075 - THIN FILMS: MAGNETISM AND SUPERCONDUCTIVITY
Ing Ind - Inf (Mag.)(ord. 270) - MI (486) ENGINEERING PHYSICS - INGEGNERIA FISICA*AZZZZ096058 - PHYSICS OF LOW DIMENSIONAL SYSTEMS [I.C.]
096075 - THIN FILMS: MAGNETISM AND SUPERCONDUCTIVITY
Ing Ind - Inf (Mag.)(ord. 270) - MI (491) MATERIALS ENGINEERING AND NANOTECHNOLOGY - INGEGNERIA DEI MATERIALI E DELLE NANOTECNOLOGIE*AZZZZ096075 - THIN FILMS: MAGNETISM AND SUPERCONDUCTIVITY

Programma dettagliato e risultati di apprendimento attesi

Thin films: Magnetism and Superconductivity

Objectives

The course presents two important phenomena that are strongly influenced by dimensionality: magnetic order and superconductivity. Both subjects are presented at a general level in solids and discussed for their modifications in thin films, at interfaces and in solids characterized by an intrinsic reduced dimensional (2D or 1D) structure. Some experimental technique for the exploration of relevant magnetic and electronic properties are also described. The aim is to broaden the knowledge of important ordering phenomena in solids and to underline how dimensionality may alter them.

 

Syllabus

Magnetism of isolated magnetic moments

Phenomenology: recalling diamagnetism, paramagnetism and atomic moments.

Crystal field: origin of CF, quenching of orbital moments, Jahn-Teller effect.

Exchange interaction.

Magnetic order and magnetic structures.

Heisenberg and Ising models.

Magnetism in metals

Pauli paramagnetism, Landau diamagnetism, Stoner model, RKKY interaction.

Excitations in magnetic systems.

                Spin waves, Stoner excitations

Magnetism at low dimensionality.

Spin chains and spin ladders, 2 dimensional magnets, thin films.

Superconductivity: phenomenology, London equations, Josephson effect, BCS theory, Cuprate superconductors (also as an example of 2D antiferromagnets).

Experimental techniques.

                Magnetic resonances, Mössbauer spectroscopy.

                Elastic and inelastic scattering for magnetic structure and magnetic excitations.

                Magneto-optical techniques.

 

Bibliography

S. Blundell “Magnetismm in condensed matter”, Oxford University Press

Ashcroft-Mermin “Solid State Physics”, Saunders College.

 

Prerequisites

Bachelor courses on Quantum physics, Structure of matter and Mathematics. Master course in Solid state physics.

 

 

 

 


Note Sulla Modalità di valutazione

Assessment

The exam consists of a short seminar followed by an oral interview.


Bibliografia
Risorsa bibliografica obbligatoriaS. Blundell, "Magnetism in condensed matter", , Editore: Oxford University Press
Risorsa bibliografica obbligatoriaAshcroft-Mermin, "Solid State Physics", Editore: Saunders College.

Mix Forme Didattiche
Tipo Forma Didattica Ore didattiche
lezione
32.0
esercitazione
16.0
laboratorio informatico
0.0
laboratorio sperimentale
0.0
progetto
0.0
laboratorio di progetto
0.0

Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua Inglese
schedaincarico v. 1.6.5 / 1.6.5
Area Servizi ICT
24/10/2020