Salta al contenuto principale della pagina

PHYSICAL CHEMISTRY

CODE 80280
ACADEMIC YEAR 2022/2023
CREDITS
  • 6 cfu during the 2nd year of 9017 SCIENZA E INGEGNERIA DEI MATERIALI (LM-53) - GENOVA
  • 6 cfu during the 1st year of 9018 SCIENZE CHIMICHE (LM-54) - GENOVA
  • 6 cfu during the 1st year of 11430 SCIENZA E TECNOLOGIA DEI MATERIALI (LM SC.MAT.) - GENOVA
  • SCIENTIFIC DISCIPLINARY SECTOR CHIM/02
    LANGUAGE Italian
    TEACHING LOCATION
  • GENOVA
  • SEMESTER 1° Semester
    TEACHING MATERIALS AULAWEB

    OVERVIEW

    The course Physical Chemistry of Magnetic Materials is a characterizing course of inorganic-physical chemistry curriculum focused on the theoretical and experimental aspects of the physical chemistry of the magnetic materials.

     

    AIMS AND CONTENT

    LEARNING OUTCOMES

    The teaching will provide the student with the basic elements of the physical chemistry of magnetic materials. Through the correlation of morpho-structural features, chemical-physical properties, and synthetic techniques the student will be trained in the design of both massive and nanostructured magnetic materials for specific applications.

     

    AIMS AND LEARNING OUTCOMES

    In the framework  of the materials science and technology degree program, the skills acquired in the course are to be considered particularly suitable for the Materials Scientist: Research Specialist profile. On the other hand,  the topic related to the technological applications of permanent magnets provides skills that are also suitable for the profile Materials Scientist: Specialist in Technology

    PREREQUISITES

    Background in Mathematics, General Physics and general Chemistry is recommended 

    TEACHING METHODS

    Lectures. Laboratory activity. Classroom attendance is strongly recommended, and it is considered essential to perform experimental activity.

    SYLLABUS/CONTENT

    Introduction-units of measurement in magnetism. SI and c.g.s system. Origin of magnetic moment: Orbital magnetic moment and Spin magnetic moment in quantum mechanics. Fundamental states and Hund's Rules. Coupling (Russell-Saunders, jj). Diamagnetism: Origin of diamagnetism; Classification of diamagnetic substances; Pascal's Law of Additivity. Paramagnetism: Treatment according to Langevin's Theory; Treatment according to quantum mechanics (Boltzmann equation and Brillouin function); Curie's law, Curie-Weiss law. Magnetism in transition metal complexes, Valence bond theory,  Crystalline field theory. Paramagnetism of conduction electrons. Ordered magnetic systems: Weiss theory, Heisenberg model, Band model. RKKY theory Ferromagnetism: Stoner-Wohlfart model, Phenomenological aspects. Magnetic anisotropy. Magnetic domains. The hysteresis loop. Saturation induction. Remanence . Coercive field. Antiferromagnetism: Molecular Field Theory, Metamagnetic transitions: first- and second-order transitions. Spin-flop transitions. Spin-flip transitions. Ferrimagnetism: Dependence of M on T and H. the compensation temperature. Molecular field theory in ferrimagnetic systems. Permanent magnets.  Superparamagnetism: Langevin theory applied to superparamagnetic particles. Blocking temperature. Definition of critical radius of superparamagnetic particle. Molecular magnetism: Exchange interactions in organic spin systems. Blaney-Bowers theory. Study of some technological aspects of magnetism. Hard magnets, soft magnets, magnetic steels. Two practical laboratory exercises related to the study of magnetic properties of materials will be offered. The detailed course program will be discuissed with students during the course.

    RECOMMENDED READING/BIBLIOGRAPHY

    S. Blundell, Magnetism in condensed matter. Oxford: Oxford Univesity Press, 2001.

    J.M.D. Coey, Magnetism and Magnetic Materials, Cambridge University Press, New York, 2010.

    D. Peddis, P. E. Jönsson, S. Laureti, and G. Varvaro, Magnetic interactions: A tool to modify the magnetic properties of materials based on nanoparticles, vol. 6. 2014.

    G. Muscas, N. Yaacoub, and D. Peddis, Novel Magnetic Nanostrucures Unique properties and applications. Amsterdam, Netherlands: Elsevier, 2019.

    TEACHERS AND EXAM BOARD

    Exam Board

    DAVIDE PEDDIS (President)

    SAWSSEN SLIMANI

    LESSONS

    LESSONS START

    The schedule of classes is published @ https://chimica.unige.it/didattica/orari_SC

    Class schedule

    All class schedules are posted on the EasyAcademy portal.

    EXAMS

    EXAM DESCRIPTION

    The examination lasts about 1 hour and is conducted in the presence of two professors from the subject area.

    ASSESSMENT METHODS

     

    The oral examination is conducted by two faculty members and it will take at least 45 minutes. The oral exam aims to test the knowledge of the course subject, and the problem-solving ability of the students.

    Exam schedule

    Date Time Location Type Notes
    02/02/2023 15:00 GENOVA Orale
    16/02/2023 15:00 GENOVA Orale
    22/06/2023 15:00 GENOVA Orale
    06/07/2023 15:00 GENOVA Orale
    20/07/2023 15:00 GENOVA Orale
    07/09/2023 15:00 GENOVA Orale
    21/09/2023 15:00 GENOVA Orale