Magnetism and Superconductivity
in Molecular Systems

Lecture, summer term 2004, Fr. 15.00-16.30, 28A301,
Physikzentrum, RWTH Aachen, Sommerfeldstr.10

PD Dr. P. Lemmens, MPI Stuttgart & RWTH Aachen



We will address the properties of molecular systems or compounds with reduced connectivity/dimensionality. Starting from an introduction to the basics of magnetism and superconductivity, we will identify common structural elements of these systems, categorize physical properties and compare phase diagrams. Important aspects of these considerations will be the existence of competing interactions/phases, the tendency for self-organization and unusual critical behavior.

Unusual critical behavior is observed in systems with reduced dimensionality, competing interactions and fluctuations of the systems due to, e.g. small spin size.



Target group: Students and other interested audience with "some background" in solid state physics and/or chemistry.


  • Overview and introduction (23.4.04)

  • Introduction to magnetism and superconductivity (30.4.04)

  • Conventional and unconventional superconductors: elementary superconductors, Rare Earth intermetallics, strong electron phonon coupling, multiband systems, high temperature superconductors

  • Electronic correlations in solids and molecular systems (14.5.04)

  • Charge density and spin density wave ground states
      vs. dimensionality and topology of the system

  • Properties of charge transfer salts

  • Molecular magnetes on the basis of high spin molecules

  • Anisotropies, environment and self organization

  • Field- and optically induced magnetization, conductivity  
    and superconductivity

  • Application-relevant aspects of nanoscale and molecular magnets 
    for data storage,  sensor and optical technologies.


<<< Vorlesungsmaterial + Fokusmaterial >>>

FOKUS:  Neue Perspektiven in der Supraleitung (SL)

FOKUS: Anregungen in niedrigdimensionalen Systemen

FOKUS: Magnetismus, Spin-Bahn-Kopplung und Anisotropien

FOKUS: niedrigdimensionale Übergangsmetalloxide

FOKUS: elektronische Korrelationen

FOKUS:  Magnetoelektronik

FOKUS:  Elektronik mit molekularen und organischen Systemen

FOKUS: Molekulare Magnete


Diese Web-Seite stellt keine Meinungsäußerung der RWTH Aachen, der TU Braunschweig oder des MPI-FKF Stuttgart dar., letzte Änderung: 15.10.2004