Abstract
Real understanding of general magnetism presumes a fundamental knowledge about atomic magnetism. We establish the electron spin and the spin–orbit interaction through the relativistic Dirac equation. With the help of the extremely useful Wigner–Eckart theorem, we can describe, quantitatively, the individual atomic electron, when it sees a spherically symmetric nuclear field and an external magnetic field. The usual assumption that the nucleus is a positive point charge imposes restrictions. Correction to this assumption leads to hyperfine interaction terms. While we can set up the Hamiltonian of a one-electron atom practically completely, the case of many-electron atom requires already first simplifications.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Nolting, W., Ramakanth, A. (2009). Atomic Magnetism. In: Quantum Theory of Magnetism. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85416-6_2
Download citation
DOI: https://doi.org/10.1007/978-3-540-85416-6_2
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-85415-9
Online ISBN: 978-3-540-85416-6
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)