Simple Method for Calculating the Weak-Field Electron Diamagnetism in Cubic Lattices

• Authors: S. Olszewski
• Languages of publication: EN

Abstracts

EN

The idea of electron wave packets moving along closed anisotropic Fermi surfaces placed in a constant magnetic field has been applied to the calculation of the orbital magnetic moment of an individual free electron and tightly-bound s-electron in a crystal lattice. In each case the magnetic moment is obtained as a derivative of the electron energy done with respect to the strength of the magnetic field. In the next step, calculations have been extended to electron ensembles. For a free-electron ensemble a thorough calculation of the weak-field magnetic moment gives a result similar to that obtained by a well-known method developed by Landau. On the other hand, calculations done for the s-band of the tightly-bound electrons of metallic iron give an absolute value of the magnetic moment much smaller than in the free-electron case. Simultaneously, the sign of the moment is changed indicating a lowering of the iron band electron energy with magnetization.

Keywords

EN

75.20.-g; 75.20.En; 76.40.+b

Discipline

• 75.20.-g: Diamagnetism, paramagnetism, and superparamagnetism
• 76.40.+b: Diamagnetic and cyclotron resonances
• 75.20.En: Metals and alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2002
• Volume: 101
• Issue: 2
• Pages: 249-265

Dates

published

2002-02

received

2001-08-13

(unknown)

2001-11-12

Contributors

author

S. Olszewski

• Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

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Identifiers

DOI

10.12693/APhysPolA.101.249