Physics NotePublished
Ruderman-Kittel-Kasuya-Yosida Polarization Across a Potential well in one Dimension
J. S. Helman; W. Baltensperger
1994
Publication details
- Authors
- J. S. Helman; W. Baltensperger
- Type
- Physics Note
- Status
- Published
- Publication date
- 1994
- Description
- The RKKY spin polarization due to a point field is calculated for an electron gas with a reflectionless potential well. An approximation which uses a space dependent Fermi wave number is introduced. It follows remarkably well the exact result. For a class of potentials it is shown that the integrated spin polarisation equals the Pauli susceptibility multiplied by the coupling constant and the mean probability density of the electron states of the Fermi surface at the position of the point field.
- Year
- 1994
- Number
- CBPF-NF-013/94
- Linked to a thesis
- No
- Linked to a grant
- No