Issue |
Europhys. Lett.
Volume 47, Number 6, September II 1999
|
|
---|---|---|
Page(s) | 681 - 687 | |
Section | Condensed matter: structure, mechanical and thermal properties | |
DOI | https://doi.org/10.1209/epl/i1999-00443-7 | |
Published online | 01 September 2002 |
Pauli susceptibility of nonadiabatic Fermi liquids
1
Ecole Politechnique Fédérale de Lausanne DMT-IPM CH-1015 Lausanne, Switzerland
2
Dipartimento di Fisica and Unità INFM, Università di Roma "La Sapienza” P.le A. Moro 2, I-00185 Roma, Italy
Received:
30
March
1999
Accepted:
5
July
1999
The nonadiabatic regime of the electron-phonon interaction leads to behaviors of some physical measurable quantities qualitatively different from those expected from the Migdal-Eliashberg theory. Here we identify in the Pauli paramagnetic susceptibility χ one of such quantities and show that the nonadiabatic corrections reduce χ with respect to its adiabatic limit. We also show that the nonadiabatic regime induces an isotope dependence of χ, which in principle could be measured.
PACS: 63.20.Kr – Phonon-electron and phonon-phonon interactions / 71.38.+i – Polarons and electron-phonon interactions / 76.30.-v – Electron paramagnetic resonance and relaxation
© EDP Sciences, 1999
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.