Title
Phase transitions driven by quasiparticle interactions Phase transitions driven by quasiparticle interactions
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York ,
Subject
Physics
Chemistry
Source (journal)
Phase transitions. - New York
Volume/pages
83(2010) :12 , p. 1085-1095
ISSN
0141-1594
ISI
000284539900004
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
After a survey of the solid-liquid transition, driven by phonon-phonon interactions, attention is next focussed on two phase transitions caused by electron-phonon interactions. These are (i) the Barden-Cooper-Schrieffer pure metal superconducting transition and (ii) the original Peierls instability. These have closely similar forms for the respective transition temperatures, both being related to energy gaps. Spin-phonon interactions are then discussed in relation to spin-Peierls materials. Finally, magnon-magnon interactions are treated in the context of the ferromagnetic-paramagnetic transition in the itinerant electron systems Fe, Co and Ni. Heuristic and phenomenological arguments, plus of course experiment, provide the basis for the conclusions drawn here.
E-info
https://repository.uantwerpen.be/docman/iruaauth/0ec9e7/e6b1908.pdf
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