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Title
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Phase transitions driven by quasiparticle interactions
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Author
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Abstract
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| 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. |
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Language
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English
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Source (journal)
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Phase transitions. - New York
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Publication
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New York
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2010
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ISSN
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0141-1594
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DOI
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10.1080/01411594.2010.509641
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Volume/pages
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83
:12
(2010)
, p. 1085-1095
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ISI
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000284539900004
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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