Title
Polarons and bipolarons in oxides
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Berlin ,
Subject
Physics
Source (journal)
Zeitschrift für Physik : B : condensed matter. - Berlin
Source (book)
Euroconference on Electron-Phonon-Interactions and Phase Transitions in, Honor of Professor Heinz Bilz, JUN 09-15, 1997, ERICE, ITALY
Volume/pages
104(1997) :4 , p. 601-604
ISSN
0722-3277
ISI
000071077100003
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
The physical properties of Frohlich polarons and bipolarons are reviewed in relation to the recent experimental study of the mid-infrared absorption spectra nf high-T(c) cuprate superconductors, in particular, of Nd(2)CuO(4-y), YBa(2)Cu(3)O(6+x) and La(2)CuO(4+x). The spectral region studied is of particular relevance for the open question of the presence of polarons and bipolarons in these materials, since it coincides with the frequency region where polaron and bipolaron absorption is to be expected. In our view, the optical absorption spectra as observed in the doped cuprates are a manifestation of the polaron type relaxed excited final states.
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