Possible coexistence of local itinerancy and global localization in a quasi-one-dimensional conductor

In the chain compound PrBa2Cu4O8 localization appears simultaneously with a dimensional crossover in the electronic ground state when the scattering rate in the chains exceeds the hopping rate between the chains. Here we report the discovery of a large, transverse magnetoresistance in PrBa2Cu4O8 in...

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Bibliographic Details
Published inPhysical review letters Vol. 98; no. 14; p. 146601
Main Authors Narduzzo, A, Enayati-Rad, A, Horii, S, Hussey, N E
Format Journal Article
LanguageEnglish
Published United States 06.04.2007
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Summary:In the chain compound PrBa2Cu4O8 localization appears simultaneously with a dimensional crossover in the electronic ground state when the scattering rate in the chains exceeds the hopping rate between the chains. Here we report the discovery of a large, transverse magnetoresistance in PrBa2Cu4O8 in the localized regime. This result suggests a novel form of localization whereby electrons retain their metallic (quasi-one-dimensional) character over a microscopic length scale despite the fact that, macroscopically, they exhibit localized (one-dimensional) behavior.
ISSN:0031-9007
DOI:10.1103/physrevlett.98.146601