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

In the chain compound PrBa\(_2\)Cu\(_4\)O\(_8\) 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...

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Bibliographic Details
Published in:arXiv.org 2007-09
Main Authors: A Narduzzo A Enayati-Rad, Horii, S, Hussey, N E
Format: Article
Language:English
Subjects:
Chains
Conductors
Copper
Crossovers
Localization
Magnetoresistance
Magnetoresistivity
Online Access:Get full text
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Summary:In the chain compound PrBa\(_2\)Cu\(_4\)O\(_8\) 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 PrBa\(_2\)Cu\(_4\)O\(_8\) 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:2331-8422
DOI:10.48550/arxiv.0709.1115