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arXiv · 0709.1115

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

A. Narduzzo A. Enayati-Rad·S. Horii·N. E. Hussey
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Abstract

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.

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A. Narduzzo A. Enayati-Rad, S. Horii, N. E. Hussey. 2007-09-07. Possible co-existence of local itinerancy and global localization in a quasi-one-dimensional conductor. https://doi.org/10.1103/physrevlett.98.146601

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