Metal-insulator transition in icosahedral AlPdRe thin films

Ralph Rosenbaum; Roland Haberkern; Peter Häussler; Eric Palm; Tim Murphy; Scott Hannahs; Bruce Brandt

doi:10.1088/0953-8984/12/47/302

Metal-insulator transition in icosahedral AlPdRe thin films

Ralph Rosenbaum, Roland Haberkern, Peter Häussler, Eric Palm, Tim Murphy, Scott Hannahs, Bruce Brandt

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Thin 2200 angstroms icosahedral films with compositions near Al₇₂Pd₂₀Re₈ have been fabricated on quartz glass substrates. Some of the films exhibited insulating transport properties down to 0.07 K where their resistivities followed an activated `Mott' variable-range hopping law. Other films exhibited metallic transport properties. In addition, the precursor amorphous AlPdRe films were observed to make superconducting transitions below 0.6 K; thus the amorphous and icosahedral structures exhibit contrasting metallic and insulating transport behaviours.

Original language	English
Pages (from-to)	9735-9749
Number of pages	15
Journal	Journal of Physics Condensed Matter
Volume	12
Issue number	47
DOIs	https://doi.org/10.1088/0953-8984/12/47/302
State	Published - 27 Nov 2000

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title = "Metal-insulator transition in icosahedral AlPdRe thin films",

abstract = "Thin 2200 angstroms icosahedral films with compositions near Al72Pd20Re8 have been fabricated on quartz glass substrates. Some of the films exhibited insulating transport properties down to 0.07 K where their resistivities followed an activated `Mott' variable-range hopping law. Other films exhibited metallic transport properties. In addition, the precursor amorphous AlPdRe films were observed to make superconducting transitions below 0.6 K; thus the amorphous and icosahedral structures exhibit contrasting metallic and insulating transport behaviours.",

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AU - Murphy, Tim

AU - Hannahs, Scott

AU - Brandt, Bruce

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AB - Thin 2200 angstroms icosahedral films with compositions near Al72Pd20Re8 have been fabricated on quartz glass substrates. Some of the films exhibited insulating transport properties down to 0.07 K where their resistivities followed an activated `Mott' variable-range hopping law. Other films exhibited metallic transport properties. In addition, the precursor amorphous AlPdRe films were observed to make superconducting transitions below 0.6 K; thus the amorphous and icosahedral structures exhibit contrasting metallic and insulating transport behaviours.

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Metal-insulator transition in icosahedral AlPdRe thin films

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