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Journal of Applied Physics / Volume 109 / Issue 11 / ARTICLES / Electronic Structure and Transport

J. Appl. Phys. 109, 113716 (2011); http://dx.doi.org/10.1063/1.3587453 (6 pages)

Low temperature transport properties of Ce-Al metallic glasses

Q. S. Zeng1,2, C. R. Rotundu3, W. L. Mao1,4, J. H. Dai5, Y. M. Xiao6, P. Chow6, X. J. Chen7, C. L. Qin8, H.-k. Mao1,2,6,7, and J. Z. Jiang1

1International Center for New-Structured Materials (ICNSM), Zhejiang University and Laboratory of New-Structured Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
2HPSynC, Carnegie Institution of Washington, Argonne, Illinois 60439, USA
3Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
4Geological and Environmental Sciences, Stanford University, Stanford, California 94305, USA; Photon Science SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA; and Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
5Department of Physics, Zhejiang University, Hangzhou 310027, China
6HPCAT, Carnegie Institution of Washington, Argonne, Illinois 60439, USA
7Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, USA
8School of Materials Science and Engineering, Hebei University of Technology, Tianjing, 300130, China

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(Received 8 March 2011; accepted 7 April 2011; published online 8 June 2011)

The low temperature transport properties of Ce75−xAl25+x (x = 0, 10, and 15 at. %) metallic glasses were investigated. Magnetic field and composition tuned magnetoresistances changing from negative to positive values were observed at low temperature. It was suggested that these peculiar phenomena were caused by the tunable competition between the Kondo effect and the Ruderman-Kittel-Kasuya-Yoshida interaction in Ce-Al metallic glass with the variation in Ce content and magnetic field. Further magnetization and Ce-2p3d resonant inelastic x-ray scattering spectroscopy measurements supported this scenario. These Ce-Al metallic glasses could provide an interesting model system for the investigation of 4f electron behaviors in complex condensed matter with tunable transport properties.

© 2011 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTAL DETAILS
  3. RESULTS AND DISCUSSION
  4. CONCLUSIONS

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KEYWORDS and PACS

Keywords

aluminium alloys, cerium alloys, Kondo effect, magnetisation, magnetoresistance, metallic glasses, RKKY interaction, X-ray scattering

PACS

  • 72.15.Gd

    Galvanomagnetic and other magnetotransport effects

  • 72.15.Qm

    Scattering mechanisms and Kondo effect

  • 75.20.Hr

    Local moment in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions

  • 75.30.Mb

    Valence fluctuation, Kondo lattice, and heavy-fermion phenomena

  • 75.60.Ej

    Magnetization curves, hysteresis, Barkhausen and related effects

  • 78.70.Ck

    X-ray scattering

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3587453

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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