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Updated: Feb 15, 2026

The Effect of Charging and Discharging Lithium Iron Phosphate-graphite Cells at Different Temperatures on Degradation
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Charge Density Waves in Graphite: Towards the Magnetic Ultraquantum Limit.

F Arnold1, A Isidori1, E Kampert2

  • 1Royal Holloway, University of London, TW20 0EX Egham, United Kingdom.

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|January 18, 2018
PubMed
Summary

Magneto-transport measurements in graphite reveal the collapse of charge density waves in electron and hole Landau levels. Theoretical modeling predicts an insulating state above 73.5 T, with unique surface state transport properties.

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Area of Science:

  • Condensed Matter Physics
  • Materials Science

Background:

  • Graphite serves as a model system for studying three-dimensional electrons and holes.
  • The magnetic quantum limit confines charges to the lowest Landau levels.

Purpose of the Study:

  • Investigate charge density wave states in graphite under extreme magnetic fields.
  • Characterize the electronic properties of graphite in the ultraquantum limit.

Main Methods:

  • Magneto-transport measurements in pulsed magnetic fields up to 60 T.
  • Theoretical modeling to predict electronic behavior at higher fields.

Main Results:

  • Observed the collapse of two charge density wave states in electron and hole Landau levels at 52.3 T and 54.2 T.
  • Evidence for a commensurate charge density wave in the electron Landau level at 47.1 T.
  • Theoretical modeling predicts an insulating state above 73.5 T.

Conclusions:

  • The observed phenomena provide insights into density wave instabilities in graphite.
  • The predicted insulating state exhibits novel surface states with anisotropic charge transport.
  • This research advances the understanding of electronic behavior in low-dimensional systems under extreme magnetic conditions.