• Corpus ID: 3195527

Is a doped 'Kondo' insulator different from doped Silicon?

@article{Ditusa1997IsAD,
  title={Is a doped 'Kondo' insulator different from doped Silicon?},
  author={John F Ditusa and Klaus Friemelt and Ernst Bucher and Gabriel Aeppli and Arthur P. Ramirez},
  journal={arXiv: Strongly Correlated Electrons},
  year={1997}
}
We have observed the metal-insulator transition in the strongly correlated insulator FeSi with the chemical substitution of Al at the Si site. The magnetic susceptibility, heat capacity, and field dependent conductivity are measured for Al concentrations ranging from 0 to 0.08. For concentrations greater than 0.01 we find metallic properties quantitatively similar to those measured in Si:P with the exception of a greatly enhanced quasiparticle mass. Below 2 K the temperature and field dependent… 

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