Orbital susceptibilities of PbSe quantum dots.

نویسندگان

  • W B Jian
  • Weigang Lu
  • Jiye Fang
  • S J Chiang
  • M D Lan
  • C Y Wu
  • Z Y Wu
  • F R Chen
  • J J Kai
چکیده

Different sizes of three-dimensional PbSe quantum dots have been synthesized for the study of orbital magnetic susceptibilities. Two types of orbital susceptibilities have been found, including the Curie susceptibility and finite-size corrections to the Landau susceptibility. The Curie term of a quantum dot manifests itself in the temperature dependence of magnetic susceptibility at low temperatures, while the field dependence of differential susceptibility at high temperatures shows finite-size corrections to the Landau susceptibility. Both of the two kinds of orbital susceptibility, estimated per quantum dot, show linear dependence on the size.

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عنوان ژورنال:
  • The Journal of chemical physics

دوره 124 6  شماره 

صفحات  -

تاریخ انتشار 2006