Electron spin resonance of platinum pair complex in silicon

T. Ishiyama, T. Fukuda, Y. Yamashita, Y. Kamiura

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


We investigated a Pt-Pt pair in Si by electron spin resonance (ESR) measurement. Two kinds of ESR spectra from Pt-Pt pairs which had been already reported were not detected. However, we observed other ESR spectrum of Pt-Pt pair. The ESR spectrum showed the hyperfine structure corresponding to two equivalent Pt atoms. The anisotropic g-tensor obtained by analyzing the angular dependence of the ESR signals indicated the orthorhombic (C2 v) symmetry with the g-values of gx=2.11, gy=2.31, gz=2.09. The gz axis was along [0 0 1] direction. The gy and g z axes were along [1 1 0] and [110] directions, respectively. The ESR spectrum of Pt-Pt pair was observed in the sample only under illumination. This suggests that a change in the charge state of Pt-Pt pair is caused by carrier excitation.

Original languageEnglish
Pages (from-to)89-92
Number of pages4
JournalPhysica B: Condensed Matter
Issue number1
Publication statusPublished - Apr 1 2006
EventProceedings of the 23rd International Conference on Defects in Semiconductors -
Duration: Jul 24 2005Jul 29 2005


  • Charge state
  • Electron spin resonance
  • Platinum pair complex
  • Silicon

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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