Optical detection of magnetic resonance on anion antisites in indium phosphide

H. P. Gislason*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The paper describes the application of optically detected magnetic resonance (ODMR) methods to the identification of antisite defects in the III-V semiconductor InP. In III-V semiconductors the high abundance of nuclei with large nuclear spins greatly limits the resolution of magnetic resonance techniques. In particular, ODMR signals characteristic of the PIn antisite in InP with slightly different g-values and hyperfine splitting have been observed. The corresponding centres cannot be distinguished with confidence without the higher resolution of electron-nuclear double resonance (ENDOR). Magnetic resonance signals of the antisite in InP are too weak to allow such measurements in the conventional detection mode, but using optically detected ENDOR (ODENDOR) in absorption as well as in emission, the isolated PIn antisite and at least one other antisite defect were identified. Moreover, the energy position of the PIn+/PIn++ level in the bandgap was determined from the optical transitions involved.

Original languageEnglish
Pages (from-to)329-348
Number of pages20
JournalApplied Magnetic Resonance
Issue number2
Publication statusPublished - Jun 1991


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