10 October 2003 Infrared absorption study of Fe-VP defects in InP
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Proceedings Volume 5127, Sixth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (2003) https://doi.org/10.1117/12.517437
Event: Sixth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 2002, St. Petersburg, Russian Federation
Abstract
In the present work, Fe doped InP substrates were annealed at high temperatures and the effect of annealing on optical absorption spectra was systematically examined. The absorption experiments at low temperature show both a characteristic spectrum of four zero-phonon lines, which are attributed to transitions within the 5D ground state of Fe2+(3d6) ion on the indium site in a tetrahedral crystal field of phosphorus atoms and addition spectrum consisting of two peaks. The lines fall in the energy range close to that of optical transitions at Fe2+ ions in InP. The level scheme can be modeled by an Fe2+ ion that experiences a weak (111) distortion, and has a 1% lower crystal field splitting parameter Dq than exactly tetrahedral coordinated Fe2+. Zeeman measurements lead us to ascribe the new spectrum to (Fe2+In-VP) pairs.
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Vladimir P. Saveliev, Mikhail A. Pogarsky, Sergei A. Starovoitov, "Infrared absorption study of Fe-VP defects in InP", Proc. SPIE 5127, Sixth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (10 October 2003); doi: 10.1117/12.517437; https://doi.org/10.1117/12.517437
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