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Jpn. J. Appl. Phys. 43 (2004) pp. L1387-L1389  |Previous Article| |Next Article|  |Table of Contents|
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Letter

Shallow Donor Impurity States of InP Studied by ³¹P NMR Spectra under Magic-Angle Spinning

Takahiro Iijima, Kenjiro Hashi, Atsushi Goto, Tadashi Shimizu and Shinobu Ohki¹

National Institute for Materials Science, Tsukuba, Ibaraki 305-0003, Japan
¹CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan

(Received June 1, 2004; revised August 16, 2004; accepted September 6, 2004; published October 8, 2004)

The impurity dependence of ¹¹⁵In-decoupled ³¹P NMR spectra under magic-angle spinning (MAS) have been studied in InP semiconductors. In the spectra of S-doped n-type and Zn-doped p-type InP samples with the carrier density of the order of 10¹⁸ cm^-3, the line shift caused by the distribution of the strength of the electron-nuclear interaction were observed. The spectrum for the S-doped sample could be simulated by considering the Fermi-contact interaction of ³¹P spins with the delocalized electron of shallow donor existing in InP with the carrier density of the order of 10¹⁷ cm^-3.

URL: http://jjap.jsap.jp/link?JJAP/43/L1387/
DOI: 10.1143/JJAP.43.L1387

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