Abstract
We observed ESR signals related to Pt and Mn in both n-type and p-type Si. The observed hyperfine structure clearly indicates that the Pt-Mn complex involves one Pt atom and one Mn atom. The anisotropic g-tensor obtained by analyzing the angular dependence of the ESR signals indicates the trigonal (C3v) symmetry with the g-values of g|| = 2.2, g⊥ = 2.1, and the g|| axis along the 〈1 1 1〉 direction. Since it has been known that isolated Pt and Mn atoms occupy substitutional and interstitial sites in Si, respectively, we expect that the Pt-Mn complex consists of a substitutional Pt and an interstitial Mn. In addition, we investigated the dissociation of the complex by thermal treatment at 350-400 °C. The activation energy for the dissociation was determined to be 0.96 eV, which was a little higher than that for the diffusion of interstitial Mn in Si. We assume that interstitial Mn diffuses away, leaving a substitutional Pt atom after the dissociation of the Pt-Mn complex.
| Original language | English |
|---|---|
| Pages (from-to) | 198-201 |
| Number of pages | 4 |
| Journal | Materials Science and Engineering B: Solid-State Materials for Advanced Technology |
| Volume | 159-160 |
| Issue number | C |
| DOIs | |
| Publication status | Published - Mar 15 2009 |
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Keywords
- Dissociation
- Electron spin resonance
- Manganese
- Platinum
- Silicon
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering
- Mechanics of Materials
Cite this
Electron spin resonance study of a platinum-manganese complex in silicon. / Ishiyama, T.; Murakami, N.; Kamiura, Y.; Yamashita, Yoshifumi.
In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 159-160, No. C, 15.03.2009, p. 198-201.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electron spin resonance study of a platinum-manganese complex in silicon
AU - Ishiyama, T.
AU - Murakami, N.
AU - Kamiura, Y.
AU - Yamashita, Yoshifumi
PY - 2009/3/15
Y1 - 2009/3/15
N2 - We observed ESR signals related to Pt and Mn in both n-type and p-type Si. The observed hyperfine structure clearly indicates that the Pt-Mn complex involves one Pt atom and one Mn atom. The anisotropic g-tensor obtained by analyzing the angular dependence of the ESR signals indicates the trigonal (C3v) symmetry with the g-values of g|| = 2.2, g⊥ = 2.1, and the g|| axis along the 〈1 1 1〉 direction. Since it has been known that isolated Pt and Mn atoms occupy substitutional and interstitial sites in Si, respectively, we expect that the Pt-Mn complex consists of a substitutional Pt and an interstitial Mn. In addition, we investigated the dissociation of the complex by thermal treatment at 350-400 °C. The activation energy for the dissociation was determined to be 0.96 eV, which was a little higher than that for the diffusion of interstitial Mn in Si. We assume that interstitial Mn diffuses away, leaving a substitutional Pt atom after the dissociation of the Pt-Mn complex.
AB - We observed ESR signals related to Pt and Mn in both n-type and p-type Si. The observed hyperfine structure clearly indicates that the Pt-Mn complex involves one Pt atom and one Mn atom. The anisotropic g-tensor obtained by analyzing the angular dependence of the ESR signals indicates the trigonal (C3v) symmetry with the g-values of g|| = 2.2, g⊥ = 2.1, and the g|| axis along the 〈1 1 1〉 direction. Since it has been known that isolated Pt and Mn atoms occupy substitutional and interstitial sites in Si, respectively, we expect that the Pt-Mn complex consists of a substitutional Pt and an interstitial Mn. In addition, we investigated the dissociation of the complex by thermal treatment at 350-400 °C. The activation energy for the dissociation was determined to be 0.96 eV, which was a little higher than that for the diffusion of interstitial Mn in Si. We assume that interstitial Mn diffuses away, leaving a substitutional Pt atom after the dissociation of the Pt-Mn complex.
KW - Dissociation
KW - Electron spin resonance
KW - Manganese
KW - Platinum
KW - Silicon
UR - http://www.scopus.com/inward/record.url?scp=67349217860&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67349217860&partnerID=8YFLogxK
U2 - 10.1016/j.mseb.2008.10.018
DO - 10.1016/j.mseb.2008.10.018
M3 - Article
VL - 159-160
SP - 198
EP - 201
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
SN - 0921-5107
IS - C
ER -