Spin Dynamics of Low Phosphorus-doped Silicon in the Low-Temperature and High-Field Limits

Material type: 文書・図像類

Author: MIZUSAKI, Takaoほか

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Publication date: 2010-07

Material Format: Digital

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Note (General)：: Spin dynamics of shallow-trapped donor electron spins in Si:P (phosphorous-doped silicon) has been studied by high frequency ESR. A sample with the do...

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Material Type: 文書・図像類
Title: Spin Dynamics of Low Phosphorus-doped Silicon in the Low-Temperature and High-Field Limits
Author/Editor: MIZUSAKI, Takao
SONG, Myeonghun
JEONG, Minki
KANG, Byeongki
LEE, Soonchil
UENO, Tomohiro
MATSUBARA, Akira
FUJII, Yutaka
MITSUDO, Seitaro
CHIBA, Meiro
Author Heading: MIZUSAKI, Takao
SONG, Myeonghun
JEONG, Minki
KANG, Byeongki
LEE, Soonchil
UENO, Tomohiro
MATSUBARA, Akira
FUJII, Yutaka
MITSUDO, Seitaro
CHIBA, Meiro
Publication Date: 2010-07
Publication Date (W3CDTF): 2010-07
Periodical title: 遠赤外領域開発研究
No. or year of volume/issue: 11
Volume: 11
Pages: 84-98
Text Language Code: eng
Target Audience: 一般
Note (General): Spin dynamics of shallow-trapped donor electron spins in Si:P (phosphorous-doped silicon) has been studied by high frequency ESR. A sample with the donor concentration 6.5 x 1016 cm-3, where the sample is a insulator at low temperatures and the donor is almost isolated, was investigated at 2.87 T (80 GHz) from 48 K to 1.8 K by cw-ESR with field modulation. At low temperatures, where the spin-lattice relaxation time T1 changes in many orders of magnitude, the resonance line shape changed from the usual derivative form of the absorption line at high temperatures to the non-derivative shape caused by the passage effects at low temperatures. These complex behaviors in the resonance line shape have made it possible to estimate the spin-lattice relaxation time T1. We numerically solved the Bloch equations for a given inhomogeneous line shape and obtained the ESR absorption and dispersion signal as a function of the spin lattice relaxation time T1. We analytically solve Bloch equations at the low-temperature limit (εF >>1) to understand spin dynamics. The observed T1 at a high field of 2.87 T is consistent with the reported T1 for samples with the low dopant concentration limit at 0.32 ~ 0.33 T after the theoretical correction for the magnetic field dependence. Possible dynamic nuclear polarization effect on 31P nuclear spin was observed in asymmetry of ESR intensities between two hyperfine states.
Source: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=27311&item_no=1&attribute_id=22&file_no=1
https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=27311&item_no=1&attribute_id=22&file_no=1
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ