Formation of chemically bound positively charged radiation defect induced by negative muon in diamond crystals

Belousov, Yu. M.; Sukhanov, L. P.

doi:10.1016/j.diamond.2015.05.002

Cited by 3 publications

(3 citation statements)

References 25 publications

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“…Its atomic configuration contains only two electrons in an external (unfilled) electron shell, and they are in the "mixed" state [28]:…”

Section: Electron States Of a Positively-charged Radiation Defect In mentioning

confidence: 99%

“…A transition frequency ω sp and angles for a configuration factor f (θ 1 , θ 3 ) were calculated numerically in [28] by the quantum-chemical methods. The crystalline chemical environment of clusters in Figure 2 has been taken into account by the procedure [31] based on a passivation of unnatural valences on a border of the cluster by hydrogen atoms.…”

Section: Formation Of Neutral Center ( µ B C 4 ) 0 In Diamondmentioning

confidence: 99%

“…The boron nucleus spin is I = 3/2. In silicon isotope Si 28 (92% in nature, see e.g., [9]) can capture π − and than transform into the aluminum acceptor:…”

Section: Introductionmentioning

confidence: 99%

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Evolution in Time of Radiation Defects Induced by Negative Pions and Muons in Crystals with a Diamond Structure

Belousov

2017

Crystals

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Evolution in time of radiation defects induced by negatively-charged pions and muons in crystals with diamond structures is considered. Negative pions and muons are captured by the nucleus and ionize an appropriate host atom, forming a positively-charged radiation defect in a lattice. As a result of an evolution in time, this radiation defect transforms into the acceptor center. An analysis of the full evolution process is considered for the first time. Formation of this acceptor center can be divided into three stages. At the first stage, the radiation defect interacts with a radiation trace and captures electrons. The radiation defect is neutralized completely in Si and Ge for a short time t ≤ 10 −11 s, but in diamond, the complete neutralization time is very large t ≥ 10 −6 s. At the second stage, broken chemical bonds of the radiation defect are restored. In Si and Ge, this process takes place for the neutral radiation defect, but in diamond, it goes for a positively-charged state. The characteristic time of this stage is t < 10 −8 s for Si and Ge and t < 10 −11 s for diamond. After the chemical bonds' restoration, the positively-charged, but chemically-bound radiation defect in diamond is quickly neutralized because of the electron density redistribution. The neutralization process is characterized by the lattice relaxation time. At the third stage, a neutral chemically-bound radiation defect captures an additional electron to saturate all chemical bonds and forms an ionized acceptor center. The existence of a sufficiently big electric dipolar moment leads to the electron capture. Qualitative estimates for the time of this process were obtained for diamond, silicon and germanium crystals. It was sown that this time is the shortest for diamond (≤10 −8 s) and the longest for silicon (≤10 −7 s)

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“…Its atomic configuration contains only two electrons in an external (unfilled) electron shell, and they are in the "mixed" state [28]:…”

Section: Electron States Of a Positively-charged Radiation Defect In mentioning

confidence: 99%

Section: Formation Of Neutral Center ( µ B C 4 ) 0 In Diamondmentioning

confidence: 99%

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Evolution in Time of Radiation Defects Induced by Negative Pions and Muons in Crystals with a Diamond Structure

Belousov

2017

Crystals

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Process of negative-muon-induced formation of an ionized acceptor center (μA)– in crystals with the diamond structure

Belousov

2016

J. Exp. Theor. Phys.

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Nonradiative Transitions 3E → 1A1 and $$^{1}\tilde {E}$$ → 3A2 in the NV– Center in Diamond

Belousov

2022

J. Exp. Theor. Phys.

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Formation of chemically bound positively charged radiation defect induced by negative muon in diamond crystals

Cited by 3 publications

References 25 publications

Evolution in Time of Radiation Defects Induced by Negative Pions and Muons in Crystals with a Diamond Structure

Evolution in Time of Radiation Defects Induced by Negative Pions and Muons in Crystals with a Diamond Structure

Process of negative-muon-induced formation of an ionized acceptor center (μA)– in crystals with the diamond structure

Nonradiative Transitions 3E → 1A1 and $$^{1}\tilde {E}$$ → 3A2 in the NV– Center in Diamond

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