The relaxation of the neutral state of manganese in gallium arsenide |
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Authors: | V. F. Masterov K. F. Shtel’makh V. P. Maslov S. B. Mikhrin B. E. Samorukov |
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Affiliation: | (1) St. Petersburg State Technical University, Politekhnicheskaya ul. 29, St. Petersburg, 195251, Russia |
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Abstract: | Results of investigations of the longitudinal magnetic relaxation of the neutral state of the Mn0 center in GaAs are presented. Relaxation mechanisms were determined from the broadening of the electron-spinresonance line in the temperature range of 3.4–8.2 K and from the variation in the nuclear relaxation rate in the range of 36–310 K. The nuclear relaxation investigation demonstrates that the electron relaxation is governed by the interaction between lattice vibrations and local vibrations of the center. This allows one to represent the electron relaxation at low temperatures as the consequence of anharmonicity of local vibrations of the electron dipole moment of the Mn0 center. |
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