Relaxation of the Excited States of Arsenic in Strained Germanium

K. A. Kovalevsky; Yu Yu Choporova; R. Kh Zhukavin; N. V. Abrosimov; S. G. Pavlov; H. W. Hübers; V. V. Tsyplenkov; V. D. Kukotenko; B. A. Knyazev; V. N. Shastin

doi:10.1134/S1063782620100188

Relaxation of the Excited States of Arsenic in Strained Germanium

K. A. Kovalevsky, Yu Yu Choporova, R. Kh Zhukavin, N. V. Abrosimov, S. G. Pavlov, H. W. Hübers, V. V. Tsyplenkov, V. D. Kukotenko, B. A. Knyazev, V. N. Shastin

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

Аннотация

The relaxation times of the lower p states of the arsenic donor in a germanium crystal strained along the [111] crystallographic direction are studied. Measurements are performed by the pump–probe method, using free-electron laser radiation. The states are excited from the 1s (Γ₁) ground state. The experimentally measured decay times of the 2p₀, 3p₀, and 2p_± states are 1.3, no more than 0.2, and 0.4 ns, respectively. It is shown that the relatively high relaxation rate of the 2p_± state is defined by the interaction with intravalley TA photons.

Язык оригинала	английский
Страницы (с-по)	1347-1351
Число страниц	5
Журнал	Semiconductors
Том	54
Номер выпуска	10
DOI	https://doi.org/10.1134/S1063782620100188
Состояние	Опубликовано - 1 окт 2020

Доступ к документу

10.1134/S1063782620100188

Link to publication in Scopus

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title = "Relaxation of the Excited States of Arsenic in Strained Germanium",

abstract = "The relaxation times of the lower p states of the arsenic donor in a germanium crystal strained along the [111] crystallographic direction are studied. Measurements are performed by the pump–probe method, using free-electron laser radiation. The states are excited from the 1s (Γ1) ground state. The experimentally measured decay times of the 2p0, 3p0, and 2p± states are 1.3, no more than 0.2, and 0.4 ns, respectively. It is shown that the relatively high relaxation rate of the 2p± state is defined by the interaction with intravalley TA photons.",

keywords = "arsenic, germanium, intracenter optical excitation, phonons, pump–probe method, uniaxial strain, pump-probe method, TIMES, INTRACENTER RELAXATION, POPULATION-INVERSION, DONORS",

author = "Kovalevsky, {K. A.} and Choporova, {Yu Yu} and Zhukavin, {R. Kh} and Abrosimov, {N. V.} and Pavlov, {S. G.} and H{\"u}bers, {H. W.} and Tsyplenkov, {V. V.} and Kukotenko, {V. D.} and Knyazev, {B. A.} and Shastin, {V. N.}",

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Relaxation of the Excited States of Arsenic in Strained Germanium. / Kovalevsky, K. A.; Choporova, Yu Yu; Zhukavin, R. Kh; Abrosimov, N. V.; Pavlov, S. G.; Hübers, H. W.; Tsyplenkov, V. V.; Kukotenko, V. D.; Knyazev, B. A.; Shastin, V. N.

В: Semiconductors, Том 54, № 10, 01.10.2020, стр. 1347-1351.

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

TY - JOUR

T1 - Relaxation of the Excited States of Arsenic in Strained Germanium

AU - Kovalevsky, K. A.

AU - Choporova, Yu Yu

AU - Zhukavin, R. Kh

AU - Abrosimov, N. V.

AU - Pavlov, S. G.

AU - Hübers, H. W.

AU - Tsyplenkov, V. V.

AU - Kukotenko, V. D.

AU - Knyazev, B. A.

AU - Shastin, V. N.

PY - 2020/10/1

Y1 - 2020/10/1

N2 - The relaxation times of the lower p states of the arsenic donor in a germanium crystal strained along the [111] crystallographic direction are studied. Measurements are performed by the pump–probe method, using free-electron laser radiation. The states are excited from the 1s (Γ1) ground state. The experimentally measured decay times of the 2p0, 3p0, and 2p± states are 1.3, no more than 0.2, and 0.4 ns, respectively. It is shown that the relatively high relaxation rate of the 2p± state is defined by the interaction with intravalley TA photons.

AB - The relaxation times of the lower p states of the arsenic donor in a germanium crystal strained along the [111] crystallographic direction are studied. Measurements are performed by the pump–probe method, using free-electron laser radiation. The states are excited from the 1s (Γ1) ground state. The experimentally measured decay times of the 2p0, 3p0, and 2p± states are 1.3, no more than 0.2, and 0.4 ns, respectively. It is shown that the relatively high relaxation rate of the 2p± state is defined by the interaction with intravalley TA photons.

KW - arsenic

KW - germanium

KW - intracenter optical excitation

KW - phonons

KW - pump–probe method

KW - uniaxial strain

KW - pump-probe method

KW - TIMES

KW - INTRACENTER RELAXATION

KW - POPULATION-INVERSION

KW - DONORS

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