Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Discretization of the total magnetic field by the nuclear spin bath in fluorine-doped ZnSe. / Zhukov, E.A.; Kirstein, E.; Kopteva, N. E. ; Heisterkamp, F.; Yugova, I. A. ; Korenev, V.L.; Yakovlev, D.R.; Pawlis, A.; Bayer, M.; Greilich, A.
в: Nature Communications, Том 9, № 1, 1941, 01.12.2018.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Discretization of the total magnetic field by the nuclear spin bath in fluorine-doped ZnSe
AU - Zhukov, E.A.
AU - Kirstein, E.
AU - Kopteva, N. E.
AU - Heisterkamp, F.
AU - Yugova, I. A.
AU - Korenev, V.L.
AU - Yakovlev, D.R.
AU - Pawlis, A.
AU - Bayer, M.
AU - Greilich, A.
PY - 2018/12/1
Y1 - 2018/12/1
N2 - The coherent spin dynamics of fluorine donor-bound electrons in ZnSe induced by pulsed optical excitation is studied in a perpendicular applied magnetic field. The Larmor precession frequency serves as a measure for the total magnetic field exerted onto the electron spins and, surprisingly, does not increase linearly with the applied field, but shows a step-like behavior with pronounced plateaus, given by multiples of the laser repetition rate. This discretization occurs by a feedback mechanism in which the electron spins polarize the nuclear spins, which in turn generate a local Overhauser field adjusting the total magnetic field accordingly. Varying the optical excitation power, we can control the plateaus, in agreement with our theoretical model. From this model, we trace the observed discretization to the optically induced Stark field, which causes the dynamic nuclear polarization.
AB - The coherent spin dynamics of fluorine donor-bound electrons in ZnSe induced by pulsed optical excitation is studied in a perpendicular applied magnetic field. The Larmor precession frequency serves as a measure for the total magnetic field exerted onto the electron spins and, surprisingly, does not increase linearly with the applied field, but shows a step-like behavior with pronounced plateaus, given by multiples of the laser repetition rate. This discretization occurs by a feedback mechanism in which the electron spins polarize the nuclear spins, which in turn generate a local Overhauser field adjusting the total magnetic field accordingly. Varying the optical excitation power, we can control the plateaus, in agreement with our theoretical model. From this model, we trace the observed discretization to the optically induced Stark field, which causes the dynamic nuclear polarization.
UR - http://www.scopus.com/inward/record.url?scp=85047089428&partnerID=8YFLogxK
U2 - 10.1038/s41467-018-04359-6
DO - 10.1038/s41467-018-04359-6
M3 - Article
VL - 9
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 1941
ER -
ID: 26661592