Note: A time-resolved Kerr rotation system with a rotatable in-plane magnetic field

2010 ◽  
Vol 81 (10) ◽  
pp. 106106 ◽  
Author(s):  
Xuan Qian ◽  
Xiaofang Gu ◽  
Yang Ji
Keyword(s):  
Magnetic Field ◽  
Kerr Rotation ◽  
Time Resolved ◽  
Rotation System

Determining the sign of g factor via time-resolved Kerr rotation spectroscopy with a rotatable magnetic field

2011 ◽  
Vol 20 (8) ◽  
pp. 087503 ◽  
Author(s):  
Xiao-Fang Gu ◽  
Xuan Qian ◽  
Yang Ji ◽  
Lin Chen ◽  
Jian-Hua Zhao
Keyword(s):  
Magnetic Field ◽  
Kerr Rotation ◽  
Time Resolved ◽  
G Factor

Effective Nuclear Field Measurement in a Single Quantum Well via Time-Resolved Kerr Rotation Technique

2014 ◽  
Vol 936 ◽  
pp. 534-539
Author(s):  
Li Ping Yan ◽  
Reina Kaji ◽  
Satoru Adachi
Keyword(s):  
Magnetic Field ◽  
Quantum Well ◽  
Spin Polarization ◽  
Electron Spin ◽  
Electron Spin Polarization ◽  
Spin Component ◽  
Kerr Rotation ◽  
Time Resolved ◽  
Dephasing Time ◽  
Nuclear Field

Effective magnetic field of nuclear spin polarization (NSP) under circularly polarized pumps excitation and the dephasing time of resident electron spin polarization under pump and control excitation has been detected in a single CdTe quantum well (QW) by a time-resolved Kerr rotation (TRKR) technique. We deduced that the experimental method is verified with the effect, to a certain extent, through confirming the external magnetic field results. In addition, the nuclear field is revealed to be increased with the increasing electron spin component due to the enhanced electron-nuclear hyperfine interaction. Significant nuclear field is observed as 1.85 mT with the applied magnetic field tilted by about 15 degree. What is more, we found the spin dephasing time (SDT) has little relation with the created NSP field, but it decreases largely with the increasing spin polarization magnitude under pump excitation and the spin vector dispersions induced by control pulses.

Magneto-Optical Kerr Rotation of the PtMnSb Compound in a High Magnetic Field

1990 ◽  
Vol 29 (Part 2, No. 2) ◽  
pp. L306-L307 ◽  
Author(s):  
K\=oki Takanashi ◽  
Jun Watanabe ◽  
Giyuu Kido ◽  
Hiroyasu Fujimori
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field ◽  
Kerr Rotation

Nonexponential decoherence of collective spin states in 2DES probed by time-resolved Kerr rotation

2021 ◽  
pp. 114285
Author(s):  
E. Stepanets-Khussein ◽  
L.I. Musina ◽  
A.V. Larionov ◽  
A.S. Zhuravlev ◽  
I.V. Kukushkin ◽  
...  
Keyword(s):  
Spin States ◽  
Kerr Rotation ◽  
Time Resolved

scholarly journals Implementation of a Faraday rotation diagnostic at the OMEGA laser facility

2018 ◽  
Vol 6 ◽  
Author(s):  
A. Rigby ◽  
J. Katz ◽  
A. F. A. Bott ◽  
T. G. White ◽  
P. Tzeferacos ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Faraday Rotation ◽  
Field Measurements ◽  
Thomson Scattering ◽  
Proton Radiography ◽  
Time Resolved ◽  
Rotation Measurement ◽  
Laser Facility ◽  
Omega Laser

Magnetic field measurements in turbulent plasmas are often difficult to perform. Here we show that for ${\geqslant}$kG magnetic fields, a time-resolved Faraday rotation measurement can be made at the OMEGA laser facility. This diagnostic has been implemented using the Thomson scattering probe beam and the resultant path-integrated magnetic field has been compared with that of proton radiography. Accurate measurement of magnetic fields is essential for satisfying the scientific goals of many current laser–plasma experiments.

scholarly journals Спиновая динамика отрицательно заряженных экситонов в квантовых точках InP/(In,Ga)P в магнитном поле

2020 ◽  
Vol 62 (11) ◽  
pp. 1816
Author(s):  
С.В. Некрасов ◽  
Ю.Г. Кусраев ◽  
И.А. Акимов ◽  
L. Langer ◽  
M. Kotur ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Circular Polarization ◽  
Ground State ◽  
Heavy Hole ◽  
Spin Dynamics ◽  
Nuclear Spins ◽  
Time Resolved ◽  
Exciton Ground State ◽  
Charged Exciton

The dynamics of the photoluminescence negative circular polarization of the InP/(In,Ga)P quantum dots ensemble was studied. We find that in the time-resolved dependences of the polarization there are no oscillations in Voigt magnetic field. Also, with increasing field the polarization declines to zero. Such behavior is attributed to the peculiarities of the negatively charged exciton spin dynamics, particularly, to the fact that in the negatively charged exciton ground state the spin dynamics is governed by the heavy hole. We show that magnetic field depolarization of the photoluminescence occurs once the field of dynamically polarized nuclear spins acting on electron spins is surpassed.

Time-resolved measurement of micro-magnetic field by stroboscopic electron beam tomography

1992 ◽  
Vol 28 (5) ◽  
pp. 3117-3122 ◽  
Author(s):  
H. Shinada ◽  
H. Suzuki ◽  
S. Sasaki ◽  
H. Todokoro ◽  
H. Takano ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electron Beam ◽  
Electron Beam Tomography ◽  
Time Resolved
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