Electron spin polarization and longitudinal autosoliton current in p-InSb in a longitudinal magnetic field

2014 ◽  
Vol 48 (2) ◽  
pp. 135-138 ◽  
Author(s):  
I. K. Kamilov ◽  
A. A. Stepurenko ◽  
A. E. Gummetov
Keyword(s):  
Magnetic Field ◽  
Spin Polarization ◽  
Electron Spin ◽  
Longitudinal Magnetic Field ◽  
Electron Spin Polarization

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.

MAGNETIC FIELDS MODULATED EXTENDED SPIN FIELD EFFECT TRANSISTORS WITH UNPARALLEL FERROMAGNETIC LEADS

2012 ◽  
Vol 27 (02) ◽  
pp. 1350016 ◽  
Author(s):  
YUN-CHANG XIAO ◽  
WEI LUO ◽  
QING-HU ZHONG ◽  
RUI ZHU ◽  
WEN-JI DENG
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Spin Polarization ◽  
Electron Spin ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Numerical Results ◽  
Electron Spin Polarization ◽  
Spin Field ◽  
Transmission Coefficients

Electron spin polarization properties of the Datta–Das spin field effect transistors are studied by taking into account the coexistence of the Rashba and Dresselhaus effects and an in-plane magnetic field. The transistor is connected to ferromagnetic leads with unparallel polarization. Transmission coefficients can be calculated and thus the Landauer–Büttiker conductance are obtained. Numerical results for the spin polarization of the conductance were discussed in detail.

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