Superlattice modification of the valence-band spin splitting inInxGa1−xAs/GaAs superlattices up to 45 T

1993 ◽  
Vol 48 (16) ◽  
pp. 12323-12325 ◽  
Author(s):  
R. J. Warburton ◽  
R. J. Nicholas ◽  
S. Sasaki ◽  
N. Miura ◽  
K. Woodbridge
Keyword(s):  
MRS Advances ◽  
2017 ◽  
Vol 2 (3) ◽  
pp. 153-158 ◽  
Author(s):  
Muhammad Azeem

AbstractOptical transmission spectra are collected in the ferromagnetic state of GdN at various temperatures. The temperature dependent extinction coefficient extracted from the transmission measurements show that the conduction and valence band states are spin polarized. The results confirm the LSDA+U estimates of the energy gap associated with the majority/minority-spins and also the magnitude of the spin splitting.


1987 ◽  
Vol 65 (3) ◽  
pp. 199-203 ◽  
Author(s):  
H. El Alaoui Lamrani ◽  
M. J. Aubin

The first measurements of the interband magnetotransmission of Cd3As2 using circularly polarized radiation are reported. The single crystals were mounted in the Faraday configuration at 10 K. An analysis of the experimental results on the basis of the Bodnar model shows that spin splitting of the conduction electrons has been observed. A further analysis of the model shows, however, that it predicts an unrealistic behavior of the valence-band Landau levels (this constitutes the first reported results concerning this band). Thus, it is not possible to fit the data to the model, but by assuming a flat heavy-hole band, a reasonable fit is obtained. A calculation of the transition probabilities also leads to consistent results. It is concluded that changes in the Bodnar model are necessary to describe the valence band correctly.


1987 ◽  
Vol 102 ◽  
Author(s):  
X. Liu ◽  
A. Petrou ◽  
G. A. Prinz ◽  
B. T. Jonke ◽  
J. J. Krebs ◽  
...  

ABSTRACTWe present a magnetoreflectivity study of the excitons in MBE grown Zn1−xFexSe crystals for x=0.017, 0.027 and 0.043. The excitonic spinsplitting was studied as function of magnetic field in both the Faraday and Voigt geometries. The exchange integrals were determined from the conduction and valence band spin-splittings. The exciton spin-splitting was also studied as function of temperature. This study yielded the value of the energy spacing of the Fe++ states and also verified that Zn1−xFexSe is a Van Vleck paramagnet.


1991 ◽  
Vol 6 (5) ◽  
pp. 359-364 ◽  
Author(s):  
R J Warburton ◽  
R W Martin ◽  
R J Nicholas ◽  
L K Howard ◽  
M T Emeny

PIERS Online ◽  
2006 ◽  
Vol 2 (6) ◽  
pp. 562-566 ◽  
Author(s):  
Chun-Nan Chen ◽  
Kao-Feng Yarn ◽  
Win Jet Luo ◽  
Jih-Chen Chiang ◽  
Ikai Lo ◽  
...  

2019 ◽  
Vol 7 (21) ◽  
pp. 6241-6245 ◽  
Author(s):  
Wei-Wei Yan ◽  
Xiao-Fei Li ◽  
Xiang-Hua Zhang ◽  
Xinrui Cao ◽  
Mingsen Deng

Boron adsorption induces a heavily localized state right at the Fermi level only in the family of W = 3p + 1 and thus spin-splitting occurs spontaneously.


2019 ◽  
Vol 122 (12) ◽  
Author(s):  
Koichiro Yaji ◽  
Anton Visikovskiy ◽  
Takushi Iimori ◽  
Kenta Kuroda ◽  
Singo Hayashi ◽  
...  
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