The Effects of Intense Terahertz Laser and Magnetic Fields on Optical Properties of a Shallow Impurity in Semiconductors in the Faraday Configuration

2018 ◽  
Vol 255 (9) ◽  
pp. 1800211 ◽  
Author(s):  
Xiangfei Wei ◽  
Weiyang Wang ◽  
Lei Xu ◽  
Sha Zhang ◽  
Ren-Bing Tan
Keyword(s):  
Optical Properties ◽  
Magnetic Fields ◽  
Shallow Impurity

Probe of the Band Structure of MBE Grown p-Type InMnAs at Ultrahigh Magnetic Fields

SPIN ◽  
2015 ◽  
Vol 05 (01) ◽  
pp. 1550002 ◽  
Author(s):  
Y. Sun ◽  
F. V. Kyrychenko ◽  
G. D. Sanders ◽  
C. J. Stanton ◽  
G. A. Khodaparast ◽  
...  
Keyword(s):  
Optical Properties ◽  
Magnetic Fields ◽  
Band Structure ◽  
Heavy Hole ◽  
Theoretical Calculations ◽  
Interaction Strength ◽  
Golden Rule ◽  
Exchange Interactions ◽  
Landau Levels ◽  
P Type

We present a theoretical and experimental study on electronic and magneto-optical properties of p-type paramagnetic InMnAs dilute magnetic semiconductor (DMS) alloys in ultrahigh (> 100 T) external magnetic fields (B). Theoretical calculations are based on an 8-band Pidgeon–Brown model which is generalized to include the wavevector dependence of the electronic states along B as well as s–d and p–d exchange interactions with localized Mn d-electrons. The spin-dependent electronic structure as a function of Mn doping is computed and the dependence of the valence band structure on parameters such as the sp–d exchange interaction strength and effective masses in paramagnetic p- InMnAs alloys are examined. The cyclotron resonance (CR) and magneto-optical properties of InMnAs are calculated using Fermi's golden rule. Two strong CR peaks are observed in p-type InMnAs alloys which correspond to the transitions within either heavy-hole (HH) or light-hole (LH) Landau levels. Furthermore, we also observed strong resonance absorption for electron-active polarization which can occur in p-type semiconductors originating from transitions between the light and heavy hole Landau levels.

Quantum rings under magnetic fields: Electronic and optical properties

2000 ◽  
Vol 62 (11) ◽  
pp. 6963-6966 ◽  
Author(s):  
Z. Barticevic ◽  
M. Pacheco ◽  
A. Latgé
Keyword(s):  
Optical Properties ◽  
Magnetic Fields ◽  
Quantum Rings ◽  
Electronic And Optical Properties
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