Chin. Phys. Lett.  2016, Vol. 33 Issue (06): 064206    DOI: 10.1088/0256-307X/33/6/064206
FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
Effect of Quasi-Fermi Level on the Degree of Electron Spin Polarization in GaAs
Li-Hua Teng, Li-Jun Mu, Xia Wang**
Optoelectronic Materials and Technologies Engineering Laboratory of Shandong, Department of Physics, Qingdao University of Science and Technology, Qingdao 266061
Cite this article:   
Li-Hua Teng, Li-Jun Mu, Xia Wang 2016 Chin. Phys. Lett. 33 064206
Download: PDF(473KB)   PDF(mobile)(KB)   HTML
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract With spin-polarized-dependent band gap renormalization effect taken into account, the energy-dependent evolution of electron spin polarization in GaAs is calculated at room temperature and at a low temperature of 10 K. We consider the exciting light with right-handed circular polarization, and the calculation results show that the degree of electron spin polarization is dependent strongly on the quasi-Fermi levels of $|1/2\rangle$ and $|-1/2\rangle$ spin conduction bands. At room temperature, the degree of electron spin polarization decreases sharply from 1 near the bottom of the conduction band, and then increases to a stable value above the quasi-Fermi level of the $|-1/2\rangle$ band. The greater the quasi-Fermi level is, the higher the degree of electron spin polarization with excessive energy above the quasi-Fermi level of the $|-1/2\rangle$ band can be achieved. At low temperature, the degree of electron spin polarization decreases from 1 sharply near the bottom of the conduction band, and then increases with the excessive energy, and in particular, up to a maximum of 1 above the quasi-Fermi level of the $|1/2\rangle$ band.
Received: 13 January 2016      Published: 30 June 2016
PACS:  42.50.Md (Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency)  
  78.20.Ls (Magneto-optical effects)  
  78.47.-p (Spectroscopy of solid state dynamics)  
TRENDMD:   
URL:  
https://cpl.iphy.ac.cn/10.1088/0256-307X/33/6/064206       OR      https://cpl.iphy.ac.cn/Y2016/V33/I06/064206
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
Li-Hua Teng
Li-Jun Mu
Xia Wang
[1]Pikus G E and Titkov A N 1984 Optical Orientation (Amsterdam: North-Holland)
[2]?uti? I, Fabian J and Sarma D D 2004 Rev. Mod. Phys. 76 323
[3]Datta S and Das B 1990 Appl. Phys. Lett. 56 665
[4]Wu Q H, Zhao P and Liu D S 2016 Chin. Phys. Lett. 33 037303
[5]Fiederling R, Keim M, Reuscher G, Ossau W, Schmidt G, Waag A and Molenkamp L W 1999 Nature 402 787
[6]H?gele D, Oestreich M, Rühle W W, Nestle N and Eberl K 1998 Appl. Phys. Lett. 73 1580
[7]Kikkawa J M and Awschalom D D 1999 Nature 397 139
[8]Salis G, Kato K, Ensslin K, Driscoll D C, Gossard A C and Awschalom D D 2001 Nature 414 619
[9]Hallstein S, Berger J D, Hilpert M, Schneider H C, Rühle W W, Jahnke F, Koch S W, Gibbs H M, Khitrova G and Oestreich M 1997 Phys. Rev. B 56 R7076
[10]Nemec P, Kerachian Y, van Driel H M and Smirl A L 2005 Phys. Rev. B 72 245202
[11]Boggess T F, Olesberg J T, Yu C, Flatté M E and Lau W H 2000 Appl. Phys. Lett. 77 1333
[12]Teng L H, Wang X, Ge W K and Lai T S 2011 Semicond. Sci. Technol. 26 095012
[13]Teng L H, Mu L J and Wang X 2014 Physica B 436 177
[14]Prabhu S S and Vengurlekar A S 2004 J. Appl. Phys. 95 7803
[15]Liu E K and Luo J S 2008 Semiconductor Physics (Beijing: Electron. Industry) chap 3 p 67
[16]Lai T S, Teng L H, Jiao Z X, Xu H H, Lei L, Wen J H and Lin W Z 2007 Appl. Phys. Lett. 91 062110
Related articles from Frontiers Journals
[1] WANG Fa-Qiang, LIU Wei-Ci, LIANG Rui-Sheng. Vacuum Rabi Oscillation of an Atom without Rotating-Wave Approximation[J]. Chin. Phys. Lett., 2008, 25(12): 064206
[2] ZHU Chang-Jun, HE Jun-Fang, ZHAI Xue-Jun, XUE Bing. Observation of Quantum Beating from Two Coupled Parametric Six-Wave Mixing Signals in Rb[J]. Chin. Phys. Lett., 2008, 25(9): 064206
[3] ZHANG Xiang-Yun, SUN Zhen-Rong, CHEN Guo-Liang, WANG Zu-Geng. Effect of Time-Dependent Ionization on Propagation of a Few-Cycle Circularly Polarized Laser Pulse in Two-Level Medium[J]. Chin. Phys. Lett., 2008, 25(1): 064206
[4] ZHU Chang-Jun, HE Jun-Fang, XUE Bing, ZHAI Xue-Jun. Observation of Quantum Beat in Rb by Parametric Four-Wave Mixing[J]. Chin. Phys. Lett., 2007, 24(8): 064206
[5] Lü Xin-You, LI Jia-Hua, LIU Ji-Bing. Controllable Optical Bistability and Multistability in a Four-Level Atomic System with Closed-Loop Configuration[J]. Chin. Phys. Lett., 2007, 24(1): 064206
[6] DUAN Wen-Shan, CHEN Jian-Hong, YANG Hong-Juan, SHI Yu-Ren, WANG Hong-Yan. Nonlinear Wave in a Disc-Shaped Bose--Einstein Condensate[J]. Chin. Phys. Lett., 2006, 23(8): 064206
[7] HUANG Guo-Xiang, Jacob Szeftel. Coupled Optical Solitons for Pulse Propagation in Multi-Level Media[J]. Chin. Phys. Lett., 2006, 23(4): 064206
[8] LIU Bing-Xin, GONG Shang-Qing, SONG Xiao-Hong, LI Ru-Xin, XU Zhi-Zhan. Spectral Effects for an Ultrashort Pulse Train Propagating in a Two-Level Atom Medium[J]. Chin. Phys. Lett., 2005, 22(6): 064206
[9] LIN Wei-Zhu, SHOU Qian, LIU Lu-Ning, WU Yu, WEN Jin-Hui, LAI Tian-Shu. Ultrafast Relaxation of Coherent Control Photocurrent in AlGaAs/GaAs Multi Quantum Wells[J]. Chin. Phys. Lett., 2005, 22(1): 064206
[10] HU Zheng-Feng, DU Chun-Guang, LI Dai-Jun, LI Shi-Qun. Stimulated Raman Adiabatic Population Transfer of Two Bose-Einstein Condensates[J]. Chin. Phys. Lett., 2002, 19(9): 064206
[11] ZENG Hao-Sheng, KUANG Le-Man, GAO Ke-Lin. Correlative Collapses and Revivals in Two Trapped Ions[J]. Chin. Phys. Lett., 2002, 19(4): 064206
[12] LIN Fu-Cheng, Jongmin Lee, Yongjoo Rhee, Jonghoon Yi, Hyunmin Park. Raman Scattering in Coherently Prepared Atomic System [J]. Chin. Phys. Lett., 2001, 18(11): 064206
[13] LU Jing, DU Si-De, FAN Kang-Nian, Lee Soo-Ying. A Theoretical Distinction Between Time-Resolved Resonance Raman and Resonance Fluorescence[J]. Chin. Phys. Lett., 2000, 17(4): 064206
[14] LUO Qi, DAI De-chang, YU Xiang-yang, QIU Zhi-ren, ZHOU Jian-ying, YAN Chun-hua, CHEN Zhi-da. Fluorescence-Detected Ultrafast Free-Induction Decay in Powdered Rare Earth Solids[J]. Chin. Phys. Lett., 2000, 17(2): 064206
[15] YANG Xiao-xue, WU Ying, LUO Xue-li, GAO Ke-lin, XIAO Yi. Nonlinear Jaynes-Cummings Dynamics of a Trapped Ion Under a Dressed-State Description[J]. Chin. Phys. Lett., 1998, 15(3): 064206
Viewed
Full text


Abstract