太赫兹场辅助的单量子阱自旋共振输运

张存喜; 王瑞; 孔令民

doi:10.7498/aps.59.4980

摘要

在考虑自旋轨道耦合的情况下,研究了通过一非磁性半导体异质结的太赫兹光子驱动的电子输运,研究结果显示频率相关的电导谱出现不对称的Fano型共振的劈裂;随着振荡场幅度的增加,多光子辅助过程出现;通过改变外加场参数,可以实现自旋过滤目的,特别是在干涉相消Fano型共振的频率位置时,出现了100%纯的自旋极化流.这些属性有助于大范围可调的自旋过滤器的实现并且可以得到纯的自旋透射流.

关键词:

We investigate theoretically the intense terahertz field-driven electron-transport through a nonmagnetic semiconductor-heterostructure with spin-orbit coupling. It is found that the frequency-dependent conductivity spectra possess splitting resonance-peaks of asymmetric Fano-type, and multiple-photon-process arises with the increasing amplitude of oscillating field. By changing the external field parameters, the purpose of spin filtering may be realized, and 100% pure spin-polarized current at the frequency of Fano-resonance can also be achieved. These interesting features may be a very useful basis for devising a wide range tunable spin filter and realizing pure spin current.

Keywords:

作者及机构信息

1.
浙江海洋学院物理系,舟山 316000

基金项目: 国家自然科学基金(批准号:10947163, 10947164)、浙江省教育厅科研计划(批准号:Y200804735)和浙江海洋学院基金(批准号:11062100509,21065012108)资助的课题.

Authors and contacts

1.
Department of Physics, Zhejiang Ocean University, Zhoushan 316000, China

参考文献

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[2]	Hall K C, Lau W H, Gundogdu K, Flatte M E, Boggess T F 2003 Appl. Phys. Lett. 83 2937
[3]	Smorchkova I P, Samarth N 1997 Phys. Rev. Lett. 78 3571
[4]	Li Z J 2005 Chin. Phys. 14 2100
[5]	Wang J M, Wang R, Zhang Y P, Liang J Q 2007 Chin. Phys. 16 2069
[6]	Wang J M, Wang R, Liang J Q 2007 Chin. Phys. 16 2075
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[9]	Morten J P, Brataas A, Belzig W 2004 Phys. Rev. B 70 212508
[10]	Urazhdin S, Loloee R, Pratt W P 2005 Phys. Rev. B 71 100401
[11]	Hirsch J E 1999 Phys. Rev. Lett. 83 1834
[12]	Zhang S 2000 Phys. Rev. Lett. 85 393
[13]	Murakami S, Nagaosa N, Zhang S 2003 Science 301 1348
[14]	Bernevig B A, Zhang S C 2005 Phys. Rev. Lett. 95 016801
[15]	Guo G Y, Yao Y G, Niu Q 2005 Phys. Rev. Lett. 94 226601
[16]	Perel V I, Tarasenko S A, Yassievich I N, Ganichev S D, Belkov V V, Prettl W 2003 Phys. Rev. B 67 201304(R)
[17]	Glazov M M, Alekseev P S, Odnoblyudov M A, Chistyakov V M, Tarasenko S A, Yassievich I N 2005 Phys. Rev. B 71 155313
[18]	Voskoboynikov A, Liu S S, Lee C P, Tretyak O 2000 J. Appl. Phys. 87 387
[19]	Shang C E, Guo Y, Chen X Y 2004 J. Appl. Phys. 96 3339
[20]	Hall K C, Lau W H, Güdogdu K, Flatté M E, Boggess T F 2003 Appl. Phys. Lett. 83 2937
[21]	Koga T, Nitta J, Takayanagi H, Datta S 2002 Phys. Rev. Lett. 88 126601
[22]	Ting D Z Y, Cartoixa X 2002 Appl. Phys. Lett. 81 4198
[23]	Guimars P S S, Brian J K, Allen S J, Hopkins P F, Gossard A C, Florez L T, Harbison J P 1993 Phys. Rev. Lett. 70 3792
[24]	Drexler H, Scott J S, Allen S J, Campman K L, Gossard A C 1995 Appl. Phys. Lett. 67 2816
[25]	Fano U 1961 Phys. Rev. 124 1866
[26]	Fano U, Cooper J W 1965 Phys. Rev. A 137 1364
[27]	Dresselhaus G 1955 Phys. Rev. 100 580
[28]	Shirley J H 1965 Phys. Rev. 138 B979
[29]	Holthaus M, Hone D 1993 Phys. Rev. B 47 6499
[30]	Fromherz T 1997 Phys. Rev. B 56 4772
[31]	Zhang C X, Nie Y H, Liang J Q 2008 Chin. Phys. B 17 2670
[32]	Li W, Reichl L E 1999 Phys. Rev. B 60 15732
[33]	Bagwell P F, Lake R K 1992 Phys. Rev. B 46 15329
[34]	Landauer R 1989 J. Phys. Condens. Matter 1 8099
[35]	Buttiker M 1986 Phys. Rev. Lett. 57 1761
[36]	Christen T, Buttiker M 1996 Phys. Rev. Lett. 77 143
[37]	Berman G P, Bulgakov E N, Campbell D K, Sadreev A F 1996 Physica B 225 1
[38]	Bulgakov E N, Sadreev A F 1996 J. Phys.: Condens. Matter 8 8869

施引文献

[1]	Datta S, Das B 1990 Appl. Phys. Lett. 56 665
[2]	Hall K C, Lau W H, Gundogdu K, Flatte M E, Boggess T F 2003 Appl. Phys. Lett. 83 2937
[3]	Smorchkova I P, Samarth N 1997 Phys. Rev. Lett. 78 3571
[4]	Li Z J 2005 Chin. Phys. 14 2100
[5]	Wang J M, Wang R, Zhang Y P, Liang J Q 2007 Chin. Phys. 16 2069
[6]	Wang J M, Wang R, Liang J Q 2007 Chin. Phys. 16 2075
[7]	Bena C, Balents L 2002 Phys. Rev. B 65 11510
[8]	McGuire J P, Ciuti C, Sham L J 2004 Phys. Rev. B 69 115339
[9]	Morten J P, Brataas A, Belzig W 2004 Phys. Rev. B 70 212508
[10]	Urazhdin S, Loloee R, Pratt W P 2005 Phys. Rev. B 71 100401
[11]	Hirsch J E 1999 Phys. Rev. Lett. 83 1834
[12]	Zhang S 2000 Phys. Rev. Lett. 85 393
[13]	Murakami S, Nagaosa N, Zhang S 2003 Science 301 1348
[14]	Bernevig B A, Zhang S C 2005 Phys. Rev. Lett. 95 016801
[15]	Guo G Y, Yao Y G, Niu Q 2005 Phys. Rev. Lett. 94 226601
[16]	Perel V I, Tarasenko S A, Yassievich I N, Ganichev S D, Belkov V V, Prettl W 2003 Phys. Rev. B 67 201304(R)
[17]	Glazov M M, Alekseev P S, Odnoblyudov M A, Chistyakov V M, Tarasenko S A, Yassievich I N 2005 Phys. Rev. B 71 155313
[18]	Voskoboynikov A, Liu S S, Lee C P, Tretyak O 2000 J. Appl. Phys. 87 387
[19]	Shang C E, Guo Y, Chen X Y 2004 J. Appl. Phys. 96 3339
[20]	Hall K C, Lau W H, Güdogdu K, Flatté M E, Boggess T F 2003 Appl. Phys. Lett. 83 2937
[21]	Koga T, Nitta J, Takayanagi H, Datta S 2002 Phys. Rev. Lett. 88 126601
[22]	Ting D Z Y, Cartoixa X 2002 Appl. Phys. Lett. 81 4198
[23]	Guimars P S S, Brian J K, Allen S J, Hopkins P F, Gossard A C, Florez L T, Harbison J P 1993 Phys. Rev. Lett. 70 3792
[24]	Drexler H, Scott J S, Allen S J, Campman K L, Gossard A C 1995 Appl. Phys. Lett. 67 2816
[25]	Fano U 1961 Phys. Rev. 124 1866
[26]	Fano U, Cooper J W 1965 Phys. Rev. A 137 1364
[27]	Dresselhaus G 1955 Phys. Rev. 100 580
[28]	Shirley J H 1965 Phys. Rev. 138 B979
[29]	Holthaus M, Hone D 1993 Phys. Rev. B 47 6499
[30]	Fromherz T 1997 Phys. Rev. B 56 4772
[31]	Zhang C X, Nie Y H, Liang J Q 2008 Chin. Phys. B 17 2670
[32]	Li W, Reichl L E 1999 Phys. Rev. B 60 15732
[33]	Bagwell P F, Lake R K 1992 Phys. Rev. B 46 15329
[34]	Landauer R 1989 J. Phys. Condens. Matter 1 8099
[35]	Buttiker M 1986 Phys. Rev. Lett. 57 1761
[36]	Christen T, Buttiker M 1996 Phys. Rev. Lett. 77 143
[37]	Berman G P, Bulgakov E N, Campbell D K, Sadreev A F 1996 Physica B 225 1
[38]	Bulgakov E N, Sadreev A F 1996 J. Phys.: Condens. Matter 8 8869

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