메뉴 건너뛰기




Volumn 73, Issue 23, 2006, Pages

Bias-controllable intrinsic spin polarization in a quantum dot: Proposed scheme based on spin-orbit interaction

Author keywords

[No Author keywords available]

Indexed keywords


EID: 33744727233     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.73.235301     Document Type: Article
Times cited : (141)

References (38)
  • 2
    • 0032573499 scopus 로고    scopus 로고
    • SCIEAS 0036-8075 10.1126/science.282.5394.1660
    • G. A. Prinz, Science SCIEAS 0036-8075 10.1126/science.282.5394.1660 282, 1660 (1998).
    • (1998) Science , vol.282 , pp. 1660
    • Prinz, G.A.1
  • 3
    • 2942610744 scopus 로고    scopus 로고
    • RMPHAT 0034-6861 10.1103/RevModPhys.76.323
    • I. Zutic, J. Fabian, and S. Das Sarma, Rev. Mod. Phys. RMPHAT 0034-6861 10.1103/RevModPhys.76.323 76, 323 (2004).
    • (2004) Rev. Mod. Phys. , vol.76 , pp. 323
    • Zutic, I.1    Fabian, J.2    Das Sarma, S.3
  • 4
    • 0141749837 scopus 로고    scopus 로고
    • PLRAAN 1050-2947 10.1103/PhysRevA.57.120
    • D. Loss and D. P. DiVincenzo, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.57.120 57, 120 (1998).
    • (1998) Phys. Rev. a , vol.57 , pp. 120
    • Loss, D.1    Divincenzo, D.P.2
  • 7
    • 4243684004 scopus 로고    scopus 로고
    • PRLTAO 0031-9007 10.1103/PhysRevLett.85.1962
    • P. Recher, E. V. Sukhorukov, and D. Loss, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.85.1962 85, 1962 (2000).
    • (2000) Phys. Rev. Lett. , vol.85 , pp. 1962
    • Recher, P.1    Sukhorukov, E.V.2    Loss, D.3
  • 8
    • 2342429683 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.69.121302
    • Y. Zhu, T. H. Lin, and Q. F. Sun, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.69.121302 69, 121302 (R) (2004).
    • (2004) Phys. Rev. B , vol.69 , pp. 121302
    • Zhu, Y.1    Lin, T.H.2    Sun, Q.F.3
  • 10
  • 11
    • 0037438610 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.67.041307
    • R. Ionicioiu and I. D'Amico, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.67.041307 67, 041307 (R) (2003).
    • (2003) Phys. Rev. B , vol.67 , pp. 041307
    • Ionicioiu, R.1    D'Amico, I.2
  • 12
    • 42749106865 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.69.235310
    • D. Frustaglia and K. Richter, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.69.235310 69, 235310 (2004);
    • (2004) Phys. Rev. B , vol.69 , pp. 235310
    • Frustaglia, D.1    Richter, K.2
  • 13
  • 14
    • 28644444053 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.71.155321
    • Q. F. Sun and X. C. Xie, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.71.155321 71, 155321 (2005).
    • (2005) Phys. Rev. B , vol.71 , pp. 155321
    • Sun, Q.F.1    Xie, X.C.2
  • 15
    • 0000981492 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.59.12514
    • A. Voskoboynikov, S. S. Liu, and C. P. Lee, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.59.12514 59, 12514 (1999).
    • (1999) Phys. Rev. B , vol.59 , pp. 12514
    • Voskoboynikov, A.1    Liu, S.S.2    Lee, C.P.3
  • 17
    • 28244495508 scopus 로고    scopus 로고
    • EULEEJ 0295-5075 10.1209/epl/i2005-10266-0
    • G. Usaj and C. A. Balseiro, Europhys. Lett. EULEEJ 0295-5075 10.1209/epl/i2005-10266-0 72, 631 (2005).
    • (2005) Europhys. Lett. , vol.72 , pp. 631
    • Usaj, G.1    Balseiro, C.A.2
  • 18
    • 4243471288 scopus 로고    scopus 로고
    • PRLTAO 0031-9007 10.1103/PhysRevLett.83.1834
    • J. E. Hirsch, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.83. 1834 83, 1834 (1999).
    • (1999) Phys. Rev. Lett. , vol.83 , pp. 1834
    • Hirsch, J.E.1
  • 19
    • 0042972936 scopus 로고    scopus 로고
    • SCIEAS 0036-8075 10.1126/science.1087128
    • S. Murakami, N. Nagaosa, and S.-C. Zhang, Science SCIEAS 0036-8075 10.1126/science.1087128 301, 1348 (2003);
    • (2003) Science , vol.301 , pp. 1348
    • Murakami, S.1    Nagaosa, N.2    Zhang, S.-C.3
  • 24
    • 33144478128 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.73.033314
    • J. Yao and Z. Q. Yang, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.73. 033314 73, 033314 (2006);
    • (2006) Phys. Rev. B , vol.73 , pp. 033314
    • Yao, J.1    Yang, Z.Q.2
  • 25
    • 33144477555 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.73.033316
    • J. Wang, K. S. Chan, and D. Y. Xing, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.73.033316 73, 033316 (2006).
    • (2006) Phys. Rev. B , vol.73 , pp. 033316
    • Wang, J.1    Chan, K.S.2    Xing, D.Y.3
  • 28
    • 0012396897 scopus 로고
    • JPSOAW 0022-3719 10.1088/0022-3719/17/33/015
    • Y. A. Bychkov and E. I. Rashba, J. Phys. C JPSOAW 0022-3719 10.1088/0022-3719/17/33/015 17, 6039 (1984).
    • (1984) J. Phys. C , vol.17 , pp. 6039
    • Bychkov, Y.A.1    Rashba, E.I.2
  • 29
    • 42749103022 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.69.205312
    • D. K. Wang, Q.-F. Sun, and H. Guo, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.69.205312 69, 205312 (2004).
    • (2004) Phys. Rev. B , vol.69 , pp. 205312
    • Wang, D.K.1    Sun, Q.-F.2    Guo, H.3
  • 30
    • 29744447039 scopus 로고    scopus 로고
    • In a typical experiment, the whole ring (including the bridge arm) contains the Rashba SO interaction. However, our results still survive even in this case. The spin accumulation appears in the QD as soon as there is a spin-dependent phase difference for an electron traveling the QD and the bridge arm. Also notice that when the whole ring contains the SO interaction, the spin precession (or the spin-dependent phase) is related to the particular shape of the ring, e.g., see PRBMDO 0163-1829 10.1103/PhysRevB.72.113310
    • In a typical experiment, the whole ring (including the bridge arm) contains the Rashba SO interaction. However, our results still survive even in this case. The spin accumulation appears in the QD as soon as there is a spin-dependent phase difference for an electron traveling the QD and the bridge arm. Also notice that when the whole ring contains the SO interaction, the spin precession (or the spin-dependent phase) is related to the particular shape of the ring, e.g., see D. Bercioux, D. Frustaglia, and M. Governale, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.72.113310 72, 113310 (2005).
    • (2005) Phys. Rev. B , vol.72 , pp. 113310
    • Bercioux, D.1    Frustaglia, D.2    Governale, M.3
  • 31
    • 1942449168 scopus 로고
    • APPLAB 0003-6951 10.1063/1.102730
    • S. Datta and B. Das, Appl. Phys. Lett. APPLAB 0003-6951 10.1063/1.102730 56, 665 (1990).
    • (1990) Appl. Phys. Lett. , vol.56 , pp. 665
    • Datta, S.1    Das, B.2
  • 32
    • 28644452448 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.71.165310
    • Q. F. Sun, J. Wang, and H. Guo, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.71.165310 71, 165310 (2005).
    • (2005) Phys. Rev. B , vol.71 , pp. 165310
    • Sun, Q.F.1    Wang, J.2    Guo, H.3
  • 33
    • 0035963064 scopus 로고    scopus 로고
    • In fact, from the Hamiltonian 3, the effective coupling between the QD and the left lead is tLd + tLR gRr tRd eiσφ, then Eq. 1 can be obtained straightforwardly, e.g., see PRLTAO 0031-9007 10.1103/PhysRevLett.86. 5128
    • In fact, from the Hamiltonian 3, the effective coupling between the QD and the left lead is tLd + tLR gRr tRd eiσφ, then Eq. 1 can be obtained straightforwardly, e.g., see B. R. Bulka and P. Stefanski, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.86.5128 86, 5128 (2001).
    • (2001) Phys. Rev. Lett. , vol.86 , pp. 5128
    • Bulka, B.R.1    Stefanski, P.2
  • 34
    • 4243411068 scopus 로고
    • When U≠0 and with a nonzero bias, this system is not exactly solvable, one has to make approximations. The present method of solving the Green function G dσσ r is equivalent to neglecting the higher-order self-energy terms. This approximation is much better than the Hartree-Fork approximation. When the coupling between the quantum dot and the leads is weak or when the system is not in the Kondo regime, this is a good approximation, e.g., see, PRLTAO 0031-9007 10.1103/PhysRevLett.66.1082
    • When U≠0 and with a nonzero bias, this system is not exactly solvable, one has to make approximations. The present method of solving the Green function G dσσ r is equivalent to neglecting the higher-order self-energy terms. This approximation is much better than the Hartree-Fork approximation. When the coupling between the quantum dot and the leads is weak or when the system is not in the Kondo regime, this is a good approximation, e.g., see, A. Groshev, T. Ivanov, and V. Valtchinov, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.66.1082 66, 1082 (1991).
    • (1991) Phys. Rev. Lett. , vol.66 , pp. 1082
    • Groshev, A.1    Ivanov, T.2    Valtchinov, V.3
  • 36
    • 33744734422 scopus 로고    scopus 로고
    • cond-mat/0504743 (unpublished).
    • T. Koga, Y. Sekine, and J. Nitta, cond-mat/0504743 (unpublished).
    • Koga, T.1    Sekine, Y.2    Nitta, J.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.