Abstract.
We study the spin polarized currents generation in a magnetic (ferromagnetic/ferromagnetic) tunnel junction by means of adiabatic quantum pumping. Using a scattering matrix approach, it is shown that a pure spin current can be pumped from one ferromagnetic lead into the adjacent one by adiabatic modulation of the magnetization and the height of the barrier at the interface in absence of external bias voltage. We numerically study the characteristic features of the pure spin current and discuss its behavior for realistic values of the parameters. We show that the generated pure spin current is robust with respect to the variation of the magnetization strength, a very important feature for a realistic device, and that the proposed device can operate close to the optimal pumping regime. An experimental realization of a pure spin current injector is also discussed.
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References
S.A. Wolf et al., Science 294, 1488 (2001)
G.A. Prinz, Science 282, 1660 (1998)
J.M. Kikkawa, D.D. Awschalom, Nature 397, 139 (1999)
T. Kimura, K. Kuroki, H. Aoki, Phys. Rev. B 53, 9572 (1996)
Y. Tserkovnyak, A. Brataas, G.E.W. Bauer, Phys. Rev. B 66, 224403 (2002)
B. Wang, J. Wang, H. Guo, Phys. Rev. B 67, 92408 (2003)
A.G. Mal'shukov, C.S. Tang, C.S. Chu, K.A. Chao, Phys. Rev. B 68, 233307 (2003)
T. Aono, Phys. Rev. B 67, 155303 (2003)
J. Wu, B. Wang, J. Wang, Phys. Rev. B 66, 205327 (2002)
M. Governale, F. Taddei, R. Fazio, Phys. Rev. B 68, 155324 (2003)
E.R. Mucciolo, C. Chamon, C.M. Marcus, Phys. Rev. Lett. 89, 146802 (2002)
Z. Chen, B. Wang, D.Y. Xing, J. Wang, Appl. Phys. Lett. 85, 2553 (2004)
J.S. Moodera et al. Phys. Rev. Lett. 74, 3273 (1995)
J.E. Hirsch, Phys. Rev. Lett. 83, 1834 (1999)
Q.-f. Sun, H. Guo, J. Wang, Phys. Rev. Lett. 90, 258301 (2003)
S. Murakami, N. Nagaosa, S.-C. Zhang, Science 301, 1348 (2003)
B.-G. Wang, J. Wang, H. Guo, Phys. Rev. B 67, 092408 (2003)
A. Brataas, Y. Tserkovnyak, G.E.W. Bauer, B.I. Halperin, Phys. Rev. B 66, 060404R (2002)
P. Zhang, Q.-K. Xue, X.C. Xie, Phys. Rev. Lett. 91, 196602 (2003)
W. Long, Q.-F. Sun, H. Guo, J. Wang, Appl. Phys. Lett. 83, 1937 (2003).
F.J. Jedema et al., Nature 410, 345 (2001)
A.T. Hanbicki et al., Appl. Phys. Lett. 82, 4092 (2003)
I. Zutic, J. Fabian, S. Das Sharma, Rev. Mod. Phys. 76, 323 (2004)
G. Schmidt, D. Ferrand, L.W. Molenkamp, A.T. Filip, B.J. van Wees, Phys. Rev. B 62, R4790 (2000)
Y.K. Kato et al., Science 306, 1910 (2004)
J. Wunderlich et al., Phys. Rev. Lett. 94, 047204 (2005)
J. Hübner et al., Phys. Rev. Lett. 90, 216601 (2003)
M.J. Stevens et al., Phys. Rev. Lett. 90, 136603 (2003)
R.D.R. Bhat et al., Phys. Rev. Lett. 94, 096603 (2005)
E.Ya. Sherman, A. Najmaie, J.E. Sipe, Appl. Phys. Lett. 86, 122103 (2005)
S.D. Ganichev, W. Prettl, J. Phys. Cond. Matter 15, R935 (2003)
S.K. Watson, R.M. Potok, C.M. Marcus, V. Umansky, Phys. Rev. Lett. 91, 258301 (2003)
P. Sharma, C. Chamon, Phys. Rev. Lett. 87, 96401 (2001)
R. Citro, N. Andrei, Q. Niu, Phys. Rev. B 68, 165312 (2003)
C. Bena, L. Balents, Phys. Rev. B 70, 245318 (2004)
R. Shindou, e-print arXiv:cond-mat/0312668
R. Benjamin, C. Benjamin, Phys. Rev. B 69, 085318 (2003)
M. Blaauboer, C.M.L. Fricot, Phys. Rev. B 71, 041303(R) (2005)
Y. Xing et al., Phys. Rev. B 70, 245324 (2004)
M. Yang, S.S. Li, Phys. Rev. B 70, 195341 (2004)
A. Brataas, Y. Tserkovnyak, Phys. Rev. Lett. 93, 087201 (2004)
P. Leek, M. Buitelaar, V. Talyanskii, C. Smith, D. Anderson, G. Jones, J. Wei, D. Cobden, e-print cond-mat/0508145
Y. Wei, J. Wang, H. Guo, C. Roland, Phys. Rev. B 64, 115321 (2001).
C. Benjamin, R. Citro, Phys. Rev. B 72, 085340 (2005)
Z.K. Keane, L.H. Yu, D. Natelson, e-print cond-mat/0510094
J.F. Gregg, I. Petej, C. Dennis, J. Phys. D: Appl. Phys. 35, R121-R155 (2002)
C.W.J. Beenakker, Rev. Mod. Phys. 69, 731 (1997)
P.W. Brouwer, Phys. Rev. B 58, R10135 (1998)
B. Altshuler, L. Glazman, Science 283, 1864 (1999)
T. Christen, M. Buttiker, Europhys. Lett. 35, 523 (1996)
B. Wang, J. Wang, H. Guo, Phys. Rev. B 67, 92408 (2003)
J.E. Avron, A. Elgart, G.M. Graf, L. Sadun, Phys. Rev. Lett. 87, 236601 (2001)
M. Moskalets, M. Büttiker, Phys. Rev. B 66, 35306 (2002)
B. Wang, J. Wang, Phys. Rev. B 66, 125310 (2002)
A. Villares Ferrer, P.F. Farinas, A.O. Caldeira, Phil. Mag. 85, No. 20, 2293 (2005)
M. Lu, L. Zhang, Y. Jin, X. Yan, Eur. Phys. J. B 27, 565 (2002)
A. Matulis, F.M. Peeters, P. Vasilopoulos, Phys. Rev. Lett. 72, 1518 (1994); F.M. Peeters, J. De Boeck, in Handbook of Nanostructured Materials and Nanotechnology, edited by H.S. Nalwa (Academic, New York, 2000), p. 345
M. Switkes, C.M. Marcus, K. Campman, A.C. Gossard, Science 283, 1905 (1999); M. Switkes, Ph.D. thesis, Stanford University, (1999)
G. Schmidt, L.W. Molenkamp, A.T. Filip, B.J. van Wees, Phys. Rev. B 62, R4790 (2000)
R. Fiederling, G. Reuscher, W. Ossau, G. Schmidt, A. Waag, L.W. Molenkamp, Nature (London) 402, 787 (2000)
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Romeo, F., Citro, R. Pure spin currents generation in magnetic tunnel junctions by means of adiabatic quantum pumping. Eur. Phys. J. B 50, 483–489 (2006). https://doi.org/10.1140/epjb/e2006-00159-0
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DOI: https://doi.org/10.1140/epjb/e2006-00159-0