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Chin. Phys. B, 2011, Vol. 20(5): 057303    DOI: 10.1088/1674-1056/20/5/057303
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Negative tunnelling magnetoresistance in spin filtering magnetic junctions with spin–orbit coupling

Li Yun(李云)
Department of Materials Science and Engineering, Yunnan University, Kunming 650091, China; Department of Chemistry, Seoul National University, Seoul 151-747, Republic of Korea Department of Chemistry, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea
Abstract  We present theoretical calculations of spin transport in spin filtering magnetic tunnelling junctions based on the Landauer–Büttiker formalism and taking into account the spin–orbit coupling (SOC). It is shown that spin-flip scattering induced by SOC is stronger in parallel alignment of magnetization of the ferromegnet barrier (FB) and the ferromagnetic electrode than that in antiparallel case. The increase of negative tunnelling magnetoresistance with bias is in agreement with recent experimental observation.
Keywords:  tunnelling magnetoresistance      spin filtering barrier      magnetic tunnelling junctions      spin–orbit coupling  
Received:  28 April 2010      Revised:  27 December 2010      Accepted manuscript online: 
PACS:  73.40.Gk (Tunneling)  
  73.40.-c (Electronic transport in interface structures)  
  75.70.Cn (Magnetic properties of interfaces (multilayers, superlattices, heterostructures))  
  72.15.Gd (Galvanomagnetic and other magnetotransport effects)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10564004) and Korea Research Foundation (Grant No. KRF-2005-070-C00065).

Cite this article: 

Li Yun(李云) Negative tunnelling magnetoresistance in spin filtering magnetic junctions with spin–orbit coupling 2011 Chin. Phys. B 20 057303

[1] Miyazaki T and Tezuka N 1995 J. Magn. Magn. Mater. 139 L231
[2] Moodera J S, Kinder L R, Wong T M and Meservey R 1995 Phys. Rev. Lett. 74 3273
[3] vZuti'c I, Fabian J and Sarma S D 2004 Rev. Mod. Phys. 76 323
[4] Prinz G A 1998 Science 282 1660 %Montaigne F, Seneor P and Vaur`es A 1999 Phys. Rev. Lett. 82 4288
[6] de Teresa J M, Barth'el'emy A, Fert A, Contour J P, Montaigne F and Seneor P 1999 Science 286 507
[7] Fiederling R, Keim M, Reuscher G, Ossau W, Schmidt G, Waag A and Molenkamp L W 1999 Nature 402 787
[8] Ohno Y, Young D K, Beschoten B, Matsukura F, Ohno H and Awschalom D D 1999 Nature 402 790
[9] Schmidt G, Ferrand D, Molenkamp L W, Filip A T and van Wees B J 2000 Phys. Rev. B 62 R4790
[10] Jonker B T, Park Y D, Bennett B R, Cheong H D, Kioseoglou G and Petrou A 2000 Phys. Rev. B 62 8180
[11] Zhu H J, Ramsteiner M, Kostial H, Wassermeier M, Schonherr H P and Ploog K H 2001 Phys. Rev. Lett. 87 016601
[12] LeClair P, Ha J K, Swagten H J M, Kohlhepp J T, van de Vin C H and de Jonge W J M 2002 Appl. Phys. Lett. 80 625
[13] Naghama T, Santos T S and Moodera J S 2007 Phys. Rev. Lett. 99 016602
[14] Moodera J S, Hao X, Gibson G A and Meservey R 1988 Phys. Rev. Lett. 61 637
[15] Moodera J S, Meservey R and Hao X 1993 Phys. Rev. Lett. 70 853
[16] Santos T S and Moodera J S 2004 Phys. Rev. B 69 241203(R)
[17] Worledge D C and Geballe T H 2000 J. Appl. Phys. 88 5277
[18] Miao G X, M"uller M and Moodera J S 2009 Phys. Rev. Lett. 102 076601
[19] Rashba E I 2000 Phys. Rev. B 62 R16267
[20] Davydov A S 1965 Quantunm Mechanics (Oxford: Pergamon Press)
[21] Li Y and Chang C R 2004 J. Magn. Magn. Mater. 277 344
[22] Popescu V, Ebert H, Papanikolaou N, Zeller R and Dederichs P H 2005 Phys. Rev. B 72 184427
[23] Gould C, R"uster C, Jungwirth T, Girgis E, Schott G M, Giraud R, Brunner K, Schmidt G and Molenkamp L W 2004 Phys. Rev. Lett. 93 117203
[24] Ferry D K and Goodnick S M 1997 Transport in Nanostructures (Cambridge: Cambridge University Press)
[25] Tsymbal E Y, Belashchenko K D, Velev J P, Jaswal S S, van Schilfgaarde M, Oleynik I I and Stewart D A 2005 condmat/0511663
[26] Li Y and Lee E K 2007 J. Nanosci. Nanotechnol. 7 4143
[27] Saffarzadeh A 2004 J. Magn. Magn. Mater. 269 327
[28] Papaconstantopoulos D A 1986 Handbook of the Band Structure of Elemental Solids (New York: Plenum)
[29] Sanvito S, Lambert C J, Jefferson J H and Bratkovsky A M 1999 Phys. Rev. B 59 11936
[30] Li Y and Chang C R 2001 Phys. Lett. A 287 415
[31] Heiliger C, Zahn P, Yavorsky B Yu and Mertig I 2005 Phys. Rev. B 72 180406(R) endfootnotesize
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