Spin-resolved photoelectron spectroscopy of the MgO/Fe(110) system


The surface structure and electronic properties of ultrathin MgO layers grown on epitaxial Fe(110) films were investigated at room temperature by means of electron diffraction, Auger electron spectroscopy, scanning tunneling microscopy, and spin-resolved photoelectron spectroscopy. The spin polarization at the Fermi level (EF) of the Fe(110) film decreases sharply with increasing thickness of the MgO layer. This behavior arises from the formation of a thin FeO layer at the MgO(111)/Fe(110) interface, as revealed by structural and spectroscopic investigations. The strong attenuation of the intrinsic spin polarization is qualitatively attributed to the scattering of spin-polarized electrons at the unoccupied d-orbitals of Fe2+.

This is a preview of subscription content, log in to check access.


  1. 1.

    Moodera JS, Kinder LR, Wong TM, Merservey R (1995) Phys. Rev. Lett. 74:3273

    Article  PubMed  ADS  Google Scholar 

  2. 2.

    Miyazaki T, Tezuka N (1995) J. Magn. Magn. Mater. 139:L231

    ADS  Google Scholar 

  3. 3.

    Yuasa S, Fukushima A, Nagahama T, Ando K, Suzuki Y (2004) Jap. J. Appl. Phys. 43:L588

    Article  ADS  Google Scholar 

  4. 4.

    Parkin SSP, Kaiser C, Panchula A, Rice PM, Hughes B, Samant M, Yang S-H (2004) Nature Materials 3:862

    Article  ADS  Google Scholar 

  5. 5.

    Yuasa S, Nagahama T, Fukushima A, Suzuki Y, Ando K (2004) Nature Materials 3:868

    Article  ADS  Google Scholar 

  6. 6.

    Gallagher WJ, Parkin SSP, Lu Y, Bian XP, Marley A, Roche KP, Altman RA, Rishton SA, Jahnes C, Shaw TM, Xiao G (1997) J. Appl. Phys. 81:3741

    Article  ADS  Google Scholar 

  7. 7.

    Parkin SSP, Roche KP, Samant MG, Rice PM, Beyers RB, Scheuerlein RE, O’Sullivan EJ, Brown SL, Bucchigano J, Abraham DW, Lu Y, Rooks M, Trouilloud PL, Wanner RA, Gallagher WJ (1999) J. Appl. Phys. 85:5828

    Article  ADS  Google Scholar 

  8. 8.

    Boeve H, De Boeck J, Borghs G (2001) J. Appl. Phys. 89:482

    Article  ADS  Google Scholar 

  9. 9.

    Jullière M (1975) Phys. Lett. A 54:225

    Article  ADS  Google Scholar 

  10. 10.

    MacLaren JM, Zhang XG, Butler WH, Wang X (1999) Phys. Rev. B 59:5470

    Article  ADS  Google Scholar 

  11. 11.

    Mavropoulos P, Papanikolaou N, Dederichs PH (2000) Phys. Rev. Lett. 85:1088

    Article  PubMed  ADS  Google Scholar 

  12. 12.

    Oleinik II, Tsymbal EY, Pettifor DG (2000) Phys. Rev. B 62:3952

    Article  ADS  Google Scholar 

  13. 13.

    Butler WH, Zhang XG, Schulthess TC, MacLaren JM (2001) Phys. Rev. B 63:054416

    Article  ADS  Google Scholar 

  14. 14.

    Bowen M, Cros V, Petroff F, Fert A, Martínez Boubeta C, Costa-Krämer JL, Anguita JV, Cebollada A, Briones F, de Teresa JM, Morellón L, Ibarra MR, Güell F, Peiró F, Cornet A (2001) Appl. Phys. Lett. 79:1655

    Article  ADS  Google Scholar 

  15. 15.

    Faure-Vincent J, Tiusan C, Jouguelet E, Canet F, Sajieddine M, Bellourad C, Popova E, Hehn M, Montaigne F, Schuhl A (2003) Appl. Phys. Lett. 83:4507

    Article  ADS  Google Scholar 

  16. 16.

    Zhang X, Butler WH, Bandyopadhyay A (2003) Phys. Rev. B 68:092402

    Article  ADS  Google Scholar 

  17. 17.

    Meyerheim HL, Popescu R, Kirschner J, Jedrecy N, Sauvage-Simkin M, Pinchaux R (2001) Phys. Rev. Lett. 87:076102

    Article  PubMed  ADS  Google Scholar 

  18. 18.

    Meyerheim HL, Popescu R, Jedrecy N, Vedpathak M, Sauvage-Simkin M, Pinchaux R, Heinrich B, Kirschner J (2002) Phys. Rev. B 65:144433

    Article  ADS  Google Scholar 

  19. 19.

    Oh H, Lee SB, Seo J, Min HG, Kim J-S (2003) Appl. Phys. Lett. 82:361

    Article  ADS  Google Scholar 

  20. 20.

    Purnell SK, Xu X, Goodman DW, Gates BC (1994) J. Phys. Chem. 98:4076

    Article  Google Scholar 

  21. 21.

    Magkoev TT, Vladimirov GG, Remar D, Moutinho AMC (2002) Solid State Commun. 122:341

    Article  ADS  Google Scholar 

  22. 22.

    Raue R, Hopster H, Kisker E (1984) Rev. Sci. Instrum. 55:383

    Article  ADS  Google Scholar 

  23. 23.

    Kurzawa R, Kämper K-P, Schmitt W, Güntherodt G (1986) Solid State Commun. 60:777

    Article  ADS  Google Scholar 

  24. 24.

    Vassent JL, Dynna M, Marty A, Gilles B, Patrat G (1996) J. Appl. Phys. 80:5727

    Article  ADS  Google Scholar 

  25. 25.

    Kiguchi M, Goto T, Saiki K, Sasaki T, Iwasawa Y, Koma A (2002) Surf. Sci. 512:97

    Article  ADS  Google Scholar 

  26. 26.

    Hathaway KB, Jansen HJF, Freeman AJ (1985) Phys. Rev. B. 31:7603

    Article  ADS  Google Scholar 

  27. 27.

    Rampe A, Güntherodt G, Hartmann D, Henk J, Scheunemann T, Feder R (1998) Phys. Rev. B. 57:14370

    Article  ADS  Google Scholar 

  28. 28.

    Klaua M, Ullmann D, Barthel J, Wulfhekel W, Kirschner J, Urban R, Monchesky TL, Enders A, Cochran JF, Heinrich B (2001) Phys. Rev. B. 64:134411

    Article  ADS  Google Scholar 

  29. 29.

    Meier F, Bona GL, Hüfner S (1984) Phys. Rev. Lett. 52:1152

    Article  ADS  Google Scholar 

Download references

Author information



Corresponding author

Correspondence to Y.S. Dedkov.

Additional information


68.35.-p; 68.55.-a; 73.20.r; 75.70.Cn; 79.60.-I

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Dedkov, Y., Fonin, M., Rüdiger, U. et al. Spin-resolved photoelectron spectroscopy of the MgO/Fe(110) system. Appl. Phys. A 82, 489–493 (2006). https://doi.org/10.1007/s00339-005-3447-2

Download citation


  • Scanning Tunneling Microscopy
  • Spin Polarization
  • Auger Electron Spectroscopy
  • Scanning Tunneling Microscopy Image
  • Valence Band Edge