I. Rashba, Theory of electrical spin injection: Tunnel contacts as a solution of the conductivity mismatch problem, Physical Review B, vol.62, issue.24, p.16267, 2000.
DOI : 10.1103/PhysRevB.62.R16267

S. Moodera, T. S. Santos, and T. Nagahama, The phenomena of spin-filter tunnelling, Journal of Physics: Condensed Matter, vol.19, issue.16, p.165202, 2007.
DOI : 10.1088/0953-8984/19/16/165202

I. Mazin, How to Define and Calculate the Degree of Spin Polarization in Ferromagnets, Physical Review Letters, vol.83, issue.7, p.1427, 1999.
DOI : 10.1103/PhysRevLett.83.1427

Y. Tsymbal and D. G. Pettifor, Modelling of spin-polarized electron tunnelling from 3d ferromagnets, Journal of Physics: Condensed Matter, vol.9, issue.30, p.411, 1997.
DOI : 10.1088/0953-8984/9/30/002

S. Moodera, R. Meservey, and X. Hao, Variation of the electron-spin polarization in EuSe tunnel junctions from zero to near 100% in a magnetic field, Physical Review Letters, vol.70, issue.6, p.853, 1993.
DOI : 10.1103/PhysRevLett.70.853

S. Moodera, X. Hao, G. A. Gibson, and R. Meservey, Electron-Spin Polarization in Tunnel Junctions in Zero Applied Field with Ferromagnetic EuS Barriers, Physical Review Letters, vol.61, issue.5, p.637, 1988.
DOI : 10.1103/PhysRevLett.61.637

S. Santos and J. S. Moodera, tunnel barrier, Physical Review B, vol.69, issue.24, p.241203, 2004.
DOI : 10.1103/PhysRevB.69.241203

M. Gajek, A. Bibes, K. Barthélémy, S. Bouzehouane, M. Fusil et al., tunnel barriers, Physical Review B, vol.72, issue.2, p.20406, 2005.
DOI : 10.1103/PhysRevB.72.020406

M. Lüders, K. Bibes, E. Bouzehouane, J. Jacquet, S. Contour et al., Spin filtering through ferrimagnetic NiFe2O4 tunnel barriers, Applied Physics Letters, vol.88, issue.8, p.82505, 2006.
DOI : 10.1063/1.2172647

G. Chapline and S. X. Wang, magnetic tunnel barrier, Physical Review B, vol.74, issue.1, p.14418, 2006.
DOI : 10.1103/PhysRevB.74.014418

V. Ramos, M. Guittet, J. Moussy, R. Mattana, C. Deranlot et al., Room temperature spin filtering in epitaxial cobalt-ferrite tunnel barriers, Applied Physics Letters, vol.91, issue.12, p.122107, 2007.
DOI : 10.1063/1.2787880

V. Ramos, T. S. Santos, G. X. Miao, M. Guittet, J. Moussy et al., and the resultant spin polarization, Physical Review B, vol.78, issue.18, p.180402, 2008.
DOI : 10.1103/PhysRevB.78.180402

K. Takahashi, S. Kasai, T. Furubayashi, S. Mitani, K. Inomata et al., High spin-filter efficiency in a Co ferrite fabricated by a thermal oxidation, Applied Physics Letters, vol.96, issue.7, p.72512, 2010.
DOI : 10.1063/1.3318297

F. Rigato, S. Piano, M. Foerster, F. Giubileo, A. M. Cucolo et al., spin filters, Physical Review B, vol.81, issue.17, p.174415, 2010.
DOI : 10.1103/PhysRevB.81.174415

J. Matzen, R. Moussy, K. Mattana, C. Bouzehouane, F. Deranlot et al., Nanomagnetism of cobalt ferrite-based spin filters probed by spin-polarized tunneling, Applied Physics Letters, vol.101, issue.4, p.42409, 2012.
DOI : 10.1063/1.4738790

W. M. Szotek, D. Temmerman, A. Kodderitzsch, L. Svane, H. Petit et al., Electronic structures of normal and inverse spinel ferrites from first principles, Physical Review B, vol.74, issue.17, p.174431, 2006.
DOI : 10.1103/PhysRevB.74.174431

J. Matzen, R. Moussy, K. Mattana, C. Bouzehouane, F. Deranlot et al., (111) ultrathin layers for room-temperature spin filtering, Ph. Sainctavit, C. Gatel, B. Warot-Fonrose, and Y. Zheng, p.184402, 2011.
DOI : 10.1103/PhysRevB.83.184402
URL : https://hal.archives-ouvertes.fr/hal-01240948

P. M. Meservey and . Tedrow, Spin-polarized electron tunneling, Physics Reports, vol.238, issue.4, p.173, 1994.
DOI : 10.1016/0370-1573(94)90105-8

M. D. Teresa, A. Barthélémy, A. Fert, J. Contour, F. Montaigne et al., Role of Metal-Oxide Interface in Determining the Spin Polarization of Magnetic Tunnel Junctions, Science, vol.286, issue.5439, p.507, 1999.
DOI : 10.1126/science.286.5439.507

M. Lüders, S. Bibes, K. Fusil, E. Bouzehouane, C. B. Jacquet et al., Bias dependence of tunnel magnetoresistance in spin filtering tunnel junctions: Experiment and theory, Physical Review B, vol.76, issue.13, p.134412, 2007.
DOI : 10.1103/PhysRevB.76.134412

D. F. Foerster, F. Gutierrez, J. M. Rigato, F. Rebled, J. Peiro et al., Nontunnel transport through CoFe2O4 nanometric barriers, Applied Physics Letters, vol.97, issue.24, p.242508, 2010.
DOI : 10.1063/1.3527921

D. F. Foerster, J. M. Gutierrez, E. Rebled, F. Arbelo, M. Rigato et al., thin films investigated by conducting atomic force microscopy, Journal of Applied Physics, vol.111, issue.1, p.13904, 2012.
DOI : 10.1063/1.3672839

J. Matzen, R. Moussy, F. Mattana, C. Petroff, B. Gatel et al., (001) ultrathin films, Applied Physics Letters, vol.99, issue.5, p.52514, 2011.
DOI : 10.1063/1.3622307