Direct observation of a highly spin-polarized organic spinterface at room temperature

Scientific Reports

Volumn 3, Issue , 2013, Pages

  Djeghloul, F ^a   Ibrahim, F ^a   Cantoni, M ^b   Bowen, M ^a   Joly, L ^a,c   Boukari, S ^a   Ohresser, P ^d   Bertran, F ^d   Le Fevre P ^d   Thakur, P ^e   Scheurer, F ^a   Miyamachi, T ^f   Mattana, R ^g,h   Seneor, P ^g,h   Jaafar, A ^a   Rinaldi, C ^b   Javaid, S ^a   Arabski, J ^a   Kappler, J P ^a   Wulfhekel, W ^f   Brookes, N B ^e   Bertacco, R ^b   Taleb Ibrahimi, A ^d   Alouani, M ^a   Beaurepaire, E ^a   Weber, W ^a   more..

^a INSTITUT DE PHYSIQUE ET CHIMIE DES MATÉRIAUX DE STRASBOURG   (France)

^b POLITECNICO DI MILANO   (Italy)

^c PAUL SCHERRER INSTITUTE   (Switzerland)

^d SYNCHROTRON SOLEIL   (France)

^e EUROPEAN SYNCHROTRON RADIATION FACILITY   (France)

^f KARLSRUHE INSTITUTE OF TECHNOLOGY   (Germany)

^g CNRS   (France)

^h UNIVERSITÉ PARIS SACLAY   (France)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84874306531     PISSN: None     EISSN: 20452322     Source Type: Journal    
DOI: 10.1038/srep01272     Document Type: Article

References (39)

1. Dediu, V. A., Hueso, L. E., Bergenti, I. & Taliani, C. Spin routes in organic semiconductors. Nature Mater. 8, 707-716 (2009).
2. Cinchetti, M. et al. Determination of spin injection and transport in a ferromagnet/organic semiconductor heterojunction by two-photon photoemission. Nature Mater. 8, 115-119 (2009).
3. Xiong, Z. H., Wu, D., Vardeny, Z. V. & Shi, J. Giant magnetoresistance in organic spin-valves. Nature 427, 821-824 (2004).
4. Schmaus, S. et al. Giant magnetoresistance through a single molecule. Nature Nanotech. 6, 185-189 (2011).
5. Barraud, C. et al. Unravelling the role of the interface for spin injection into organic semiconductors. Nature Phys. 6, 615-620 (2010).
6. Takács, A. F. et al. Electron transport through single phthalocyanine molecules studied using scanning tunneling microscopy. Phys. Rev. B. 78, 233404 (2008).
7. Javaid, S. et al. Impact on Interface Spin Polarization of Molecular Bonding to Metallic Surfaces. Phys. Rev. Lett. 105, 077201 (2010).
8. Sanvito, S. Molecular spintronics: The rise of spinterface science. Nature Phys. 6, 562-564 (2010).
9. Lach, S. et al. Metal-Organic Hybrid Interface States of A Ferromagnet/Organic Semiconductor Hybrid Junction as Basis For Engineering Spin Injection in Organic Spintronics. Adv. Funct. Mater. 22, 989-997 (2012).
10. Methfessel, T. et al. Spin scattering and spin-polarized hybrid interface states at a metal-organic interface. Phys. Rev. B. 84, 224403 (2011).
11. Santos, T. S. et al. Room-Temperature Tunnel Magnetoresistance and Spin-Polarized Tunneling through an Organic Semiconductor Barrier. Phys. Rev. Lett. 98, 016601 (2007).
12. Bowen, M. et al. Spin-polarized tunneling spectroscopy in tunnel junctions with half-metallic electrodes. Phys. Rev. Lett. 95, 137203(2005).
13. Yeh, J. J. & Lindau, I. Atomic subshell photoionization cross sections and asymmetry Parameters: 1, Z, 103. At. Data. & Nucl. Data Tables 32, 1-155 (1985).
14. Stearns, M. B. Simple explanation of tunneling spin-polarization of Fe, Co, Ni and its alloys. J. Magn. Magn. Mater. 5, 167 (1977).
15. Bowen, M. et al. Half-metallicity proven using fully spin-polarised tunnelling. J. Phys. Condens. Matter 17, L407-L409 (2005).
16. Bowen, M. et al. Using half-metallic manganite interfaces to reveal insights into spintronics. J. Phys. Condens. Matter. 19, 315208 (2007).
17. Wende, H. et al. Substrate-induced magnetic ordering and switching of iron porphyrin molecules. Nature Mater. 6, 516-520 (2007).
18. Bowen, M. et al. Absence of induced moment in magnetic tunnel junction barriers. Phys. Rev. B. 73, 012405 (2006).
19. Hippert, F. et al. Neutron and X-ray Spectroscopy: X-ray Magnetic Circular Dichroism by Baudelet, F. (Springer, 2005).
20. Park, J.-H. et al. Direct evidence for a half-metallic ferromagnet. Nature 392, 794-796 (1998).
21. 0.5 electrodes fabricated by molecular beam epitaxy. Appl. Phys. Lett. 94, 162504 (2009).
22. Dietl, T. A ten-year perspective on dilute magnetic semiconductors and oxides. Nature Mater. 9, 965-974 (2010)
23. Bowen, M. et al. Large magnetoresistance in FeCo/MgO/Fe(001) epitaxial tunnel junctions on GaAs(001). Appl. Phys. Lett. 79, 1655 (2001).
24. Butler, W. H., Zhang, X.-G., Schulthess, T. C. & MacLaren, J.M., Spin-dependent tunneling conductance ofFejMgOjFe sandwiches. Phys. Rev. B 63, 054416 (2001).
25. Lee, Y. M., Hayakawa, J., Ikeda, S., Matsukura, F. & Ohno, H. Effect of electrode composition on the tunnel magnetoresistance of pseudo-spin-valve magnetic tunnel junction with a MgO tunnel barrier. Appl. Phys. Lett. 90, 212507 (2007).
26. Szulczewski, G., Tokuc, H., Oguz, K. & Coey, J. M. D. Magnetoresistance in magnetic tunnel junctions with an organic barrier and an MgO spin filter. Appl. Phys. Lett. 95, 202506 (2009).
27. Peisert, H. et al. Order on disorder: Copper phthalocyanine thin films on technical substrates. J. Appl. Phys. 90, 466 (2001).
28. Schmidt, G., Ferrand, D. & Molenkamp, L.W. Fundamental obstacle for electrical spin injection from a ferromagnetic metal into a diffusive Semiconductor. Phys. Rev. B. 62, R4790-R4793 (2000).
29. Shiota, Y. T. et al. Induction of coherent magnetization switching in a few atomic layers of FeCo using voltage pulses. Nature Mater. 11, 39 (2012).
30. Miyamachi, T. et al. Robust Spin Crossover and Memristance across a Single Molecule. Nature Commun. 3, 938 (2012).
31. Prezioso, M., et al. A Single-Device Universal Logic Gate Based on a Magnetically Enhanced Memristor, Adv. Mater. in press (2012).
32. Bowen, M. et al. Bias-crafted magnetic tunnel junctions with bi-stable spin-dependent states. Appl. Phys. Lett. 89, 103517(2006).
33. Cantoni, M. & Bertacco, R. High efficiency apparatus for spin polarized inverse photoemission. Rev. Sci. Instrum. 75, 2387 (2004).
34. Kresse, G. & Furthmuller J. Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set. Phys. Rev. B 54, 11169 (1996).
35. Perdew, J. P., Burke, K. & Ernzerhof M. Generalized Gradient Approximation Made Simple. Phys. Rev. Lett. 77, 3865 (1996).
36. Kresse, G. & Joubert, D. From ultrasoft pseudopotentials to the projector augmented-wave method. Phys. Rev. B 59, 1758 (1999).
37. Grimme, S. Semiempirical GGA-type density functional constructed with a long-range dispersion correction. J. Comput. Chem. 27, 1787 (2006).
38. Bucko, T. et al. Improved description of the structure of molecular and layered crystals: Ab initio DFT calculations with van der Waals corrections. J. Phys. Chem. A. 114, 11814 (2010).
39. Chen, X i. & Alouani M. Effect of metallic surfaces on the electronic structure, magnetism, and transport properties of Co-phthalocyanine molecules. Phys. Rev. B 82, 094443 (2010).