L-NESS

Laboratory for Epitaxial Nanostructures on Silicon and Spintronics

Affiliated Institutions

Riccardo Bertacco

Associate professor

Contact

e-mail:
tel:Como: +39 031 332 7309
Milano: +39 02 2399 6066
fax:Como: +39 031 332 7617
address:Politecnico di Milano
Polo di Como
Via Anzani 42
22100 Como
Italy
office:Via Anzani 1.07

Riccardo Bertacco

Main Research Interest

Publications

  1. C. Rinaldi, J. C. Rojas-Sánchez, R. N. Wang, Y. Fu, S. Oyarzun, L. Vila, S. Bertoli, M. Asa, L. Baldrati, M. Cantoni, J.-M. George, R. Calarco, A. Fert, and R. Bertacco: Evidence for spin to charge conversion in GeTe(111), APL Materials 4, 032501 (2016).
  2. M. Monticelli, A. Torti, M. Cantoni, D. Petti, E. Albisetti, A. Manzin, E. Guerriero, R. Sordan, G. Gervasoni, M. Carminati, G. Ferrari, M. Sampietro, and R. Bertacco: On-chip magnetic platform for single-particle manipulation with integrated electrical feedback, Small 12, 921 (2016).
  3. M. Monticelli, E. Albisetti, D. Petti, D. V. Conca, M. Falcone, P. P. Sharma, and R. Bertacco: Towards an on-chip platform for the controlled application of forces via magnetic particles: A novel device for mechanobiology, J. Appl. Phys. 117, 17B317 (2015).
  4. C. Rinaldi, M. Cantoni, M. Marangoni, C. Manzoni, G. Cerullo, and R. Bertacco: Wide-range optical spin orientation in Ge from near-infrared to visible light, Phys. Rev. B 90, 161304 (2014).
  5. C. Rinaldi, S. Bertoli, M. Cantoni, C. Manzoni, M. Marangoni, G. Cerullo, M. Bianchi, R. Sordan, and R. Bertacco: Spin-photodiodes for SiGe spin-optoelectronics, Proc. SPIE Spintronics VII 916709, 9167 09 (2014).
  6. G. Radaelli, D. Petti, M. Cantoni, C. Rinaldi, and R. Bertacco: Absence of strain-mediated magnetoelectric coupling at fully epitaxial Fe/BaTiO3 interface (invited), J. Appl. Phys. 115, 172604 (2014).
  7. G. Radaelli, D. Petti, E. Plekhanov, I. Fina, P. Torelli, B. R. Salles, M. Cantoni, C. Rinaldi, D. Gutiérrez, G. Panaccione, M. Varela, S. Picozzi, J. Fontcuberta, and R. Bertacco: Electric control of magnetism at the Fe/BaTiO3 interface, Nature Communications 5, 3404 (2014).
  8. M. Savoini, C. Piovera, C. Rinaldi, E. Albisetti, D. Petti, A. R. Khorsand, L. Duò, C. Dallera, M. Cantoni, R. Bertacco, M. Finazzi, E. Carpene, A. V. Kimel, A. Kirilyuk, and T. Rasing: Bias-controlled ultrafast demagnetization in magnetic tunnel junctions, Phys. Rev. B 89, 140402(R) (2014).
  9. P. Wadley, V. Novák, R. P. Campion, C. Rinaldi, X. Martí, H. Reichlová, J. Železný, J. Gazquez, M. A. Roldan, M. Varela, D. Khalyavin, S. Langridge, D. Kriegner, F. Máca, J. Mašek, R. Bertacco, V. Holý, A. W. Rushforth, K. W. Edmonds, B. L. Gallagher, C. T. Foxon, J. Wunderlich, and T. Jungwirth: Tetragonal phase of epitaxial room-temperature antiferromagnet CuMnAs, Nature Communications 4, 2322 (2013).
  10. F. Djeghloul, F. Ibrahim, M. Cantoni, M. Bowen, L. Joly, S. Boukari, P. Ohresser, F. Bertran, P. Le Fèvre, P. Thakur, F. Scheurer, T. Miyamachi, R. Mattana, P. Seneor, A. Jaafar, C. Rinaldi, S. Javaid, J. Arabski, J.-P. Kappler, W. Wulfhekel, N. B. Brookes, R. Bertacco, A. Taleb-Ibrahimi, M. Alouani, E. Beaurepaire, and W. Weber: Direct observation of a highly spin-polarized organic spinterface at room temperature, Sci. Reports 3, 1272 (2013).
  11. A. Torti, V. Mondiali, A. Cattoni, M. Donolato, E. Albisetti, A. M. Haghiri-Gosnet, P. Vavassori, and R. Bertacco: Single particle demultiplexer based on domain wall conduits, Appl. Phys. Lett. 101, 142405 (2012).
  12. P. Torelli, M. Sperl, R. Ciancio, J. Fujii, C. Rinaldi, M. Cantoni, R. Bertacco, M. Utz, D. Bougeard, M. Soda, E. Carlino, G. Rossi, C. H. Back, and G. Panaccione: Growth of ultrathin epitaxial Fe/MgO spin injector on (0, 0, 1) (Ga, Mn)As, Nanotechnology 23, 465202 (2012).
  13. C. Rinaldi, M. Espahbodi, M. Cantoni, and R. Bertacco: Spin-photodiodes for SiGe spin-optoelectronics, Proc. SPIE Int. Soc. Opt. Eng. 8461, 84611F (2012).
  14. C. Rinaldi, M. Cantoni, D. Petti, A. Sottocorno, M. Leone, N. M. Caffrey, S. Sanvito, and R. Bertacco: Ge-based spin-photodiodes for room-temperature integrated detection of photon helicity, Adv. Mater. 24, 3037 (2012).
  15. C. Rinaldi, M. Cantoni, D. Petti, and R. Bertacco: Epitaxial Fe/MgO/Ge spin-photodiodes for integrated detection of light helicity at room temperature, J. Appl. Phys. 111, 07C312 (2012).
  16. D. Petti, A. Stroppa, S. Picozzi, S. Brivio, M. Cantoni, and R. Bertacco: Effect of Au proximity on the LSMO surface: An ab initio study, J. Magn. Magn. Mater. 324, e963 (2012).
  17. G. Radaelli, S. Brivio, I. Fina, and R. Bertacco: Correlation between growth dynamics and dielectric properties of epitaxial BaTiO3 films, Appl. Phys. Lett. 100, 102904 (2012).
  18. M. Cantoni, R. Bertacco, A. Brambelli, M. Finazzi, L. Duò, F. Ciccacci, A. Verdini, L. Floreano, A. Morgante, M. Passoni, C. S. Casari, and A. Le Bassi: Fe nanoparticles on ZnSe: Reversible temperature dependence of the surface barrier potential, Phys. Rev. B 85, 155456 (2012).
  19. S. Brivio, D. Polli, A. Crespi, R. Osellame, G. Cerullo, and R. Bertacco: Response to “comment on `observation of anomalous acoustic phonon dispersion in SrTiO3 by broadband stimulated Brillouin scattering' ”, Appl. Phys. Lett. 100, 206102 (2012).
  20. R. Bertacco, M. Cantoni, D. Petti, C. Rinaldi, and M.Leone: Dispositivo rilevatore ottico spintronico, Italian Patent 2011 (2011).
  21. R. Ferragut, A. Dupasquier, S. Brivio, R. Bertacco, and W. Egger: Study of defects in an electroresistive Au/La2/3Sr1/3MnO3/SrTiO3(001) heterostructure by positron annihilation, J. Appl. Phys. 110, 053511 (2011).
  22. S. Brivio, D. Polli, A. Crespi, G. Cerullo, and R. Bertacco: Observation of anomalous acoustic phonon dispersion in SrTiO3 by broadband stimulated Brillouin scattering, Appl. Phys. Lett. 98, 211907 (2011).
  23. D. Petti, M. Cantoni, C. Rinaldi, and R. Bertacco: Chemical and electronic properties of Fe/MgO/Ge heterostructures for spin electronics, J. Phys. Condens. Matt. 292, 012010 (2011).
  24. J. Gazquez, M. Varela, D. Petti, M. Cantoni, C. Rinaldi, S. Brivio, and R. Bertacco: Aberration corrected scanning transmission electron microscopy and electron energy loss spectroscopy studies of epitaxial Fe/MgO/(001)Ge heterostructures, J. Mater. Sci. 46, 4157 (2011).
  25. S. Brivio, C. Rinaldi, D. Petti, R. Bertacco, and F. Sanchez: Epitaxial growth of Fe/BaTiO3 heterostructures, Thin Solid Films 519, 5804 (2011).
  26. S. Brivio, D. Petti, R. Bertacco, and J. C. Cezar: Electric field control of magnetic anisotropies and magnetic coercivity in Fe/BaTiO3(001) heterostructures, Appl. Phys. Lett. 98, 092505 (2011).
  27. M. Donolato, E. Sogne, B. T. Dalslet, M. Cantoni, D. Petti, J. Cao, F. Cardoso, S. Cardoso, P. P. Freitas, M. F. Hansen, and R. Bertacco: On-chip measurement of the Brownian relaxation frequency of magnetic beads using magnetic tunneling junctions, Appl. Phys. Lett. 98, 073702 (2011).
  28. M. Cantoni, D. Petti, C. Rinaldi, and R. Bertacco: Bandstructure line-up of epitaxial Fe/MgO/Ge heterostructures: A combined x-ray photoelectron spectroscopy and transport study, Appl. Phys. Lett. 98, 032104 (2011).
  29. D. Petti, M. Cantoni, C. Rinaldi, S. Brivio, R. Bertacco, J. Gazquez, and M. Varela: Sharp Fe/MgO/Ge(001) epitaxial heterostructures for tunneling junctions, J. Appl. Phys. 109, 084909 (2011).
  30. M. Cantoni, D. Petti, C. Rinaldi, and R. Bertacco: Epitaxial growth of Fe/MgO/Ge(001) heterostructures, Microelectron. Eng. 88, 530 (2011).
  31. S. Brivio, M. Cantoni, D. Petti, and R. Bertacco: Near-room-temperature control of magnetization in field effect devices based on La0.67Sr0.33MnO3 thin films, J. Appl. Phys. 108, 113906 (2010).
  32. M. Cantoni, D. Petti, R. Bertacco, I. Pallecchi, D. Marré, G. Colizzi, A. Filippetti, and V. Fiorentini: Band alignment at Cu2O/La0.7Sr0.3MnO3 interface: A combined experimental-theoretical determination, Appl. Phys. Lett. 97, 032115 (2010).
  33. C. Borioli, S. Franz, P. L. Cavallotti, M. Cantoni, and R. Bertacco: Influence of magnetic fields on autocatalytic deposition of Co--Fe thin films, J. Electrochem. Soc. 157, D437 (2010).
  34. D. Petti, M. Cantoni, M. Leone, R. Bertacco, and E. Rizzi: Activation of Zr--Co--rare earth getter films: An XPS study, Appl. Surf. Sci. 256, 6291 (2010).
  35. M. Donolato, P. Vavassori, M. Gobbi, M. Deryabina, M. F. Hansen, V. Metlushko, B. Ilic, M. Cantoni, D. Petti, S. Brivio, and R. Bertacco: On-chip manipulation of protein-coated magnetic beads via domain-wall conduits, Adv. Mater. 22, 2706 (2010).
  36. S. Brivio, C. Magen, A. A. Sidorenko, D. Petti, M. Cantoni, M. Finazzi, F. Ciccacci, R. De Renzi, M. Varela, S. Picozzi, and R. Bertacco: Effects of Au nanoparticles on the magnetic and transport properties of La0.67Sr0.33MnO3 ultrathin layers, Phys. Rev. B 81, 094410 (2010).
  37. W. Noun, E. Popova, F. Bardelli, Y. Dumont, R. Bertacco, A. Tagliaferri, M. Tessier, M. Guyot, B. Berini, and N. Keller: Determination of yttrium iron garnet superexchange parameters as a function of oxygen and cation stoichiometry, Phys. Rev. B 81, 054411 (2010).
  38. M. Donolato, M. Gobbi, P. Vavassori, M. Leone, M. Cantoni, V. Metlushko, B. Ilic, M. Zhang, S. X. Wang, and R. Bertacco: Nanosized corners for trapping and detecting magnetic nanoparticles, Nanotechnology 20, 385501 (2009).
  39. A. Cattoni, D. Petti, S. Brivio, M. Cantoni, R. Bertacco, and F. Ciccacci: MgO/Fe(001) and MgO/Fe(001)-p(1×1)O interfaces for magnetic tunnel junctions: A comparative study, Phys. Rev. B 80, 104437 (2009).
  40. M. Cantoni, R. Bertacco, A. Brambilla, and F. Ciccacci: Photon- and electron-induced surface voltage in electron spectroscopies on ZnSe(0 0 1), J. Electron Spectrosc. 173, 84 (2009).
  41. P. Vavassori, V. Metlushko, B. Ilic, M. Gobbi, M. Donolato, M. Cantoni, and R. Bertacco: Domain wall displacement in Py square ring for single nanometric magnetic bead detection, Appl. Phys. Lett. 93, 203502 (2008).
  42. D. Petti, R. Bertacco, S. Brivio, M. Cantoni, A. Cattoni, and F. Ciccacci: X-ray photoemission study of the Au/La0.67Sr0.33MnO3 interface formation, J. Appl. Phys. 103, 044903 (2008).
  43. A. Cattoni, R. Bertacco, M. Cantoni, F. Ciccacci, H. von Kaenel, and G. J. Norga: Impact of O2 exposure on surface crystallinity of clean and Ba terminated Ge(1 0 0) surfaces, Appl. Surf. Sci. 254, 2720 (2008).
  44. R. Bertacco, A. Tagliaferri, M. Riva, L. Signorini, M. Cantoni, A. Cattoni, F. Ciccacci, B. A. Davidson, F. Maccherozzi, I. Vobornik, and G. Panaccione: Surface electronic and magnetic properties of La2/3Sr1/3MnO3 thin films with extended metallicity above the Curie temperature, Phys. Rev. B 78, 035448 (2008).
  45. R. Bertacco, S. Brivio, M. Cantoni, A. Cattoni, D. Petti, M. Finazzi, F. Ciccacci, A. A. Sidorenko, M. Ghidini, G. Allodi, and R. De Renzi: Proximity effects induced by a gold layer on La0.67Sr0.33MnO3 thin films, Appl. Phys. Lett. 91, 102506 (2007).
  46. S. Brivio, M. Cantoni, D. Petti, A. Cattoni, R. Bertacco, M. Finazzi, F. Ciccacci, A. Sidorenko, G. Allodi, M. Ghidini, and R. de Renzi: Decrease of the Curie temperature in La0.67Sr0.33MnO3 thin films induced by Au capping, Mat. Sci. Eng. B 144, 93 (2007).
  47. S. Picozzi, C. Ma, Z. Yang, R. Bertacco, M. Cantoni, A. Cattoni, D. Petti, S. Brivio, and F. Ciccacci: Oxygen vacancies and induced changes in the electronic and magnetic structures of La0.66Sr0.33MnO3: A combined ab initio and photoemission study, Phys. Rev. B 75, 094418 (2007).
  48. M. Cantoni, M. Riva, G. Isella, R. Bertacco, and F. Ciccacci: Ultrathin Fe films on single-crystal and virtual Ge(001) substrates: Towards the control of magnetic properties, Appl. Surf. Sci. 252, 5304 (2006).
  49. M. Cantoni, M. Riva, R. Bertacco, and F. Ciccacci: Uniaxial magnetic anisotropies in Fe films on single crystal and virtual Ge(001) substrates studied with spin polarized inverse photoemission and MOKE, Phys. Rev. B 74, 134415 (2006).
  50. A. Cattoni, R. Bertacco, M. Riva, M. Cantoni, F. Ciccacci, H. von Känel, and G. J. Norga: Effect of Ba termination layer on chemical and electrical passivation of Ge (100) surfaces, Mat. Sci. Semicond. Process. 9, 701 (2006).
  51. R. Bertacco, M. Riva, M. Cantoni, L. Signorini, and F. Ciccacci: Epitaxial La2/3Sr1/3MnO3 thin films with metallic behavior above the Curie temperature, Appl. Phys. Lett. 86, 252502 (2005).
  52. M. Cantoni, M. Riva, G. Isella, R. Bertacco, and F. Ciccacci: Fe thin films grown on single-crystal and virtual Ge(001) substrates, J. Appl. Phys. 97, 093906 (2005).
  53. M. Bowen, A. Barthélémy, M. Bibes, E. Jacquet, J.-P. Contour, A. Fert, F. Ciccacci, L. Duò, and R. Bertacco: Spin-polarized tunneling spectroscopy in tunnel junctions with half-metallic electrodes, Phys. Rev. Lett. 95, 137203 (2005).
  54. A. Brambilla, P. Biagioni, M. Portalupi, M. Zani, M. Finazzi, L. Duò, P. Vavassori, R. Bertacco, and F. Ciccacci: Magnetization reversal properties of Fe∕NiO∕Fe(001) trilayers, Phys. Rev. B 72, 174402 (2005).
  55. U. Lüders, M. Bibes, J. Bobo, M. Cantoni, R. Bertacco, and J. Fontcuberta: Enhanced magnetic moment and conductive behavior in NiFe2O4 spinel ultrathin films, Phys. Rev. B 71, 134419 (2005).

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Last updated: 11th July 2016