Riccardo Bertacco
Associate professor
Contact
e-mail: | |
tel: | Como: +39 031 332 7309 |
| Milano: +39 02 2399 6066 |
fax: | Como: +39 031 332 7617 |
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address: | Politecnico di Milano |
| Polo di Como |
| Via Anzani 42 |
| 22100 Como |
| Italy |
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office: | Via Anzani 1.07 |
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Main Research Interest
Publications
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M. Asa, C. Rinaldi, L. Nessi, D. Chrastina, D. Petti, E. Albisetti, R. Bertacco, and M. Cantoni: Epitaxy and controlled oxidation of chromium ultrathin films on ferroelectric BaTiO3 templates, J. Cryst. Growth 558, 126012 (2021).
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C. Rinaldi, S. Bertoli, M. Asa, L. Baldrati, C. Manzoni, M. Marangoni, G. Cerullo, M. Bianchi, R. Sordan, and R. Bertacco: Determination of the spin diffusion length in germanium by spin optical orientation and electrical spin injection, J. Phys. D: Appl. Phys. 49, 425104 (2016).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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C. Rinaldi, M. Espahbodi, M. Cantoni, and R. Bertacco: Spin-photodiodes for SiGe spin-optoelectronics, Proc. SPIE Int. Soc. Opt. Eng. 8461, 84611F (2012).
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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).
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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).
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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).
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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).
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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).
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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).
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R. Bertacco, M. Cantoni, D. Petti, C. Rinaldi, and M.Leone: Dispositivo rilevatore ottico spintronico, Italian Patent 2011 (2011).
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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).
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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).
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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).
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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).
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S. Brivio, C. Rinaldi, D. Petti, R. Bertacco, and F. Sanchez: Epitaxial growth of Fe/BaTiO3 heterostructures, Thin Solid Films 519, 5804 (2011).
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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).
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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).
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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).
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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).
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M. Cantoni, D. Petti, C. Rinaldi, and R. Bertacco: Epitaxial growth of Fe/MgO/Ge(001) heterostructures, Microelectron. Eng. 88, 530 (2011).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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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