Andreas Schmid Staff Scientist National Center for Electron Microscopy Lawrence Berkeley National Laboratory One Cyclotron Rd., MS 72-150 Berkeley, CA 94720 (510) 486-4564 AKSchmid@lbl.gov
EDUCATION M. S. Oregon State University 1986 Ph. D. Freie Universitaet, Berlin, Germany 1992 Research Focus Magnetic phenomena in surfaces, thin films, multilayers, nanostructures. Nanoscale self-assembly and self-organization. Instrumentation development for spectroscopy and microscopy research applications. In-situ microscopy, using time-resolved microscopies to find atomic mechanisms of: Self-assembly and self-organization of nanostructures Magnetic phenomena Diffusion in surface layers Surface alloy phase transformations Motion and interactions of dislocations in surface layers PUBLICATIONS “Imaging Spin Reorientation Transitions in Consecutive Atomic Co layers”, Farid El Gabaly, Silvia Gallego, M. Carmen Munoz, Laszlo Szunyogh, Peter Weinberger, Kevin F. McCarty, Christof Klein, Andreas K. Schmid, Juan de la Figuera, submitted “Direct imaging of spin-reorientation transitions in ultra-thin Ni films by spin-polarized low-energy electron microscopy”, C. Klein, A. K. Schmid, R. Ramchal, and M. Farle, submitted “Controlling the kinetic order of spin-reorientation transitions in Ni/Cu(100) films by tuning the substrate step-structure”, C. Klein, R. Ramchal, A.K. Schmid, M. Farle, submitted “Self-organization and magnetic domain microstructure of Fe nanowire arrays”, N. Rougemaille and A.K. Schmid, submitted “Self-Assembled Nanofold Network Formation on Layered Crystal Surfaces During Metal Intercalation”, E. Spiecker, A. K. Schmid, A. M. Minor, U. Dahmen, S. Hollensteiner, and W. Jaeger, submitted “Nano-sized magnetic instabilities in Fe/NiO/Fe(001) epitaxial thin films”, A. Brambilla, P.Biagioni, N. Rougemaille, A. K. Schmid, A. Lanzara, L. Duò, F. Ciccacci, M. Finazzi, submitted ∑“Spin-induced forbidden evanescent states in III-V semiconductors”, N. Rougemaille, H.-J. Drouhin, S. Richard, G. Fishman, A.K. Schmid, Phys. Rev. Lett. 95, 186406 (2005) “Spin-Dependent Fabry-Perot Interference from a Cu Thin Film Grown on fcc Co(001)”, Y. Z. Wu, A. K. Schmid, M. S. Altman, X. F. Jin, and Z. Q. Qiu, Phys. Rev. Lett. 94, 027201 (2005) “Magnetic Bistability of Co Nanodots”, H. F. Ding, A. K. Schmid, Dongqi Li, K.Yu. Guslienko, and S. D. Bader, Phys. Rev. Lett. 94, 157202 (2005) “Selective growth of Co nanoislands on an oxygen patterned Ru(0001) surface”, H. F. Ding, A. K. Schmid, D. J. Keavney, Dongqi Li, R. Cheng, J. E. Pearson, F. Y. Fradin, and S. D. Bader, Phys. Rev. B72, 35413 (2005) “Mapping the spin-dependent electron reflectivity of Fe and Co ferromagnetic thin films”, J. Graf, C. Jozwiak, A. K. Schmid, Z. Hussain, and A. Lanzara, Phys. Rev. B71, 144429 (2005) “Electron states and the spin density wave phase diagram in Cr(1 1 0) films”, Eli Rotenberg, B K Freelon, H Koh, A Bostwick, K Rossnagel, Andreas Schmid and S D Kevan, New Journal of Physics 7, 114 (2005) “Transmission electron microscopy based study of epitaxy in Nb/ (100)Cu bilayer and Cu/Nb/ (100)Cu trilayer nanoscale films”, D. Mitlin, A. K. Schmid, and V. Radmilovic, Appl. Phys. Lett. 86, 051904 (2005) “Magnetic properties of Fe/NiO/Fe(001) trilayers”, P. Biagioni, A. Brambilla, M. Portalupi, N. Rougemaille, A.K. Schmid, A. Lanzara, P. Vavassori, M. Zania, M. Finazzia, L. Duo, F. Ciccacci, J. Magn. Magn. Mat. 290–291, 153 (2005) “Spiral-like continuous spin-reorientation transition of Fe/Ni bilayers on Cu(100)”, R. Ramchal, A. K. Schmid, M. Farle, and H. Poppa, Phys. Rev. B69, 214401 (2004) “Crucial role of substrate steps in de-wetting of crystalline thin films”, W.L. Ling, T. Giessel, K. Thürmer, R.Q. Hwang, N.C. Bartelt, K.F. McCarty, Surface Science 570, L297–L303 (2004) “Strain Relief through Heterophase Interface Reconstruction: Ag(111)/Ru(0001)” W.L. Ling, J.de la Figuera, N.C. Bartelt, R.Q. Hwang, A.K. Schmid, G. E. Thayer, and J.C. Hamilton, Phys. Rev. Lett. 92, 116102 (2004) “Magnetic domains and domain-wall structure in Ni/Cu(001) films imaged by spin-polarized low-energy electron microscopy”, R. Ramchal, A. K. Schmid, M. Farle, and H. Poppa, Phys. Rev. B68, 054418 (2003) “Low-Energy Electron Microscopy: Imaging Surface Dynamics”, Raymond J. Phaneuf and Andreas K. Schmid, Physics Today 56, 50 (2003) “In situ observation of magnetic domain pattern evolution in applied fields by spin-polarized low energy electron microscopy”, H. Poppa, E.D. Tober, A.K. Schmid, J. Appl. Phys. 91, 6932 (2002) “Linking Surface Stress to Surface Structure: Measurement of Atomic Strain in a Surface Alloy using Scanning Tunneling Microscopy”, G. E. Thayer, N. C. Bartelt, V. Ozolins, A. K. Schmid, S. Chiang, and R. Q. Hwang, Phys. Rev. Lett. 89, 36101 (2002) “Determination of Buried Dislocation Structures by Scanning Tunneling Microscopy”, J. de la Figuera, A.K. Schmid, N.C. Bartelt, K. Pohl, and R.Q. Hwang, Phys. Rev. B63, 165431 (2001) “The Role of Stress in Thin Film Alloy Thermodynamics: Competition between Alloying and Dislocation Formation”, G.E. Thayer, V. Ozolins, A.K. Schmid, N.C. Bartelt, M. Asta, J.J. Hoyt, S. Chiang, and R.Q. Hwang, Phys. Rev. Lett. 86, 660 (2001) “Direct Observation of Misfit Dislocation Glide on Surfaces”, J. de la Figuera, K. Pohl, O.R. de la Fuente, A.K. Schmid, N.C. Bartelt, C.B. Carter, and R.Q. Hwang, Phys. Rev. Lett. 86, 3819 (2001) “In-Situ STM Studies of Strain Stabilized Thin Film Dislocation Networks Under Applied Stress”, O. Schaff, A.K. Schmid, N.C. Bartelt, J. de la Figuera, and R.Q. Hwang, accepted for publication in Materials Science and Engineering A319, 914 (2001) “Alloying at Surfaces by the Migration of Reactive Two-Dimensional Islands”, A. K. Schmid, N. C. Bartelt, and R. Q. Hwang, Science 290, 1561 (2000) “Equilibrated Surface Alloys and the Influence of Strain,” G.E. Thayer, V. Ozolins, A.K. Schmid, J.L. Stevens, S. Chiang, R.Q. Hwang, Materials Research Society Symposium Proceedings Volume 619, Recent Developments in Oxide and Metal Epitaxy-Theory and Experiment, ed. M. Yeadon, S. Chiang., R. F. C. Farrow, J. W. Evans, O. Auciello, Materials Research Society, Warrendale, PA, pp. 85-89 (2000) “Bronze Formation and the Motion of Mesoscopic Tin Clusters on a Copper Surface”, A. K. Schmid, N. C. Bartelt, and R. Q. Hwang, Surface Review and Letters 7, 515 (2000) “Island Formation During Deposition or Etching”, M.C. Bartelt, J.B. Hannon, A.K. Schmid, C.R. Stoldt, and J.W. Evans, Colloids and Surfaces A: Physicochemical and Engineering Aspects 165, 373 (2000) “A Prelude to Surface Chemical Reaction: Imaging the Induction Period of Sulfur Interaction with a Stained Cu Layer”, J. Hrbek, J. de la Figuera, K. Pohl, T. Jirsak, J.A. Rodriguez, A.K. Schmid, N.C. Bartelt, and R.Q. Hwang, J. Phys. Chem. B 103, 10557 (1999) “Short Range Order and Phase Stability of Surface Alloys: PdAu on Ru(0001)”, B. Sadigh, M. Asta, V. Ozolins, A.K. Schmid, N.C. Bartelt, A.A. Quong, and R.Q. Hwang, Phys. Rev. Lett. 83, 1379 (1999) “Island Size and Environment Dependence of Adatom Capture”, M.C. Bartelt, J.W. Evans, A.K. Schmid, and R.Q. Hwang, in Mechanisms and Principles of Epitaxial Growth in Metallic Systems MRS Symp. Proc. Vol. 528, p.253, edited by L.T. Wille, C.P. Burmester, K. Terakura, G. Comsa, E.D. Williams, Materials Research Society, Pittsburgh, (1999) “Investigation of the NO + H2 Reaction on Pt(100) with Low Energy Electron Microscopy,” B. Rausenberger, W. Swiech, A.K. Schmid, C.S. Rastomjee, W. Engel, and A.M. Bradshaw, Journal of the Chemical Society – Faraday Transactions 94, 963 (1998) “Predicting the Future of a Complex Surface Structure: Grain Coarsening of Oxygen Films on Ruthenium,” A.K. Schmid, R.Q. Hwang, and N.C. Bartelt , Phys. Rev. Lett. 80, 2153 (1998) “STM Study of Au Growth on S-modified Ru(0001),” J. Hrbek, A.K. Schmid, M.C. Bartelt, and R.Q. Hwang, Surf. Sci. Lett. 385, L1002 (1997) “Brownian Motion of Dislocations in Thin Films,” A.K. Schmid, N.C. Bartelt, J.C. Hamilton, C.B. Carter, and R.Q. Hwang, Phys. Rev. Lett. 78, 3507 (1997) “Surface Alloy Formation by Interdiffusion across a Linear Interface,” A.K. Schmid, J.C. Hamilton, N.C. Bartelt, and R.Q. Hwang, Phys. Rev. Lett. 77, 2977 (1996) “The Chemistry of Reaction-Diffusion Fronts Investigated by Microscopic LEED I-V Fingerprinting,” A.K. Schmid, W. Swiech, C.S. Rastomjee, B. Rausenberger, W. Engel, E. Zeitler, A.M. Bradshaw, Surf. Sci. 333, 225 (1995) “Surface Alloying and Pinhole Formation in Ultra-Thin Fe/Cu(100) Films,” J. Shen, J. Giergiel, A.K. Schmid, J. Kirschner, Surf. Sci. 328, 32 (1995) “On the Complex Structure of Reaction-Diffusion Fronts Observed during CO Oxidation on Pt(100),” W. Swiech, C.S. Rastomjee, R. Imbihl, J.W. Evans, B. Rausenberger, W.Engel, A.K. Schmid, A.M. Bradshaw, E. Zeitler, Surf. Sci. 307-309, 138 (1994) “Reconstructions and Growth of Ag on Si(001)(2x1),” D. Winau, H. Itoh, A.K. Schmid, T. Ichinokawa, Surf. Sci. 303, 139 (1994) “Scanning Tunneling Microscopic Studies of Surface Reconstructed Structures for Metal/Si(100) Systems,” T. Ichinokawa, H. Itoh, A. Schmid, D. Winau, Ultramicroscopy 54, 116 (1994) “Growth Mode and Surface Structure of the Pb/Si(001) System Observed by Scanning Tunneling Microscopy,” H. Itoh, H. Tanabe, D. Winau, A.K. Schmid, and T. Ichinokawa, J. Vac. Sci. Technol. B12(3), 2086 (1994) “Ag on Si(001)(2x1) Formation of a 2x3 Superstructure,” D. Winau, H. Itoh, A.K. Schmid, and T. Ichinokawa, J. Vac. Sci. Technol. B12(3), 2082 (1994) “Reconstructed Structures in Metal/Si(100) Surfaces at High Temperature Observed by Scanning Tunneling Microscopy,” T. Ichinokawa, H. Itoh, A. Schmid, and D. Winau, J. Vac. Sci. Technol. B 12(3), 2070 (1994) “Temperature-Depending Growth and Surface Structures of Low-Coverage Al Phases on Si(100) Observed by Scanning Tunneling Microscopy,” H. Itoh, J. Itoh, A. Schmid, T. Ichinokawa, Surf. Sci. 302, 295 (1994) “Structures of Low-Coverage Phases of Al on the Si(100) Surface Observed by Scanning Tunneling Microscopy,” H. Itoh, J. Itoh, A.K. Schmid, and T. Ichinokawa, Phys. Rev. B48, 14663 (1993) “Influence of Growth and Structure on the Magnetism of Epitaxial Cobalt Films on Cu(001),” C.M. Schneider, A.K. Schmid, P. Schuster, H.P. Oepen, and J. Kirschner, Magnetism and Structure in Systems of Reduced Dimension, Eds. R.C.F. Farrow et al., Plenum Press, New York, (1993) ”Fast interdiffusion in Thin Films: Scanning-Tunneling Microscopy Determination of Surface Diffusion through Microscopic Pinholes,” A.K. Schmid, D. Atlan, H. Itoh, B. Heinrich, T. Ichinokawa, and J. Kirschner, Phys. Rev. B48, 2855 (1993) “In Situ Observation of Epitaxial Growth of Co Thin Films on Cu(100),” A.K. Schmid and J. Kirschner, Ultramicroscopy 42-44, 483 (1992) “An Ultrahigh Vacuum-Compatible Scanning Tunneling Microscope Head Mounted on a 2 3/4 in. Outer Diameter Flange,” A.K. Schmid and J. Kirschner, J. Vac. Sci. Technol. B9(2), 648 (1991)