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1,178 results on '"Raschke, M"'

2. Infrared nano-spectroscopy of ferroelastic domain walls in hybrid improper ferroelectric Ca$_3$Ti$_2$O$_7$

Author

Smith, K. A., Nowadnick, E. A., Fan, S., Khatib, O., Lim, S. J., Gao, B., Harms, N. C., Neal, S. N., Kirkland, J. K., Martin, M. C., Won, C. J., Raschke, M. B., Cheong, S. -W., Fennie, C. J., Carr, G. L., Bechtel, H. A., and Musfeldt, J. L.

Subjects
Condensed Matter - Materials Science
Abstract

Ferroic materials are well known to exhibit heterogeneity in the form of domain walls. Understanding the properties of these boundaries is crucial for controlling functionality with external stimuli and for realizing their potential for ultra-low power memory and logic devices as well as novel computing architectures. In this work, we employ synchrotron-based near-field infrared nano-spectroscopy to reveal the vibrational properties of ferroelastic (90$^\circ$ ferroelectric) domain walls in the hybrid improper ferroelectric Ca$_3$Ti$_2$O$_7$. By locally mapping the Ti-O stretching and Ti-O-Ti bending modes, we reveal how structural order parameters rotate across a wall. Thus, we link observed near-field amplitude changes to underlying structural modulations and test ferroelectric switching models against real space measurements of local structure. This initiative opens the door to broadband infrared nano-imaging of heterogeneity in ferroics.

Published
2019
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10. P16-33: Identifying and characterizing toxicity liabilities of pharmaceuticals using ToxProfiler: A blinded case study with the ITLF consortium

Author

Braak, B. Ter, primary, Wolters, L., additional, Elbertse, K., additional, Beilmann, M., additional, Boonen, H., additional, Doherty, A., additional, Van Goethem, F., additional, Hewitt, P., additional, Hornberg, J., additional, Koch, J., additional, Kusterman, S., additional, Lyon, J., additional, Oinonen, T., additional, Raschke, M., additional, Vicart, A., additional, Zeller, A., additional, Jamalpoor, A., additional, Hendriks, G., additional, and Steger-Hartmann, T., additional

Published
2023
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17. Highly site-specific H2 adsorption on vicinal Si(001) surfaces

Author

Kratzer, P., Pehlke, E., Scheffler, M., Raschke, M. B., and Hofer, U.

Subjects
Condensed Matter
Abstract

Experimental and theoretical results for the dissociative adsorption of H_2 on vicinal Si(001) surfaces are presented. Using optical second-harmonic generation, sticking probabilities at the step sites are found to exceed those on the terraces by up to six orders of magnitude. Density functional theory calculations indicate the presence of direct adsorption pathways for monohydride formation but with a dramatically lowered barrier for step adsorption due to an efficient rehybridization of dangling orbitals., Comment: 5 pages, 4 figures, submitted to Phys. Rev. Lett. (1998). Other related publications can be found at http://www.fhi-berlin.mpg.de/th/paper.html

Published
1998
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28. Unfallheilkunde

Author

Raschke, M. J., Haas, N. P., Siewert, J. Rüdiger, Allgöwer, M., editor, Bartels, H., editor, Becker, H. D., editor, Becker, H.-M., editor, Biemer, E., editor, Bumm, R., editor, Coerper, St., editor, Daschner, F., editor, Detter, B., editor, Encke, A., editor, Feussner, H., editor, von Flühe, M., editor, Frey, L., editor, Göhl, J., editor, Gratzl, O., editor, Haas, N. P., editor, Hempel, K., editor, Herfarth, Ch., editor, Hermanek, P., editor, Herzog, U., editor, Hölscher, A.-H., editor, Hohenberger, W., editor, Horch, H.-H., editor, Kappstein, I., editor, Kaufmann, M., editor, Koller, M., editor, Kremer, B., editor, Krieglstein, C. F., editor, Lange, R., editor, Lehr, L., editor, Lorenz, W., editor, Meßmer, K., editor, Miethke, Th., editor, Neuhaus, P., editor, Pfitzmann, R., editor, Raschke, M. J., editor, Rem, J. A., editor, Röher, H.-D., editor, Roder, Jürgen D., editor, Rothmund, M., editor, Schackert, H., editor, Scheidegger, D., editor, Schweizer, P., editor, Sendler, A., editor, Senninger, N., editor, Siewert, J. R., editor, Simon, D., editor, Sunder-Plassmann, L., editor, Stein, H.-J., editor, Stübinger, B., editor, Teichmann, A., editor, Tondelli, P., editor, Urwyler, A., editor, Vogelsang, H., editor, Wagner, H., editor, Wasner, M., editor, and Wittekind, Ch., editor

Published
2001
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29. Unfallchirurgie

Author

Raschke, M. J., Haas, N. P., Siewert, Jörg Rüdiger, editor, and Stein, Hubert J., editor

Published
2012
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47. Active Coating of Implants used in Orthopedic Surgery

Author

Raschke, M. J., Fuchs, T., Stange, R., Lucke, M., Kandziora, F., Wildemann, B., Schmidmaier, G., Leung, Kwok-Sui, editor, Taglang, Gilbert, editor, Schnettler, Reinhard, editor, Alt, Volker, editor, Haarman, H. J. T. M., editor, Seidel, Hartmut, editor, and Kempf, Ivan, editor

Published
2006
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