Bernhard Keimer

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Bernhard Keimer (born August 24, 1964 in Ratingen ) is a German physicist and director at the Max Planck Institute for Solid State Research in Stuttgart .

Life

Keimer studied physics from 1983 to 1986 at the Technical University of Munich and from 1986 to 1991 at the Massachusetts Institute of Technology , where he obtained his Ph.D. received. From 1991 to 1992 he was a Postdoctoral Associate at MIT , and from 1992 to 1999 Assistant Professor, Associate Professor and Full Professor of Physics at Princeton University . Since 1998 he has been a Scientific Member of the Max Planck Society and Director at the Max Planck Institute for Solid State Research , and since 2000 Honorary Professor at the University of Stuttgart . He is spokesperson for the International Max Planck Research School for Condensed Matter Science and co-director of the Max Planck - University of British Columbia Center for Quantum Materials. Furthermore, he has been chairman of the University Council of the University of Stuttgart since 2016.

Prizes and awards

In 2011, Keimer was awarded the Gottfried Wilhelm Leibniz Prize by the German Research Foundation. During his time at Princeton University , he received a Research Fellowship from the Alfred P. Sloan Foundation and a David and Lucile Packard Foundation in 1996 . He is a member of the Heidelberg Academy of Sciences and Fellow of the Faculty of Engineering at the University of Tokyo . In 2014 he received an ERC Advanced Investigators Grant.

research

Keimer's research focus is on collective quantum phenomena (such as unconventional superconductivity and its interplay with spin, charge and orbital order ) in materials with strong electronic correlations and at interfaces of complex materials. One class of materials intensively investigated by Keimer are the oxidic high-temperature superconductors , for example YBa 2 Cu 3 O 7-x . His working group is developing new spectroscopic methods (such as high-resolution neutron spectroscopy) to elucidate the mechanisms of these phenomena.

Publications

  • V. Hinkov, D. Haug, B. Fauqué, P. Bourges, Y. Sidis, A. Ivanov, C. Bernhard, CT Lin, B. Keimer. Electronic Liquid Crystal State in the High-Temperature Superconductor YBa 2 Cu 3 O 6.45 . Science 319: 597 (2008).
  • T. Dahm, V. Hinkov, SV Borisenko, AA Kordyuk, VB Zabolotnyy, J. Fink, B. Büchner, DJ Scalapino, W. Hanke, B. Keimer. Strength of the spin-fluctuation-mediated pairing interaction in a high-temperature superconductor . Nature Physics 5: 217 (2009).
  • M. Le Tacon, G. Ghiringhelli, J. Chaloupka, M. Moretti Sala, V. Hinkov, MW Haverkort, M. Minola, M. Bakr, KJ Zhou, S. Blanco-Canosa, C. Monney, YT Song, GL Sun, CT Lin, GM De Luca, M. Salluzzo, G. Khaliullin, T. Schmitt, L. Braicovich, Keimer. Intense paramagnon excitations in a large family of high-temperature superconductors. Nature Physics 7, 725 (2011).
  • SP Bayrakci, DA Tennant, Ph. Leininger, T. Keller, MCR Gibson, SD Wilson, RJ Birgeneau, B. Keimer. Lifetimes of Antiferromagnetic Magnons in Two and Three Dimensions: Experiment, Theory, and Numerics. Phys. Rev. Lett. 111, 017204 (2013).
  • M. Le Tacon, A. Bosak, SM Souliou, G. Dellea, T. Loew, R. Heid, K.-P. Bohnen, G. Ghiringhelli, M. Krisch, B. Keimer. Inelastic X-ray scattering in YBa 2 Cu 3 O 6.6 reveals giant phonon anomalies and elastic central peak due to charge density wave formation. Nature Physics 10, 52 (2014).
  • J. Chakhalian, JW Freeland, H.-U. Habermeier, G. Cristiani, G. Khaliullin, M. van Veenendaal, B. Keimer. Orbital reconstruction and covalent bonding at an oxide interface. Science 318, 1114 (2007).
  • E. Benckiser, MW Haverkort, S. Brück, E. Goering, S. Macke, A. Frañó, X. Yang, OK Andersen, G. Cristiani, H.-U. Habermeier, AV Boris, I. Zegkinoglou, P. Wochner, HJ Kim, V. Hinkov, B. Keimer. Orbital reflectometry of oxide heterostructures. Nature Materials 10, 189 (2011).
  • AV Boris, Y. Matiks, E. Benckiser, A. Frañó, P. Popovich, V. Hinkov, P. Wochner, M. Castro-Colin, E. Detemple, VK Malik, C. Bernhard, T. Prokscha, A. Suter, Z. Salman, E. Morenzoni, G. Cristiani, H.-U. Habermeier, B. Keimer. Dimensionality control of electronic phase transitions in nickel-oxide superlattices. Science 332, 937 (2011).
  • N. Driza, S. Blanco-Canosa, M. Bakr, S. Soltan, M. Khalid, L. Mustafa, K. Kawashima, G. Christiani, H.-U. Habermeier, G. Khaliullin, C. Ulrich, M. Le Tacon, B. Keimer. Long-range transfer of electron-phonon coupling in oxide superlattices. Nature Materials 11, 675 (2012).
  • A. Frano, E. Schierle, MW Haverkort, Y. Lu, M. Wu, S. Blanco-Canosa, U. Nwankwo, AV Boris, P. Wochner, G. Cristiani, H.-U. Habermeier, G. Logvenov, V. Hinkov, E. Benckiser, E. Weschke, B. Keimer. Orbital control of noncollinear magnetic order in nickelate heterostructures. Phys. Rev. Lett. 111, 106804 (2013).

Web links

Individual evidence

  1. ^ [1] Max Planck Society
  2. ^ [2] Max Planck Institute for Solid State Research
  3. ^ The Senate and the University Council | University of Stuttgart. Retrieved September 15, 2018 .
  4. ↑ Stuttgarter Zeitung, Stuttgart, Germany: University of Stuttgart: Rector Ressel asserts himself against challengers . In: stuttgarter-zeitung.de . ( stuttgarter-zeitung.de [accessed September 15, 2018]).
  5. ^ Südwest Presse Online-Dienst GmbH: In a nutshell from February 9, 2016 . In: swp.de . February 9, 2016 ( swp.de [accessed September 15, 2018]).
  6. ↑ ERC Advanced Grants 2014 results List of principal investigators - Physical Sciences and Engineering. Retrieved September 16, 2018 .
  7. ^ ERC Advanced Grant. Retrieved September 15, 2018 .
  8. ↑ B. Keimer et al. : From quantum matter to high-temperature superconductivity in copper oxides . In: Nature . 518, 2015, p. 179. doi : 10.1038 / nature14165 .
personal data
SURNAME Keimer, Bernhard
BRIEF DESCRIPTION German physicist
DATE OF BIRTH August 24, 1964
PLACE OF BIRTH Ratingen