Dr. Thorsten Schmitt

photo of Thorsten Schmitt Group leader
Spectroscopy of Novel Materials Group

Paul Scherrer Institute
WSLA/123
5232 Villigen PSI
Switzerland

Telephone: +41 56 310 3762
E-mail: thorsten.schmitt@psi.ch





Short CV

Position: Group Leader "Spectroscopy of Novel Materials"

Research Interests
  • Electronic structure and magnetic properties of strongly correlated materials
  • Metal-insulator transitions in transition metal oxides
  • Electronic structure and magnetic properties at the interface of oxide heterostructures
  • Excitations of spin-, charge- and obital-degrees-of-freedom in low-dimensional transition metal oxides
  • Superconductivity in iron pnictide and cuprate superconductors
  • Unconventional Mott physics in iridate materials
  • Resonant inelastic X-ray Scattering, X-ray absorption and emission spectroscopy
  • Synchrotron radiation instrumentation
Education
1999 - 2004 Ph. D. in Physics (Dr. phil.), Uppsala University, Sweden, with Prof. J. Nordgren, thesis title: Resonant Soft X-ray Emission Spectroscopy of Vanadium Oxides and Related Compounds, date of defense: May 24, 2004
May 1999 Dipl. Phys., Johannes Gutenberg-University of Mainz, Germany, diploma thesis with Prof. Dr. M. Stamm and Prof. Dr. G. Schönhense
Research Positions
Since 06/2012 Group Leader "Spectroscopy of Novel Materials"
07/2009 – 08/2010 Ad-interim Group Leader of the Spectroscopy of Novel Materials Group, Swiss Light Source, Paul Scherrer Institut, Villigen PSI, Switzerland
Since 06/2005 Beamline scientist at the Swiss Light Source, Paul Scherrer Institut, Switzerland
2004 - 2005 Postdoctoral fellow, Royal Institute of Technology, Kista, Sweden and MAX-Lab, Lund University, Lund, Sweden, with Prof. Dr. U. O. Karlsson
09/1999 – 05/2004 Graduate Researcher (Ph.D. student) and Teaching Assistant in the group of Prof. Dr. Joseph Nordgren at the Department of Physics, Uppsala University, Sweden

Selected publications

  • Asymmetry of collective excitations in electron and hole doped cuprate superconductors, W. S. Lee, J. J. Lee, E. A. Nowadnick, W. Tabis, S. W. Huang, V.N. Strocov, E. M. Motoyama, G. Yu, B. Moritz, M. Greven, T. Schmitt, Z. X. Shen, T. P. Devereaux, arXiv:1308.4740, submitted to Nature Physics.
  • Inelastic x-ray scattering from valence electrons near absorption edges of FeTe and TiSe2, B. Barbiellini, J. N. Hancock, C. Monney, Y. Joly, G. Ghiringhelli, L. Braicovich, and T. Schmitt, Phys. Rev. B 89, 235138 (2014).
  • Femtosecond Dynamics of Momentum-Dependent Magnetic Excitations from Resonant Inelastic X-Ray Scattering in CaCu2O3, Valentina Bisogni, Stefanos Kourtis, Claude Monney, Kejin Zhou, Roberto Kraus, Chinnathambi Sekar, Vladimir Strocov, Bernd Büchner, Jeroen van den Brink, Lucio Braicovich, Thorsten Schmitt, Maria Daghofer, and Jochen Geck, Phys. Rev. Lett. 112, 147401 (2014).
  • Resonant inelastic x-ray scattering at the Fe L3 edge of the one-dimensional chalcogenide BaFe2Se3, C. Monney, A. Uldry, K. J. Zhou, A. Krzton-Maziopa, E. Pomjakushina, V. N. Strocov, B. Delley, and T. Schmitt, Phys. Rev. B 88, 165103 (2013).
  • High-Energy Magnetic Excitations in the Cuprate Superconductor Bi2Sr2CaCu2O8+δ: Towards a Unified Description of Its Electronic and Magnetic Degrees of Freedom, M. P. M. Dean, A. J. A. James, R. S. Springell, X. Liu, C. Monney, K. J. Zhou, R. M. Konik, J. S. Wen, Z. J. Xu, G. D. Gu, V. N. Strocov, T. Schmitt, and J. P. Hill, Phys. Rev. Lett. 110, 147001 (2013).
  • Determining the Short-Range Spin Correlations in the Spin-Chain Li2CuO2 and CuGeO3 Compounds Using Resonant Inelastic X-Ray Scattering, Claude Monney, Valentina Bisogni, Ke Jin Zhou, Roberto Kraus, Vladimir N. Strocov, Günter Behr, Jiri Malek, Roman Kuzian, Stefan-Ludwig Drechsler, Steve Johnston, Alexandre Revcolevschi, Bernd Büchner, Henrik M. Rønnow, Jeroen van den Brink, Jochen Geck, and Thorsten Schmitt, Phys. Rev. Lett. 110, 087403 (2013).
  • Persistent high-energy spin excitations in iron pnictide superconductors, Ke-Jin Zhou, Yao-Bo Huang, Claude Monney, Xi Dai, Vladimir N. Strocov, Nan-Lin Wang, Zhi-Guo Chen, Chenglin Zhang, Pengcheng Dai, Luc Patthey, Jeroen van den Brink, Hong Ding, and Thorsten Schmitt, Nature Communications 4, 1470 (2013), doi: 10.1038/ncomms2428.
  • Persistence of magnetic excitations in La2−xSrxCuO4 from the undoped insulator to the heavily overdoped non-superconducting metal, M. P. M. Dean, G. Dellea, R. S. Springell, F. Yakhou-Harris, K. Kummer, N. B. Brookes, X. Liu, Y-J. Sun, J. Strle, T. Schmitt, L. Braicovich, G. Ghiringhelli, I. Božović, and J. P. Hill, Nature Materials 12, 1019–1023 (2013), doi:10.1038/nmat3723.
  • A Multispectroscopic Study of 3d Orbitals in Cobalt Carboxylates: The High Sensitivity of 2p3d Resonant X-ray Emission Spectroscopy to the Ligand Field, Matti M. van Schooneveld, Robert W. Gosselink, Tamara M. Eggenhuisen, Mustafa Al Samarai, Claude Monney, Kejin J. Zhou, Thorsten Schmitt, Frank M. F. de Groot, Angewandte Chemie 52,1170-1174 (2013), doi: 10.1002/anie.201204855.
  • High-resolution resonant inelastic X-ray scattering with soft X-rays at the ADRESS beamline of the Swiss Light Source: Instrumental developments and scientific highlights, Thorsten Schmitt, Vladimir N. Strocov, Ke-Jin Zhou, Justine Schlappa, Claude Monney, Uwe Flechsig, Luc Patthey, Journal of Electron Spectroscopy and Related Phenomena 188, 38–46 (2013).
  • Spin excitations in a single La2CuO4 layer, M. P. M. Dean, R. S. Springell, C. Monney, K. J. Zhou, J. Pereiro, I. Božovic, B. Dalla Piazza, H. M. Rønnow, E. Morenzoni, J. van den Brink, T. Schmitt, and J. P. Hill, Nature Materials 11, 850–854 (2012), doi:10.1038/nmat3409.
  • Spin–orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3, J. Schlappa, K. Wohlfeld, K. J. Zhou, M. Mourigal, M. W. Haverkort, V. N. Strocov, L. Hozoi, C. Monney, S. Nishimoto, S. Singh, A. Revcolevschi, J.-S. Caux, L. Patthey, H. M. Rønnow, J. van den Brink, and T. Schmitt, Nature 485, 82–85 (2012).
  • Mapping of Electron-Hole Excitations in the Charge-Density-Wave System 1T-TiSe2 Using Resonant Inelastic X-Ray Scattering, C. Monney, K. J. Zhou, H. Cercellier, Z. Vydrova, M. G. Garnier, G. Monney, V. N. Strocov, H. Berger, H. Beck, T. Schmitt, and P. Aebi, Phys. Rev. Lett. 485, 109, 047401 (2012).
  • Localized and delocalized Ti 3d carriers in LaAlO3/SrTiO3 superlattices revealed by resonant inelastic x-ray scattering, Kejin Zhou, Milan Radovic, Justine Schlappa, Vladimir Strocov, Ruggero Frison, Joel Mesot, Luc Patthey, and Thorsten Schmitt, Phys. Rev. B - Rap. Comm. 83, 201402 (2011).
  • Intense paramagnon excitations in a large family of high-temperature superconductors, M. Le Tacon, G. Ghiringhelli, J. Chaloupka, M. Moretti Sala, V. Hinkov, M. W. Haverkort, M. Minola, M. Bakr, K. J. Zhou, S. Blanco-Canosa, C. Monney, Y. T. Song, G. L. Sun, C. T. Lin, G. M. De Luca, M. Salluzzo, G. Khaliullin, T. Schmitt, L. Braicovich, and B. Keimer, Nature Physics 7, 725-730 (2011), doi:10.1038/nphys2041.
  • Unveiling the complex electronic structure of amorphous metal oxides, C. Århammar, Annette Pietzsch, Nicolas Bock, Erik Holmström, C. Moyse Araujo, Johan Gråsjö, Shuxi Zhao, Sara Green, T. Peery, Franz Hennies, Shahrad Amerioun, Alexander Föhlisch, Justine Schlappa, Thorsten Schmitt, Vladimir N. Strocov, Gunnar A. Niklasson, Duane C. Wallace, Jan-Erik Rubensson, Börje Johansson, and Rajeev Ahuja, PNAS 108, 6355-6360 (2011).
  • Numerical optimization of spherical variable-line-spacing grating X-ray spectrometers, V.N. Strocov, T. Schmitt, U. Flechsig, L. Patthey, S. G. Chiuzbaian, J. Synchrotron Rad. 18, 134 (2011).
  • High-resolution soft-X-ray beamline ADRESS at the Swiss Light Source for resonant inelastic X-ray scattering and angle-resolved photoelectron spectroscopies, V.N. Strocov, T. Schmitt, U. Flechsig, T. Schmidt, A. Imhof, Q. Chen, J. Raabe, R. Betemps, D. Zimoch, J. Krempasky, X. Wang, M. Grioni, A. Piazzalunga, and L. Patthey, Journal of Synchrotron Radiation 17, 631-643, (2010).
  • Magnetic Excitations and Phase Separation in the Underdoped La2-xSrxCuO4 Superconductor Measured by Resonant Inelastic X-Ray Scattering, L. Braicovich, J. van den Brink, V. Bisogni, M. Moretti Sala, L. J. P. Ament, N. B. Brookes, G. M. De Luca, M. Salluzzo, T. Schmitt, V.N. Strocov, and G. Ghiringhelli, Phys. Rev. Lett. 104, 077002 (2010).
  • Evidence for core-hole-mediated inelastic x-ray scattering from metallic Fe1.087Te, J.N. Hancock, R. Viennois, D. van der Marel, H.M. Rønnow, M. Guarise, P.-H. Lin, M. Grioni, M. Moretti Sala, G. Ghiringhelli, V.N. Strocov, J. Schlappa, and T. Schmitt, Phys. Rev. B 82, 020513(R) (2010).
  • Collective Magnetic Excitations in the Spin Ladder Sr14Cu24O41 Measured Using High-Resolution Resonant Inelastic X-Ray Scattering, J. Schlappa, T. Schmitt, F. Vernay, V.N. Strocov, V. Ilakovac, B Thielemann, H.M. Ronnow, S. Vanishri, A. Piazzalunga, X. Wang, L. Braicovich, G. Ghiringhelli, C. Marin, J. Mesot, B. Delley, L. Patthey, Phys. Rev. Lett. 103, 4, 047401 (2009).
  • Observation of Two Nondispersive Magnetic Excitations in NiO by Resonant Inelastic Soft-X-Ray Scattering, G. Ghiringhelli, A. Piazzalunga, C. Dallera, T. Schmitt, V. N. Strocov, J. Schlappa, L. Patthey, X. Wang, H. Berger, and M. Grioni, Phys. Rev. Lett. 102, 027401 (2009).
  • Resonant Inelastic X-Ray Scattering at the Oxygen K Resonance of NiO: Nonlocal Charge Transfer and Double-Singlet Excitations, L.-C. Duda, T. Schmitt, M. Magnuson, J. Forsberg, A. Olsson, J. Nordgren, K. Okada, and A. Kotani, Phys. Rev. Lett. 96, 067402 (2006).
All publications at: http://www.researcherid.com/rid/A-7025-2010.

Awards / Prizes / Stipends / Fellowships

2004/2005 Göran Gustafsson postdoctoral fellowship
2004 Ångström Silver Medal for outstanding Ph.D. thesis
2002 and 2003 Liljewalchs travel scholarships for graduate researchers
1998/1999 Undergraduate stipend at the Max-Planck-Institute for Polymer Research in Mainz
1995/1996 Erasmus EU exchange program scholarship

Public outreach (selected examples)

Research featured in TV program: Horizon - How small is the Universe?, BBC, 5/09/2012, http://www.bbc.co.uk/iplayer/episode/b01mmrc0/horizon_20122013_How_Small_is_the_Universe/

Non-academic articles in newspapers or on the web:
  • Ein Elektron – zwei Wellen, Neue Züricher Zeitung (NZZ), 18/04/2012.
  • Elektronen mit multipler Persönlichkeit, Frankfurter Allgemeine Zeitung (FAZ), 30/04/2012.
  • Introducing the 'orbiton', physicsworld.com (IOP online), 18/04/2012.
  • Electron 'split-personality' seen in new quasi-particle, BBC News (online), 18/04/2012.

Memberships in Committees:

  • Since 2012: Member of the User Working Group for Beamline I21: Inelastic X-Ray Scattering (IXS) at Diamond Light Source, UK.
  • Since 2012: Member of the Beamline Advisory Team (BAT) for the Soft Inelastic X-ray Scattering (SIX) Beamline in the NSLS-II Experimental Tools (NEXT) project for the NSLS-II synchrotron radiation facility in the Photon Sciences Directorate at Brookhaven National Laboratory, USA.

Membership in professional societies:

  • German Physical Society
  • Swiss Physical Society