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Dr. Hans Tornatzky

Scientist

+49 30 20377-302

tornatzky@pdi-berlin.de

Semiconductor Spectroscopy

Raum: 521

ORCID ID

Forschungsschwerpunkte

Novel Functional Oxide Materials , Magnetic Materials for Spintronics and Magnetoacoustics , 2D Materials

Projekte

Kompetenzen

Hans Tornatzky received his PhD in Physics from TU Berlin in 2019, where he investigated phononic and excitonic properties of two-dimensional semiconductors such as MoS₂. He subsequently held postdoctoral positions at FAU Erlangen-Nürnberg and INSA Toulouse, specializing in magneto-optical spectroscopy.

His current research focuses on 2D heterostructures and ultra-wide bandgap oxide materials, with particular expertise in Raman and photoluminescence (excitation) spectroscopy.

He is involved in the DFG Priority Programme SPP2244 2D Materials – Physics of van der Waals [hetero]structures and the Leibniz Collaborative Excellence initiative SiGOPE, which explores (Si, Ge, Sn)O₂-based ultra-wide bandgap semiconductors for power electronics.

Publikationen

  1. Titel

    Lattice dynamics in rutile germanium oxide (r-GeO2)

    Author
    H. Tornatzky, Z. Galazka, T. Schulz, R. Gillen, M. R. Wagner
    Quelle
    Adv. Electron. Mater., 12, e00586 (2026)
    DOI:
    10.1002/aelm.202500586 (PDI-ID: 3083)
  2. Titel

    Phonons in single‐domain κ‐Ga2O3 studied by polarization angle‐resolved Raman scattering

    Author
    A. Wüthrich, B. M. Janzen, R. Gillen, H. Tornatzky, A. Ardenghi, O. Bierwagen, A. Sacchi, P. Mazzolini, M. Ries, T. Ogawa, H. Nishinaka, M. R. Wagner
    Quelle
    Adv. Electron. Mater., 12, e00497 (2026)
    DOI:
    10.1002/aelm.202500497 (PDI-ID: 3146)
  3. Titel

    Nucleation and faceting in (001) r-GeO2 heteroepitaxy on r-TiO2 by metalorganic vapor phase epitaxy

    Author
    G. Cicconi, M. Bosi, F. Mezzadri, A. Ugolotti, I. Cora, L. Seravalli, H. Tornatzky, J. Lähnemann, M. R. Wagner, P. Bhatt, P. K. Thakur, T.-L. Lee, A. Regoutz, A. Baraldi, D. Bersani, L. Cademartiri, A. Parisini, B. Pécz, L. Miglio, R. Fornari, P. Mazzolini
    Quelle
    Appl. Surf. Sci., 725, 165788 (2025)
    DOI:
    10.1016/j.apsusc.2025.165788 (PDI-ID: 3140)
  4. Titel

    A programmable semiconductor containing active molecular photoswitches located in the crystal's volume phase

    Author
    O. Treske, Y. Krysiak, H. Tornatzky, M. R. Wagner, S. Polarz
    Quelle
    Adv. Funct. Mater., 36, e24426 (2025)
    DOI:
    10.1002/adfm.202524426 (PDI-ID: 3132)
  5. Titel

    Phonon dispersion in WS2

    Author
    M. Souliou, H. Tornatzky, R. Gillen, S. Kuffer, A. Michail, J. Parthenios, A. Bosak, L. Paolasini, J. Maultzsch, K. Papagelis
    Quelle
    2D Mater., 12, 045012 (2025)
    DOI:
    10.1088/2053-1583/adfe7d (PDI-ID: 3070)