Group leader

Komarek, Alexander
Alexander Komarek
Group leader
Phone: +49 351 4646-4423
Fax: +49 351 4646-4902


Guo, Hanjie
Hanjie Guo
Post-doctoral research scientist
Phone: +49 351 4646-4419
Fax: +49 351 4646-4902
Melendez, Anna
Anna Melendez
student research assistant
Phone: +49 351 4646-4431
Fax: +49 351 4646-4902
Ryu, Gihun
Gihun Ryu
Post-doctoral research scientist
Phone: +49 351 4646-4473
Fax: +49 351 4646-4902
Zhang, Lunyong
Lunyong Zhang
Post-doctoral research scientist
Phone: +49 351 4646-4428
Fax: +49 351 4646-4902
Zhao, Li
Li Zhao
Post-doctoral research scientist
Fax: +49 351 4646-4902

Single crystal Growth and Characterization

Dr. Alexander Komarek

Tel: +49 (0)351 4646-4423
Fax: +49 (0)351 4646-xxxx
E-Mail:   Komarek[at]

Research fields:

  • neutron scattering
  • X-ray scattering
  • electronic and magnetic properties
  • single crystal synthesis front of the reactor in Grenoble (France)
     (left to right) Dr. J. Yang, Dr. Z. Li, Y. Drees and
     Dr. A. C. Komarek.

...altogether in the furnace lab Zoom Image
...altogether in the furnace lab

Press releases

Selected Publications:

  • Antiferromagnetic correlations in the metallic strongly correlated transition metal oxide LaNiO3
    Guo H., Li Z. W., Zhao L., Hu Z., Chang C. F., Kuo C.-Y., Schmidt W., Piovano A., Pi T. W., Sobolev O., Khomskii D. I., Tjeng L. H. and Komarek A. C.
    Nature Commun. 9 (2018) 43.

  • Oxyhalides: A new class of high-TC multiferroic materials
    Zhao L., Fernández-Díaz M.T., Tjeng L.H. and Komarek A. C.
    Science Advances 2 (2016) e1600353.

  • Hour-glass magnetic excitations induced by nanoscopic phase separation in cobalt oxides
    Drees Y., Li Z. W., Ricci A., Rotter M., Schmidt W., Lamago D., Sobolev O., Rütt U., Gutowski O., Sprung M., Piovano A., J.P. Castellan J. P., and Komarek A. C.
    Nature Commun. 5 (2014) 5731.

  • k=0 Magnetic Structure and Absence of Ferroelectricity in SmFeO3
    Kuo C.-Y., Drees Y., Fernández-Dáz M.T., Zhao L., Vasylechko L., Sheptyakov D., Bell A. M. T., Pi T. W., Lin H.-J., Wu M.-K., Pellegrin E., Valvidares S. M., Li Z. W., Adler P., Todorova A., Küchler R., Steppke A., Tjeng L. H., Hu Z. and Komarek A. C.
    Phys. Rev. Lett. 113 (2014) 217203. 

  • Hour-glass magnetic spectrum in a stripeless insulating transition metal oxide
    Drees Y., Lamago D., Piovano A., and Komarek A. C.
    Nature Commun. 4 (2013) 2449.

  • Charge stripe order near the surface of 12-percent doped La2-xSrxCuO4
    Wu H.-H, Buchholz M., Trabant C., Chang C. F., Komarek A. C., Heigl F., v. Zimmermann M., Cwik M., Nakamura F., Braden M., Schüßler-Langeheine C.
    Nature Commun. 3 (2012) 1023.

Instrumentation & Methods:

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