THz ellipsometry and Optical Hall effect: Unraveling the electronic and transport properties of grap

Purpose and goal

Unique competence with the novel powerful spectroscopic techniques of THz frequency-domain ellipsometry and Optical Hall effect have been developed. A new collaboration with the world leading developer of spectroscopic ellipsometry technology, J. W. Woollam Co is established, and the collaboration with the Complex Materials Network at the University of Nebraska-Lincoln is further strengthened. The first THz ellipsometer in Europe was developed and a national facility The Terahertz Materials Analysis Center has been established.

Expected results and effects

New knowledge and expertise in unique techniques for characterizing material transport properties has been acquired and brought back to Sweden. The PI´s position as a research and academic leader was strengthened. Major advances in understanding and controlling transport properties of graphene and III-Nitride materials were realized, enhancing the research activities in material science at Linköping University and Sweden. The newly established THz Materials Analysis Center continues to attract scientific and industrial users and collaborators from Sweden and world-wide.

Planned approach and implementation

Via numerous exchange visits of researchers and graduate students to/from the foreign milieu a transfer of knowledge and know-how within the project was achieved. Currently, three senior researchers from the foreign milieu are employed in the PI’s group, one under a VINNMER incoming program. Two PhD students and two master students working within the project under the PI supervision have defended their theses at Linköping University. The PI also co-supervised a PhD student at the University of Nebraska-Lincoln.