Prof. Dr. Heidemarie Schmidt is Professor for Solid State Physics and Quantum Detection at the Institute of Solid State Physics and and Head of the Research Department Quantum Detection at the Leibniz-IPHT, Jena, since 2017.
Magnetic oxide thin films with bound magnetic polarons (BMP) for transparent spintronics: We have fabricated magnetic, n-type conducting ZnO thin films and controlled the formation of BMP with huge collective spins by means of a structured metallization of the ZnO surface. The transport properties [DE102013209278B4] depend on concentration and species of magnetic ions and intrinsic defects . Increased static dielectric constant  has been shown for magnetic ZnO thin films with BMP.
Multilayer structures in magnetic thin films for magnetooptics: We have set-up a vector magnetooptical generalized ellipsometer (VMOGE) with an octupole magnet  and examined the magnetooptical response of multilayer structures with magnetic thin films. We have developed the 4×4 Mueller matrix method to extract the magnetooptical dielectric constant from the magnetic thin films. For magnetic metals (Fe, Co, Ni, Ni20Fe80 , Ni80Fe20, Co90Fe10, Co40Fe40B20) the extracted magnetooptical constants can be related with the results of spin DFT calculations.
AI hardware for Neuromorphic computing, Sensor-near data analysis, and Trusted Electronics: Multiferroic thin film materials, e.g. BiFeO3  and YMnO3 , with top electrode and bottom electrode are well-known as memristors, where the resistance state can by reconfigured into high resistance state (HRS) and low resistance state (LRS) by applying an appropriate voltage bias to or pushing an appropriate current through the memristor. We have analyzed the physical mechanism underlying the non-volatile resistive switching in BiFeO3 and YMnO3 memristors and have developed them into a novel AI hardware element.
Charged silicon for use as electrostatic carriers and impedance biochips in biotechnology:Surface-near electrostatic forces above charged silicon have been measured using Kelvin Probe Force Microscopy (KPFM) and modelled using a model developed for the interpretation of KPFM data recorded on doped semiconductors . Doped silicon is potentially useful as an electrostatic carrier in bioreactors, in implants, and in impedance biochips for cell counting .
 Kaspar et al., IEEE Elect. Dev. Lett. 34, 12711273 (2013).
 Vegesna et al., Sci. Rep. 10, 6698 (2020).
 Mok et al., Rev. Sci. Instrum. 82, 033112 (2011).
 Patra et al. J. Phys. D: Appl. Phys. 52, 485002 (2019).
 Shuai et al., J. Appl. Phys. 109, 124117 (2011).
 V. R. Rayapati et al., Nanotechnology 31, 31LT01 (2020).
 Baumgart et al., Phys. Rev. B 80, 085305 (2009).
 Kiani et al., Biosensors 10, 82 (2020).