Contact
Prof. Heidemarie Schmidt
Email:heidemarie.schmidt@enas.fraunhofer.de
Research Field and Activities
Prof. Heidemarie Schmidt is a graduate physicist. Since 2017 she is heading the Quantum Detection Department at Leibniz-IPHT and the Solid State Physics group with a focus on quantum detection at the FSU Jena. Prof. Schmidt is a recognized expert in the development and manufacture of electroforming-free memristors. On the one hand, there is the bipolar analog BiFeO3 memristor for robust, sensor-related processing of analog data (Edge Computing), for setting up certifiable and trainable neural networks (IoT, Industry 4.0) and for PUF crypto elements (trustworthy electronics). On the other hand, there is the unipolar, digital YMnO3 memristor for RNG crypto elements (trustworthy electronics). Prof. Schmidt is building up a portfolio of basic and application patents for electroforming-free memristors (2011-2016 at HZDR, since 2016 at FhI ENAS). The BiFeO3 memristor has all the characteristics of an ideal, analog memristor.
Publications
“Room temperature ferromagnetism in ZnO films due to defects”
Co-authors: Q. Xu, S. Zhou, K. Potzger, M. Helm, H. Hochmuth, M. Lorenz, M. Grundmann, H. Schmidt
Published in: Applied Physics Letters, 2008
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“Plasticity in memristive devices for spiking neural networks”
Co-authors: S. Saïghi, C. G. Mayr, T. Serrano-Gotarredona, G. Lecerf, J. Tomas, T. Masquelier, T. Prodromakis, H. Schmidt, R. Tetzlaff, B. Linares-Barranco
Published in: Frontiers in Neuroscience, 2015
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“Room temperature ferromagnetism in carbon-implanted ZnO”
Co-authors: S. Zhou, Q. Xu, K. Potzger, G. Talut, R. Grötzschel, J. Fassbender, M. Helm, H. Schmidt
Published in: Applied Physics Letters, 2008
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“Origin of magnetic moments in defective single crystals”
Co-authors: S. Zhou, E. Čižmár, K. Potzger, M. Krause, G. Talut, M. Helm, J. Fassbender, H. Hochmuth, M. Lorenz, M. Grundmann, H. Schmidt
Published in: Physical Review B, 2009
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“Band-structure pseudopotential calculation of zinc-blende and wurtzite AlN, GaN, and InN”
Co-authors: D. Fritsch, H. Schmidt, M. Grundmann
Published in: Physical Review B, 2003
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“Defects in virgin and -implanted ZnO single crystals studied by positron annihilation, Hall effect, and deep-level transient spectroscopy”
Co-authors: G. Brauer, W. Anwand, W. Skorupa, J. Kuriplach, O. Melikhova, C. Moisson, H. Schmidt
Published in: Physical Review B, 2006
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“Nonvolatile bipolar resistive switching in Au/BiFeO3/Pt”
Co-authors: Y. Shuai, S. Zhou, D. Bürger, M. Helm, H. Schmidt
Published in: Journal of Applied Physics, 2011
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“Exploiting Memristive BiFeO₃ Bilayer Structures for Compact Sequential Logics”
Co-authors: T. You, Y. Shuai, W. Luo, N. Du, D. Bürger, I. Skorupa, R. Hübner, S. Henker, H. Schmidt, O. G. Schmidt, T. Mikolajick, S. Slesazeck
Published in: Advanced Functional Materials, 2014
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“Decisive role of oxygen vacancy in ferroelectric versus ferromagnetic Mn-doped BaTiO₃ thin films”
Co-authors: Y. Shuai, S. Zhou, D. Bürger, H. Reuther, I. Skorupa, V. John, M. Helm, H. Schmidt
Published in: Journal of Applied Physics, 2011
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“Band dispersion relations of zinc-blende and wurtzite InN”
Co-authors: D. Fritsch, H. Schmidt, M. Grundmann
Published in: Physical Review B, 2004