Prof. Dr.-Ing.
Lead of projects A8, IRTG
Role within the Collaborative Research Centre
This project will collaborate closely on the sensor design with the technology groups in research area A as well as with the modeling activities in research area B.
A1 :Magnetostrictive material parameters and domain properties are obtained from A1 and calculations of stress distributions in magnetostrictive layers are compared to the experimental results in A1 .
A2 :Finite element method calculations of mechanical deformations provided to A2 .
A3 :Close collaboration concerning the design of resonant ME sensors. Material parameters and fabrication restrictions are obtained from A3 . Sensor layouts are provided to A3 . Experimental and theoretical results are compared to interpret and improve the sensor behavior. Tuning of the sensor frequency and quality factor are investigated jointly.
A4 :Close collaboration concerning the design of ΔE-effect ME sensors. Material parameters and fabrication restrictions are obtained from A4 . Sensor layouts are provided to A4 . Experimental and theoretical results are compared to interpret and improve the sensor behavior.
A5 , A6 :Finite element method calculations of mechanical deformations provided to A5 and A6 .
A7 :Sensor designs for electric modulation are provided to A7 . A comparison of experimental and theoretical results is employed to enhance the simulations method and provide better predictions.
B1 :Noise models developed in B1 will be integrated into the simulation software and SNR values for complex sensor geometries will be provided to B1 .
B3 :Jointly the effect of non-ideal, i.e., extended sensors with fabrication variations, on the solution of the inverse problem will be investigated.
B7 :Together with B7 also effects regarding caused by the sensor geometry will be investigated.
F1 “Modeling” . The project will also be active in the focus group F2 “Sensor Concepts” to discuss fabrication possibilities and provide sensor layout suggestions. This project will support the dissemination activities in project SOP and the doctoral researchers will be active in the IRTG .
A. Kittmann, P. Durdaut, S. Zabel, J. Reermann, J. Schmalz, B. Spetzler, D. Meyners, N. X. Sun, J. McCord, M. Gerken, G. Schmidt, M. Höft, R. Knöchel, F. Faupel, and E. Quandt: Wide Band Low Noise Love Wave Magnetic Field Sensor System ; Scientific Reports, vol. 8, no. 278, January 2018; http://dx.doi.org/10.1038/s41598-017-18441-4
Rasmus B. Holländer, Cai Müller, J. Schmalz, M. Gerken, J. McCord,“Magnetic domain walls as broadband spin wave and elastic magnetisation wave emitters ”, Sci. Rep., in press (2018).
J. Schmalz, A. Kittmann, P. Durdaut, B. Spetzler, F. Faupel, M. Höft, E. Quandt and M. Gerken "Comparison of the fundamental and higher order Love waves’ sensitivities in a SAW based magnetic field sensor ", SAW Symposium 2018, Dresden (2018)
S. B. Hrkac, C. T. Koops, M. Abes, C. Krywka, M. Müller, M. Burghammer, M. Sztucki, T. Dane, Kaps, Y. K. Mishra,R. Adelung, J. Schmalz, M. Gerken, E. Lage, C. Kirchhof, E. Quandt, O. M. Magnussen, and B. M. Murphy: Tunable Strain in Magnetoelectric ZnO Microrod Composite Interfaces ; ACS Appl. Mater. Interfaces, 2017, 9 (30), pp 25571–25577; DOI: 10.1021/acsami.6b15598
M. Krantz, M. Gerken and J. Schmalz, "Magnetoelectric cantilever theory: Effect of elastic seed and adhesion layers and multi-domain concepts on response of exchange bias multilayer sensors ", Euro Intelligent Materials 2017, Kiel (2017).
J. Schmalz, F. Faupel, M. Gerken, A. Kittmann, E. Quandt, E. Yarar and S. Zabel "Influence of a magnetostrictive layer on the mode shape and wave velocity of Love-wave based SAW-device ", Euro Intelligent Materials 2017, Kiel (2017).
J. L. Gugat, J. Schmalz, M. C. Krantz and M. Gerken: Magnetic Flux Concentration Effects in Cantilever Magnetoelectric Sensors , in IEEE Transactions on Magnetics, vol. 52, no. 5, pp. 1-8, May 2016; http://dx.doi.org/10.1109/TMAG.2015.2509948 .
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