Regensburg 2013 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 17: Magnetic Particles and Clusters (jointly with CPP, BP)
MA 17.2: Vortrag
Dienstag, 12. März 2013, 10:15–10:30, H22
Printable giant magnetoresistive devices — •Daniil Karnaushenko1,2, Denys Makarov1, Chenglin Yan1, Robert Streubel1,2, and Oliver G. Schmidt1,2 — 1Institute for Integrative Nanosciences IFW Dresden, Helmholtzstraße 20, Dresden, 01069 Germany — 2Material Systems for Nanoelectronics Chemnitz University of Technology, Straße der Nationen 62, Chemnitz, 09107 Germany
The rise of printable electronics is mainly indebted to huge efforts in materials science to fabricate cost-efficient versatile electronic building blocks such as transistors, diodes and resistors. However, the fabrication of printable electronic sensors and contactless switches operating in combination with magnetic fields remains challenging, mainly due to the lack of appropriate sensing compounds at ambient conditions. The printable magnetic sensor would act as a contactless switch in a complex printed electronic circuit. For this purpose, magnetic sensors with high sensitivity operating at room temperature have to be developed as inks, pastes or paints. Here, we demonstrate the first printable magnetic sensor that relies on the GMR effect. The developed multicomponent magnetic ink containing GMR flakes and nonconductive binder can be easily applied on various substrates, such as paper, polymer and ceramic. The fabricated sensor exhibits a room-temperature GMR of up to 8%, which is sufficiently high to develop a complete printed electronic circuit that is able to respond to an external magnetic field, opening new application fields in the modern electronics.