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. 2021 Feb 2;33(12):2005521. doi: 10.1002/adma.202005521

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© 2021 The Authors. Advanced Materials published by Wiley‐VCH GmbH

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Angular‐dependent response of printed Py/Cu‐based GMR sensors. a) Schematics of the measurement setup revealing the rotation plane of the sensor with respect to the magnetic fields lines of an electromagnet. b) Comparison of the GMR performance between a thin film revealing GMR effect and printed GMR sensor with randomly oriented microflakes. The sensors are exposed to an in‐plane (0°) and out‐of‐plane (90°) magnetic field. c,d) Polar plots revealing the angular dependence of the GMR magnitude for a printed GMR sensor (orange curve) (c) and of the normalized sensor sensitivity for a thin film sensor (black curve) and printed GMR sensor (red curve) (d).