An all-electrical torque differential magnetometer operating under ambient conditions Akashdeep Kamra, Stefan von Hoesslin, Niklas Roschewsky, Johannes Lotze, Michael Schreier, Rudolf Gross, Sebastian T.B. Goennenwein and Hans Huebl Eur. Phys. J. B, 88 9 (2015) 224 Published online: 09 September 2015 DOI: 10.1140/epjb/e2015-60380-2