Nonlinear Hall Effect as a Signature of Electronic Phase Separation in the Semimetallic Ferromagnet<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>EuB</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:math>
Physical review letters