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Giant anisotropic magnetoresistance and planar Hall effect in the Dirac semimetal <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Cd</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>As</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>
Anisotropic magnetoresistance is the change tendency of resistance of a material on the mutual orientation of the electric current and the external magnetic field. Here, we report experimental observations in the Dirac semimetal ${\mathrm{Cd}}_{3}{\mathrm{As}}_{2}$ of giant anisotropic magnetoresistance and its transverse version, called the planar Hall effect. The relative anisotropic …