Anisotropic magnetoresistance in altermagnetic MnTe
arxiv(2024)
摘要
Recently, MnTe was established as an altermagnetic material that hosts
spin-polarized electronic bands as well as anomalous transport effects like the
anomalous Hall effect. In addition to these effects arising from
altermagnetism, MnTe also hosts other magnetoresistance effects. Here, we study
the manipulation of the magnetic order by an applied magnetic field and its
impact on the electrical resistivity. In particular, we establish which
components of anisotropic magnetoresistance are present when the magnetic order
is rotated within the hexagonal basal plane. Our experimental results, which
are in agreement with our symmetry analysis of the magnetotransport components,
showcase the existence of an anisotropic magnetoresistance linked to both the
relative orientation of current and magnetic order, as well as crystal and
magnetic order.
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