The field of spintronics has seen a surge of interest in altermagnetism due to novel
predictions and many possible applications. MnTe is a leading altermagnetic candidate that
is of significant interest across spintronics due to its layered antiferromagnetic structure, high
Neel temperature (TN≈ 310 K) and semiconducting properties. The results on molecular
beam epitaxy (MBE) grown MnTe/InP (111) films are presented. Here, it is found that the
electronic and magnetic properties are driven by the natural stoichiometry of MnTe …

The strong spin-moment coupling predicted for altermagnets may have profound
implications for new electronic applications. In article number 2405829, Matthew Brahlek
and co-workers use a variety of probes to demonstrate that the room-temperature
altermagnetic candidate MnTe exhibits competing antiferromagnetic and ferromagnetic
orders and identifies their origins. This finding will enable tailoring magnetic properties to
test fundamental properties and push forward future spintronic applications.