A d-wave altermagnet coupled to a p-wave superconductor induces gapless topological superconductivity with Majorana flat edge modes, nodal-line superconductivity, and a hybrid phase with coexisting dispersive and flat Majorana edge modes.
Chiral or unitary particle-hole symmetry is defined as the combination of anti-unitary PHS and TRS: C=PT=τ xsz ⋅τ 0isy =τ xsx
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Interplay between altermagnetism and topological superconductivity on an unconventional superconducting platform
A d-wave altermagnet coupled to a p-wave superconductor induces gapless topological superconductivity with Majorana flat edge modes, nodal-line superconductivity, and a hybrid phase with coexisting dispersive and flat Majorana edge modes.