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cond-mat.str-el2025★ 2 cited
Quantum fluctuations in two-dimensional altermagnets
Niklas Cichutek, Peter Kopietz, Andreas Rückriegel
The magnetic properties of two-dimensional altermagnets can be obtained from a square lattice Heisenberg model with antiferromagetic nearest neighbor interaction and two types of n…
cond-mat.str-el2025★ 8 cited
Spontaneous magnon decay in two-dimensional altermagnets
Niklas Cichutek, Peter Kopietz, Andreas Rückriegel
We show that magnons in two-dimensional altermagnets can spontaneously decay at zero temperature. The decay rate is determined by quantum fluctuations and scattering processes invo…