The Reorientation Temperature in an Antiferromagnetic Monolayer |
| V. Ilkovič a and J. Kecer b
aInstitute of Physics, Faculty of Science, P.J. Šafarik University, Jesenná 5, 040 01 Košice, Slovak Republic bDepartment of Physics, Technical University, Park Komenského 2, 040 01 Košice, Slovak Republic |
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| The reorientation temperature in an antiferromagnetic square lattice is studied within the framework of many-body Green function theory. The model Hamiltonian includes a Heisenberg term, second-order single-ion anisotropy, and a transverse external magnetic field in the x-direction. We investigate the orientation temperature as a function of the single-ion anisotropy parameter and for different transverse magnetic fields. |
| DOI: 10.12693/APhysPolA.118.854 PACS numbers: 75.10.Jm, 75.30.Ds, 75.30.Kz, 75.70.Ak |