Temperature dependence of sublattice magnetization in quasi-two-dimensionalS=12cuprate antiferromagnets: Green’s function approach

Effects of Frustration and Dzyaloshinskii–Moriya Interaction on the Spin‐1/2 Anisotropic Heisenberg Antiferromagnet with the Application to La2CuO4

“…The intention to thoroughly analyze the influence of in‐plane frustration on the magnetic properties of the system is corroborated by the fact that frustration is strongly pronounced in 2D quantum magnets, [ 17,18 ] though it is often not taken into account. [ 5,6,8 ] Our earlier results [ 19–22 ] also suggest that the model with the NNN interaction gives predictions in better agreement with the experimental data. Besides the aforementioned, the choice of the dominant interactions is supported by the fact that these interactions, especially NN, NNN, and DM interaction, but also spin anisotropy to a lesser extent, show a distinctive pressure dependence, [ 23,24 ] enabling one to affect the phase transition temperature by applying high pressures on the system.…”

Anisotropy Influence on the Striped Antiferromagnetism of a Frustrated Heisenberg Model: An Application to Iron Pnictide Materials

“…For an application of GFs technique on Heisenberg AFMs, please see the references [51][52][53][54][55][56][57]. Retarded two-time GF [45] is defined as follows:…”

Magnon–magnon interactions in O(3) ferromagnets and equations of motion for spin operators

“…We stress that the reduction of magnon-magnon interactions is is crucial for thermodynamics of O(3) ferromagnets, for spurious terms in low-temperature series for free energy are present whether or not the constrain v 0 p n p 0 p 2 = 0 is implemented [66]. As noted in the Introduction, RPA is widely used tool for studying magnetic systems [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][31][32][33][34][35][36][37][38][39][40][41][42]. Thus, to be able to correctly interpret results obtained from RPA, it is of interest to fully grasp the approximation in itself.…”