AI Article Synopsis
- The study examines the magnetic field changes in a stacked planar triangular antiferromagnet using a 3D classical Heisenberg model, focusing on interlayer interactions and spin fluctuations.
- The inclusion of single ion anisotropy reveals new magnetic states under different configurations of applied magnetic fields in both the ab plane and c axis.
- As interlayer interactions increase, certain magnetic states disappear while other unique states manifest, particularly when comparing 3D behavior to earlier 2D models.
Article Abstract
The magnetic field evolution of ground spin states of the stacked planar triangular antiferromagnet with antiferromagnetic interlayer interaction J is explored using a minimal 3D classical Heisenberg model. A bi-quadratic coupling is also used to mimic the effect of spin fluctuations (Zhitomirsky 2015 J. Phys.: Conf. Ser. 592 012110) which are known to stabilize the magnetization plateau. A single ion anisotropy is included and states with a magnetic field applied in the ab plane and along the c axis are determined. For [Formula: see text]-plane, an additional new state, in contrast to 2D model (Zhitomirsky 2015 J. Phys.: Conf. Ser. 592 012110), is obtained with weak interlayer interaction, while the magnetization plateau vanishes at large J and other new states with z components of spins emerge. For [Formula: see text]-axis, an extra state, compared with 2D model, is obtained with a weak interlayer interaction. When J is large enough, only the state corresponding to the Umbrella phase in 2D model exits.
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