Magnetic Phase Diagrams and Spin Hamiltonian of Monoclinic alpha-RuCl 3 from Angle-Dependent Torque Studies
Researchers used highly sensitive torque measurements to map magnetic phase diagrams of very small monoclinic alpha-RuCl3 crystals. These measurements revealed that monoclinic samples have reduced rotational symmetry and require higher fields to destroy magnetic order compared to rhombohedral samples. The study successfully developed a minimal spin Hamiltonian that explains the complex field-dependent anomalies observed in the torque scans.