2014/08/28 by Aslam Parvej, Parvej, Aslam, Manoranjan Kumar +1
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Magnetism in coordination complexes #Quantum many-body systems #Strongly Correlated Electrons (cond-mat.str-el) #Theoretical and Computational Physics #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.1408.6629
7 Pages and 8 figures
arxiv created 2014/08/28 · openalex publication_date 2014/08/28 · arxiv updated 2014/08/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The frustrated isotropic J1-J2 model with ferromagnetic J1 and anti-ferromagnetic J2 interactions in presence of an axial magnetic field shows many exotic phases, such as vector chiral and multipolar phases. The existing studies of the phase boundaries of these systems are based on the indirect evidences such as correlation functions \it etc. In this paper, the phase boundaries of these exotic phases are calculated based on order parameters and jumps in the magnetization. In the strong magnetic field, Z2 symmetry is broken, therefore, order parameter of the vector chiral phase is calculated using the broken symmetry states. Our results obtained using the modified density matrix renormalization group and exact diagonalization methods, suggest that the vector chiral phase exist only in narrow range of parameter space J2/J1.