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cond-mat.str-el2025
Spin-singlet dimer phase in a frustrated square lattice under a magnetic field
L. M. Ramos, M. Schmidt, F. M. Zimmer
We investigated the isotropic spin-1/2 Heisenberg model on an anisotropic square lattice with competing exchange interactions, motivated by the unconventional magnetic behavior obs…
cond-mat.stat-mech2025
The correlated cluster mean-field approach to the frustrated Ising model on the honeycomb lattice
Carlos H. D. Batista, M. Schmidt, F. M. Zimmer
We study the - Ising model on the honeycomb lattice, considering ferromagnetic interactions between first neighbors () and antiferromagnetic interactions between sec…
cond-mat.str-el2025★ 3 cited
Interplay of frustration and quantum fluctuations in a spin-1/2 anisotropic square lattice
L. M. Ramos, F. M. Zimmer, M. Schmidt
Motivated by theoretical and experimental studies reported by Yamaguchi et al. (Phys. Rev. B 98, 094402 (2018)), we performed a cluster mean-field analysis of an anisotropic Heisen…