52 citations · 128 across the 8 of their papers we have counts for
8 papers
Spin triangle chain with ferromagnetic and antiferromagnetic interactions on the transition line
V. Ya. Krivnov, D. V. Dmitriev
We investigate spin- anisotropic model of a linear chain of triangles with competing ferro- and antiferromagnetic interactions and ferromagneic Heisenberg interactions…
Kagome-like chains with anisotropic ferromagnetic and antiferromagnetic interactions
D. V. Dmitriev, V. Ya. Krivnov
We consider a spin- kagome-like chain with competing ferro- and antiferromagnetic anisotropic exchange interactions. The ground state phase diagram of this model consi…
Ferrimagnetism in delta chain with anisotropic ferromagnetic and antiferromagnetic interactions
D. V. Dmitriev, V. Ya. Krivnov
We consider analytically and numerically an anisotropic spin- delta-chain (sawtooth chain) in which exchange interactions between apical and basal spins are ferromagne…
Delta chain with anisotropic ferromagnetic and antiferromagnetic interactions
D. V. Dmitriev, V. Ya. Krivnov
We consider analytically and numerically an anisotropic spin- delta-chain (sawtooth chain) with nearest-neighbor ferromagnetic and next-nearest-neighbor antiferromagne…
Delta chain with ferromagnetic and antiferromagnetic interactions at the critical point
V. Ya. Krivnov, D. V. Dmitriev, S. Nishimoto +2
We investigate the spin-1/2 Heisenberg model on the delta chain (sawtooth chain) with ferromagnetic nearest-neighbor and antiferromagnetic next-neighbor interactions. For a special…
Low-temperature properties of classical zigzag spin chain at the ferromagnet-helimagnet transition point
D. V. Dmitriev, V. Ya. Krivnov
Low-temperature thermodynamics of the classical frustrated ferromagnetic spin chain near the ferromagnet-helimagnet transition point is studied by means of mapping to the continuum…
Thermodynamics of classical frustrated spin chain at the ferromagnet-helimagnet transition point
D. V. Dmitriev, V. Ya. Krivnov
Low-temperature thermodynamics of the classical frustrated ferromagnetic spin chain is studied. Using transfer-matrix method we found the behavior of the correlation function and z…
Exactly solvable spin ladder model with degenerate ferromagnetic and singlet states
D. V. Dmitriev, V. Ya. Krivnov, A. A. Ovchinnikov
We study the spin ladder model with interactions between spins on neighboring rungs. The model Hamiltonian with the exact singlet ground state degenerated with ferromagnetic state…