31 citations · 160 across the 39 of their papers we have counts for
11 papers · 1 filter
The classical-quantum disproportionation transition and magnetic ordering in RNiO nickelates
A. S. Moskvin, Yu. D. Panov
The insulator-quasi-metal (bad metal) transition observed in Jahn-Teller (JT) magnets orthonickelates RNiO (R = rare earth, or yttrium Y) is considered a canonical example of t…
Topological structures in unconventional scenario for 2D cuprates
A. S. Moskvin, Yu. D. Panov
We introduce a minimal model to describe the charge degree of freedom in cuprates with the on-site Hilbert space reduced to only the three valence states CuO (nomina…
Competition between the Spin and Pseudospin Subsystems in a Model Cuprate
Yu. D. Panov, V. A. Ulitko, K. S. Budrin +2
The competition between the magnetic and charge orderings in a model cuprate is considered in terms of a simplified static 2D spin-pseudospin model. This model is equivalent to the…
Features of the Domain Boundaries of a Highly Anisotropic (S = 1) Antiferromagnet near the Transition to the Quantum Paramagnet Phase
V. V. Konev, V. A. Ulitko, D. N. Yasinskaya +2
It is shown that the structure of antiphase domain boundaries in the antiferromagnetic (AFM) phase of a highly anisotropic magnet with S = 1 on a two-dimensional square lattice dep…
Monte Carlo simulation of a model cuprate
Yu. D. Panov, A. S. Moskvin, A. A. Chikov +1
We develop a classical Monte Carlo algorithm based on a quasi-classical approximation for a pseudospin S=1 Hamiltonian in real space to construct a phase diagram of a model cuprate…
Critical temperatures of a model cuprate
Yu. D. Panov
The problem of competing orderings in the high-temperature cuprate materials is widely discussed for the last years. We present the mean-field approximation results for the spin-ps…
Nonrelativistic Multiferroicity in the Nonstoichiometric Spin s=1/2 Spiral Chain Cuprate LiCu2O2
A. S. Moskvin, Yu. D. Panov, S. -L. Drechsler
We argue for a recently observed puzzling multiferroic behavior in s=1/2 1D chain cuprate LiCu2O2 with edge-shared arrangement of CuO4 plaquettes and incommensurate spiral spin ord…
Nanoscopic stripe-like inhomogeneities and optical conductivity of doped cuprates
A. S. Moskvin, E. V. Zenkov, Yu. D. Panov
We propose a new approach to theoretical description of doped cuprate like and , assuming phase separation and treating it as inhomogeneous…
Origin of Magnetoresistance Anomalies in Antiferromagnetic YBa_{2}Cu_{3}O_{6+x}
A. S. Moskvin, Yu. D. Panov
Specific d-wave angular dependence of the in-plane magnetoresistence in antiferromagnetic tetragonal YBa_{2}Cu_{3}O_{6+x} (x~0.3) on orientation of the external magnetic field in (…
Non-rigid shell model and novel correlational effects in atomic and molecular systems
Yu. D. Panov, A. S. Moskvin
Direct analytical and numerical calculation show that two-electron atomic configuration can be unstable with respect to a static or dynamic shift of the electron shells. This enabl…
Non-rigid Shell Model and Correlational Mechanism of the Local Pairing
A. S. Moskvin, V. A. Korotaev, Yu. D. Panov +1
The Hartree-Fock states of the many-electron atomic system can be unstable with respect to a static or dynamic shift of the electron shells. An appropriate non-rigid shell model fo…