Russian Academy of Sciences

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19922026

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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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468 papers · 1 filter

cond-mat.str-el2025

Effect of doping on the electronic structure, orbital-dependent renormalizations, and magnetic correlations in bilayer La $_{3}$ Ni $_{2}$ O $_{7}$

I. V. Leonov

Using the DFT+dynamical mean-field theory approach we study the effects of electronic correlations and doping on the normal state electronic structure of the double-layer nickelate…

cond-mat.str-el2025

First-Order Spin-Reorientation Transition and Incomplete Softening of the Antiferromagnetic Resonance Mode in Multiferroic GdFe $_{3}$ (BO $_{3}$ ) $_{4}$

I. N. Khoroshiy, S. A. Skorobogatov, S. E. Nikitin +3

The multiferroic ferroborate GdFe $_{3}$ (BO $_{3}$ ) $_{4}$ with huntite-type structure exhibits magnetic ordering below T $_{N}$ = 38 K and contains two magnetic subsystems associated with Gd…

cond-mat.str-el2025★ 1 cited

The Relevance of Non-axiality and Low-lying Excited States for Slow Magnetic Relaxation in Pentagonal-bipyramidal Erbium(III) Complexes Probed by High-frequency EPR

J. Arneth, L. Spillecke, C. Koo +3

High-frequency/high-field electron paramagnetic resonance studies on a series of seven-coordinate pentagonal-bipyramidal (PBP) erbium(III) complexes Er(DAPMBH/H $_{2}$ DAPS)X (H $_{2}$ DAP…

cond-mat.str-el2024

Interplay of electronic correlations and chemical bonding in FeN $_{2}$ under pressure

I. V. Leonov

We report a theoretical study of the effects of electronic correlations, magnetic properties, and chemical bonding in the recently synthesized high-pressure orthorhombic phase of F…

cond-mat.str-el2023★ 2 cited

Anisotropy stabilized magnetic phases of the triangular antiferromagnet RbFe(MoO $_{4}$ ) $_{2}$

Yu. A. Sakhratov, L. E. Svistov, A. P. Reyes

The magnetic H - T phase diagram of a quasi-two-dimensional easy plane antiferromagnet RbFe(MoO $_{4}$ ) $_{2}$ (S = 5/2) with an equilateral triangular lattice structure is studied with…

cond-mat.str-el2023★ 9 cited

Magnetic properties of half metal from the paramagnetic phase: DFT+DMFT study of exchange interactions in CrO $_{2}$

A. A. Katanin

We study magnetic properties of CrO $_{2}$ within the density functional theory plus dynamical mean-field theory (DFT+DMFT) approach in the paramagnetic phase. We consider the 3-orbit…

cond-mat.str-el2023★ 5 cited

Proximity-induced sequence of field transitions in Kitaev candidate BaCo $_{2}$ (AsO $_{4}$ ) $_{2}$

Pavel A. Maksimov

We study field-induced phase transitions of the minimal exchange model proposed earlier for BaCo $_{2}$ (AsO $_{4}$ ) $_{2}$ , a candidate for Kitaev honeycomb model, using numerical minimizat…

cond-mat.str-el2023★ 1 cited

Magnetic resonance in the quasi-2D square lattice easy-plane antiferromagnet Ba $_{2}$ MnGe $_{2}$ O $_{7}$

V. N. Glazkov, Yu. V. Krasnikova, I. K. Rodygina +2

We report results of a multi-frequency (0.8-60 GHz) electron spin resonance study of the spin dynamics in the quasi-2D square lattice antiferromagnet Ba $_{2}$ MnGe $_{2}$ O $_{7}$ both in an…

cond-mat.str-el2022★ 7 cited

Microscopic spin Hamiltonian for a dipolar-Heisenberg magnet LiGdF4 from EPR measurements

S. S. Sosin, A. F. Iafarova, I. V. Romanova +5

Low-temperature electron paramagnetic resonance measurements are performed on single crystals of LiY_{1-x}Gd_xF_4 with weak x=0.005 and moderate x=0.05 concentration of Gd ions. Mo…

cond-mat.str-el2022★ 27 cited

Magnetic phase diagram and possible Kitaev-like behavior of honeycomb-lattice antimonate Na3Co2SbO6

E. Vavilova, T. Vasilchikova, A. Vasiliev +4

Recent theoretical studies have suggested that Kitaev physics and such effects as formation of a mysterious spin-liquid state can be expected not only in RuCl3 and iridates, but al…

cond-mat.str-el2022★ 11 cited

Evidence of electronic phase separation in the strongly correlated semiconductor YbB12

A. Azarevich, N. Bolotina, O. Khrykina +9

The studies of high-quality single-domain crystals of YbB12 were carried out by the precise x-ray diffraction technique in combination with the low temperature polarized THz - infr…

cond-mat.str-el2021★ 1 cited

Dynamics of the multiferroic LiCuVO4 influenced by electric field

S. K. Gotovko, V. I. Marchenko, A. Prokofiev +1

We present the electron spin resonance study of the influence of an electric field on the low-field multiferroic magnetic state in LiCuVO4. The shift of the magnetic resonance spec…

cond-mat.str-el2021★ 52 cited

Electronic phase separation: recent progress in the old problem

M. Yu. Kagan, K. I. Kugel, A. L. Rakhmanov

We consider the nanoscale electronic phase separation in a wide class of different materials, mostly in strongly correlated electron systems. The phase separation turns out to be q…

cond-mat.str-el2020★ 63 cited

Novel Strongly Correlated Europium Superhydrides

Dmitrii V. Semenok, Di Zhou, Alexander G. Kvashnin +11

We conducted a joint experimental-theoretical investigation of the high-pressure chemistry of europium polyhydrides at pressures of 86-130 GPa. We discovered several novel magnetic…

cond-mat.str-el2020★ 2 cited

Antiferromagnetic resonance in a spin-gap magnet with strong single-ion anisotropy

V. N. Glazkov

Quasi-one-dimensional magnet NiCl $_{2} \cdot$ 4SC(NH $_{2}$ ) $_{2}$ , usually abbreviated as DTN, does not order at zero field down to $T = 0$ : due to the strong single-ion anisotropy of the "e…

cond-mat.str-el2020★ 8 cited

Lattice dynamics in the double-helix antiferromagnet FeP

A. S. Sukhanov, S. E. Nikitin, M. S. Pavlovskii +10

We present a comprehensive investigation of lattice dynamics in the double-helix antiferromagnet FeP by means of high-resolution time-of-flight neutron spectroscopy and ab-initio c…

cond-mat.str-el2020★ 3 cited

Magnetic resonance of collective paramagnets with gapped excitations spectrum

V. N. Glazkov

Some magnets due to particular geometry of the exchange bonds do not undergo transition to the conventional magnetically ordered state despite of the presence of significant exchan…

cond-mat.str-el2020★ 27 cited

Spin density wave and electron nematicity in magic-angle twisted bilayer graphene

A. O. Sboychakov, A. V. Rozhkov, A. L. Rakhmanov +1

We study theoretically many-body properties of magic-angle twisted bilayer graphene for different doping levels. Our investigation is focused on the emergence, stability, and manif…

cond-mat.str-el2020★ 5 cited

Spectral characteristics of the antiferromagnetic spin-1/2 Heisenberg model on the square lattice in a magnetic field

P. S. Savchenkov, A. F. Barabanov

We predict that spin-waves in an ordered square quantum antiferromagnet in a transverse magnetic field (h) may demonstrate three modes of spin excitations. Starting from the self-c…

cond-mat.str-el2020★ 4 cited

Dualism of the 4f electrons and high-temperature antiferromagnetism of the heavy-fermion compound YbCoC $_{2}$

D. A. Salamatin, N. Martin, V. A. Sidorov +9

We report on the first study of the noncentrosymmetric ternary carbide YbCoC $_{2}$ . Our magnetization, specific heat, resistivity and neutron diffraction measurements consistently…

cond-mat.str-el2020★ 99 cited

Lifshitz transition and frustration of magnetic moments in infinite-layer NdNiO $_{2}$ upon hole-doping

I. Leonov, S. L. Skornyakov, S. Y. Savrasov

Motivated by the recent discovery of superconductivity in the infinite-layer (Sr,Nd)NiO $_{2}$ films with Sr content $x ≃ 0.2$ [Li et al., Nature (London) \textbf{572}, 624 (2019)…

cond-mat.str-el2020★ 9 cited

Electronic correlation effects and local magnetic moments in L1 $_{0}$ phase of FeNi

A. S. Belozerov, A. A. Katanin, V. I. Anisimov

We study the electronic and magnetic properties of L1 $_{0}$ phase of FeNi, a perspective rare-earth-free permanent magnet, by using a combination of density functional and dynamical…

cond-mat.str-el2020★ 8 cited

Dynamical spin susceptibility of spin-valley half-metal

D. A. Khokhlov, A. L. Rakhmanov, A. V. Rozhkov +1

A few years ago we predicted theoretically that in systems with nesting of the Fermi surface the spin-valley half-metal has lower energy than the spin density wave state. In this p…

cond-mat.str-el2020★ 8 cited

Magnetic fluctuations and superconducting pairing in $ε$ -iron

A. S. Belozerov, A. A. Katanin, V. Yu. Irkhin +1

We study Coulomb correlation effects and their role in superconductivity of $ε$ -iron under pressure from 12 to 33 GPa by using a combination of density functional and dyn…

Effect of doping on the electronic structure, orbital-dependent renormalizations, and magnetic correlations in bilayer La3​Ni2​O7​

First-Order Spin-Reorientation Transition and Incomplete Softening of the Antiferromagnetic Resonance Mode in Multiferroic GdFe3​(BO3​)4​

The Relevance of Non-axiality and Low-lying Excited States for Slow Magnetic Relaxation in Pentagonal-bipyramidal Erbium(III) Complexes Probed by High-frequency EPR

Interplay of electronic correlations and chemical bonding in FeN2​ under pressure

Anisotropy stabilized magnetic phases of the triangular antiferromagnet RbFe(MoO4​)2​

Magnetic properties of half metal from the paramagnetic phase: DFT+DMFT study of exchange interactions in CrO2​

Proximity-induced sequence of field transitions in Kitaev candidate BaCo2​(AsO4​)2​

Magnetic resonance in the quasi-2D square lattice easy-plane antiferromagnet Ba2​MnGe2​O7​

Microscopic spin Hamiltonian for a dipolar-Heisenberg magnet LiGdF4 from EPR measurements

Magnetic phase diagram and possible Kitaev-like behavior of honeycomb-lattice antimonate Na3Co2SbO6

Evidence of electronic phase separation in the strongly correlated semiconductor YbB12

Dynamics of the multiferroic LiCuVO4 influenced by electric field

Electronic phase separation: recent progress in the old problem

Novel Strongly Correlated Europium Superhydrides

Antiferromagnetic resonance in a spin-gap magnet with strong single-ion anisotropy

Lattice dynamics in the double-helix antiferromagnet FeP

Magnetic resonance of collective paramagnets with gapped excitations spectrum

Spin density wave and electron nematicity in magic-angle twisted bilayer graphene

Spectral characteristics of the antiferromagnetic spin-1/2 Heisenberg model on the square lattice in a magnetic field

Dualism of the 4f electrons and high-temperature antiferromagnetism of the heavy-fermion compound YbCoC2​

Lifshitz transition and frustration of magnetic moments in infinite-layer NdNiO2​ upon hole-doping

Electronic correlation effects and local magnetic moments in L10​ phase of FeNi

Dynamical spin susceptibility of spin-valley half-metal

Magnetic fluctuations and superconducting pairing in ε-iron

Effect of doping on the electronic structure, orbital-dependent renormalizations, and magnetic correlations in bilayer La $_{3}$ Ni $_{2}$ O $_{7}$

First-Order Spin-Reorientation Transition and Incomplete Softening of the Antiferromagnetic Resonance Mode in Multiferroic GdFe $_{3}$ (BO $_{3}$ ) $_{4}$

Interplay of electronic correlations and chemical bonding in FeN $_{2}$ under pressure

Anisotropy stabilized magnetic phases of the triangular antiferromagnet RbFe(MoO $_{4}$ ) $_{2}$

Magnetic properties of half metal from the paramagnetic phase: DFT+DMFT study of exchange interactions in CrO $_{2}$

Proximity-induced sequence of field transitions in Kitaev candidate BaCo $_{2}$ (AsO $_{4}$ ) $_{2}$

Magnetic resonance in the quasi-2D square lattice easy-plane antiferromagnet Ba $_{2}$ MnGe $_{2}$ O $_{7}$

Dualism of the 4f electrons and high-temperature antiferromagnetism of the heavy-fermion compound YbCoC $_{2}$

Lifshitz transition and frustration of magnetic moments in infinite-layer NdNiO $_{2}$ upon hole-doping

Electronic correlation effects and local magnetic moments in L1 $_{0}$ phase of FeNi

Magnetic fluctuations and superconducting pairing in $ε$ -iron