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Articles by D. D. Khalyavin
Magnetic structure, excitations, and field-induced transitions in the honeycomb lattice compound ${\mathrm{Er}}_{2}{\mathrm{Si}}_{2}{\mathrm{O}}_{7}$
We investigate the magnetic properties of the monoclinic D-type Er2Si2O7 with a distorted honeycomb lattice using powder and single-crystal neutron scattering techniques, as well as single-crystal magnetization measurements. The powder neutron diffraction shows that below the ordering temperature, TN=1.85K, the compound forms a q=0 antiferromagnetic structure with four sublattices.
Magnetic structure of ${\mathrm{RuO}}_{2}$ in view of altermagnetism
The magnetic structure of RuO2 and the Ru atomic configuration are unknown. A magnetic structure is inferred by confronting measured and calculated Bragg diffraction patterns and adjusting the latter to achieve satisfactory agreement. An accepted pattern, a magnetic symmetry, includes symmetry of sites occupied by the magnetic ions.
Magnetic inhomogeneities in the quadruple perovskite manganite $[{\mathrm{Y}}_{2\ensuremath{-}x}{\mathrm{Mn}}_{x}]{\mathrm{Mn}}_{6}{\mathrm{O}}_{12}$
Abstract A combination of competing exchange interactions and substitutional disorder gives rise to magnetic inhomogeneities in the [Y2−xMnx]Mn6O12x=0.23 and 0.16 quadruple perovskite manganites.
Double-$Q$ ground state with topological charge stripes in the centrosymmetric skyrmion candidate ${\mathrm{GdRu}}_{2}{\mathrm{Si}}_{2}$
Abstract GdRu2Si2 is a centrosymmetric magnet in which a skyrmion lattice has recently been discovered. Here, we investigate the magnetic structure of the zero-field ground state using neutron diffraction on single crystal and polycrystalline GdRu1602Si2. In addition to observing the principal propagation vectors q1 and q2, we discover higher-order magnetic satellites, notably q1+2q2. The appearance of these satellites is explained within the framework of a double-Q constant-moment solution.
Hidden magnetic order on a kagome lattice for ${\mathrm{KV}}_{3}{\mathrm{Sb}}_{5}$
Abstract KV3Sb5 has recently attracted considerable attention due to its low-temperature superconducting properties, which are heralded by a charge-density wave. The apparent presence of a very weak magnetism does not result in long-range ordering. An explanation of the properties we present invokes higher-order terms in the vanadium magnetization density and a “hidden order” of Dirac (polar) multipoles.
Magnetic properties of ${\mathrm{RuO}}_{2}$ and charge-magnetic interference in Bragg diffraction of circularly polarized x-rays
COVID-19 has impacted many institutions and organizations around the world, disrupting the progress of research. Through this difficult time APS and the Physical Review editorial office are fully equipped and actively working to support researchers by continuing to carry out all editorial and peer-review functions and publish research in the journals as well as minimizing disruption to journal access.
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