55 citations · 473 across the 65 of their papers we have counts for
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Kagome lattice candidate URhSn: Measured Bragg diffraction patterns and theory for hexagonal and trigonal Sohncke phases
S. W. Lovesey, D. D. Khalyavin
Ternary intermetallics use a ZrNiAl-type chemical structure known as a kagome system. Complexity observed in the phase diagrams of these compounds is attributed to the geometric fr…
Comment on "Altermagnetic and Dipolar Spitting of Magnons in FeF_2" arXiv:2601.04303
S. W. Lovesey
Conclusions by Sears et al. (arXiv: 2601.04303) about dispersions of magnons in rutile FeF_2 are unsound because compulsory lattice vibrations are omitted in the analysis of their…
Magnetic structure of diamond EuTi2Al20
S. W. Lovesey, D. D. Khalyavin
We study magnetic symmetries of EuTi2Al20 that appear in the ordering of Eu ions below a temperature at 3.3 K, according to an analysis of substantial experimental evidence [M. Kaw…
Comment on arXiv:2510.13767; Structural origin of resonant diffraction in RuO_2 (DOI: 10.1103/yr5q-1v1s)
Stephen W. Lovesey
Occhialini et al. (arXiv:2510.13767; DOI: 10.1103/yr5q-1v1s) add results to several recent experimental studies of bulk magnetism in the rutile compound RuO_2. It is of interest as…
Chiral magnetnetism in an altermagnet (MnF2)
Stephen W. Lovesey
Symmetry informed diffraction patterns for magnetically ordered MnF2 illuminated by x-rays tuned in energy to a Mn atomic resonance depend on circular polarization in the primary b…
A case for resonant x-ray Bragg diffraction by a collinear antiferromagnet Li2Ni3P4O14
Stephen W. Lovesey
Magnetic axial and polar (Dirac) nickel multipoles contribute to resonant x-ray Bragg amplitudes in a symmetry informed analysis of monoclinic Li2Ni3P4O14 presented for future diff…
EuPdSn2; magnetic structures in view of resonant x-ray Bragg diffraction
Stephen W. Lovesey
The magnetic properties of materials hosting Eu2+(J = 7/2, 4f7) ions have attracted much attention in the science of strongly correlated electrons. In part because crystal electric…
Magnetic structure of the kagome metal YbFe6Ge6 in view of Bragg diffraction
S W Lovesey
A material in possession of localized 4f-electron magnetism and delocalized 3d-electron or band magnetism can often present A material in possession of localized 4f-electron magnet…
Double perovskite Ba2NaOsO6: Magnetic structure, Kramers doublet and x-ray magnetic dichroic signals
S W Lovesey
Of all the oxides of osmium, Ba2NaOsO6 is the only one with a substantial ferromagnetic moment. A fresh theoretical study of bulk magnetic properties of the double perovskite is ac…
A case for Bragg diffraction by a noncollinear (PT)-symmetric antiferromagnet Cu(MoO)(SeO)
S. W. Lovesey, G. van der Laan
Antiferromagnetic compounds chromium sesquioxide (CrO) and dioxomolybdenum selenite present linear magnetoelectric effects. Anti-inversion symmetry in the corresponding mag…
Magnetic symmetries of terbium tetraboride (TbB4) revealed by resonant x-ray Bragg diffraction
R. D. Johnson, S. W. Lovesey
A recent experimental study of TbB4 at a low temperature using resonant x-ray Bragg diffraction implies a magnetic symmetry not found in any other rare-earth tetraboride. The evide…
Magnetic properties of Sohncke-type Pb(TiO)Cu4(PO4)4
S. W. Lovesey
The enantiomorphous (chiral) crystal class of the Sohncke-type insulator Pb(TiO)Cu4(PO4)4 permits the rotation of the plane of polarization of light (optical activity). Copper ions…
A case for polar uranium octupoles in cubic U2N3
Stephen W. Lovesey
Uranium ions in sesquinitride alpha-U2N3 occupy independent acentric and centrosymmetric sites according to conventional x-ray diffraction patterns [R. Troć, J. Solid State Chem. 1…
Templates for magnetic symmetry and altermagnetism in hexagonal MnTe
S. W. Lovesey, D. D. Khalyavin, G. van der Laan
The symmetry of long-range magnetic order in manganese telluride (alpha-MnTe) is unknown. Likewise, its standing as an altermagnet. To improve the situation, we present symmetry in…
A magnetic structure of ruthenium dioxide (RuO2) and altermagnetism
S. W. Lovesey, D. D. Khalyavin, G. van der Laan
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 a…
Axial and polar magnetism in hexagonal YMnO3
S. W. Lovesey
Newly published diffraction data on hexagonal YMnO3 at a temperature of 10 K are shown to be consistent with a trusted expression of the magnetic symmetry, although the data alone…
Anapole, chiral and orbital states in Mn3Si2Te6
Stephen W. Lovesey
The ferrimagnet Mn3Si2Te6 attracts attention because of a recently discovered colossal magnetoresistance (CMR) with unique magnetic field properties. An improved magnetic structure…
Orthoferrite with a hidden lanthanide magnetic motif: NdFeO3
Stephen W. Lovesey
Scrutiny of an established monoclinic magnetic space group for NdFeO3 reveals hitherto unknown properties of the orthoferrite. Future experiments using neutron and x-ray diffractio…
Antiferromagnetic iron based magnetoelectric compounds
S. W. Lovesey
The Landau free-energy of a compound that benefits from a linear coupling of an electric field and a magnetic field includes a product of the two fields, one polar and time-even an…
Bragg diffraction by a magnetic all-in-all-out configuration with application to a cubic cerium pyrochlore oxide
Stephen W. Lovesey
The Bragg diffraction of neutrons and x-rays are well-suited to the task of determining the distribution of magnetization in crystals. Applications of the two techniques proceed by…
Comment on "Case for a U(1)pi Quantum Spin Liquid Ground State in the Dipole-Octupole Pyrochlore Ce2Zr2O7" by E. M. Smith et al., Phys. Rev. X 12, 021015 (2022)
S. W. Lovesey
All interpretations of extensive magnetic neutron scattering data in the cited paper are at fault [Phys. Rev. X 12, 021015]. For, the expressions for scattered intensities therein…
Polar magnetization unveiled by polarized neutron diffraction
S. W. Lovesey
Polar magnetism is present when ions occupy sites that are not centres of inversion symmetry. Fortunately, such magnetization contributes to neutron scattering that is the bedrock…
Hidden magnetic order on a kagome lattice for KV3Sb5
V. Scagnoli, D. D. Khalyavin, S. W. Lovesey
KV3Sb5 has recently attracted a considerable attention, due to its low temperature superconducting properties, which are heralded by a charge density wave. The apparent presence of…
Polar magnetism and chemical bond in alpha-RuCl3
S W Lovesey
Ruthenium trichloride is the subject of many recent experimental and theoretical studies. Johnson et al. infer a candidate for the magnetic structure (Cc2/m) from results gathered…