G. S. Tucker
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View article: On the pseudo-doublet ground state of the non-Kramers compound SrTm2O4 and its frustrated antiferromagnetic interactions
On the pseudo-doublet ground state of the non-Kramers compound SrTm2O4 and its frustrated antiferromagnetic interactions Open
Here we present experimental evidence of the pseudo-doublet ground state of the non-Kramers compound SrTm2O4, based on specific heat, magnetic entropy and electron paramagnetic resonance. We demonstrate that the two crystallographic Tm3+ s…
View article: Short-range magnetic correlations in quasicrystalline i-Tb-Cd
Short-range magnetic correlations in quasicrystalline i-Tb-Cd Open
We report on elastic and inelastic neutron scattering from single-grain isotopically-enriched samples to elucidate the local magnetic correlations between Tb$^{3+}$ moments in quasicrystalline i-Tb-Cd. The inelastic neutron scattering meas…
View article: Early Release Science of the exoplanet WASP-39b with JWST NIRCam
Early Release Science of the exoplanet WASP-39b with JWST NIRCam Open
Measuring the metallicity and carbon-to-oxygen (C/O) ratio in exoplanet atmospheres is a fundamental step towards constraining the dominant chemical processes at work and, if in equilibrium, revealing planet formation histories. Transmissi…
View article: Topological magnon band structure of emergent Landau levels in a skyrmion lattice
Topological magnon band structure of emergent Landau levels in a skyrmion lattice Open
The motion of a spin excitation across topologically nontrivial magnetic order exhibits a deflection that is analogous to the effect of the Lorentz force on an electrically charged particle in an orbital magnetic field. We used polarized i…
View article: Data supplement for "Topological magnon band structure of emergent Landau levels in a skyrmion lattice"
Data supplement for "Topological magnon band structure of emergent Landau levels in a skyrmion lattice" Open
Collection of the data sets for our paper, Topological magnon band structure of emergent Landau levels in a skyrmion lattice. (The source code supplement can be found here.) Contents Data files used for the paper's figures. Scan Figure Fil…
View article: Data supplement for "Topological magnon band structure of emergent Landau levels in a skyrmion lattice"
Data supplement for "Topological magnon band structure of emergent Landau levels in a skyrmion lattice" Open
Collection of the data sets for our paper, Topological magnon band structure of emergent Landau levels in a skyrmion lattice. (The source code supplement can be found here.) Contents Data files used for the paper's figures. Scan Figure Fil…
View article: Revealing three-dimensional quantum criticality by Sr substitution in Han purple
Revealing three-dimensional quantum criticality by Sr substitution in Han purple Open
Classical and quantum phase transitions (QPTs), with their accompanying concepts of criticality and universality, are a cornerstone of statistical thermodynamics. An excellent example of a controlled QPT is the field-induced ordering of a …
View article: Energy domain versus time domain precursor fluctuations above the Verwey transition in magnetite
Energy domain versus time domain precursor fluctuations above the Verwey transition in magnetite Open
We study the dynamics and interactions of the critical fluctuations of the Verwey transition in magnetite (Fe3O4) in the pretransition region by means of inelastic neutron scattering experiments on a natural single crystal. We find that a …
View article: Field dependence of nonreciprocal magnons in chiral MnSi
Field dependence of nonreciprocal magnons in chiral MnSi Open
Spin waves in chiral magnetic materials are strongly influenced by the\nDzyaloshinskii-Moriya interaction resulting in intriguing phenomena like\nnon-reciprocal magnon propagation and magnetochiral dichroism. Here, we study\nthe non-recipr…
View article: Magnetic quadrupolar order in the chiral square cupola compound BaTiOCu<sub>4</sub>(PO<sub>4</sub>)<sub>4</sub>
Magnetic quadrupolar order in the chiral square cupola compound BaTiOCu<sub>4</sub>(PO<sub>4</sub>)<sub>4</sub> Open
We report neutron diffraction studies of the magnetic structure in BaTiOCu4(PO4)4 , which is a newly discovered magneticinsulator crystallizing in a tetragonal chiral crystal structure with P4212 space group [1]. The crystal structure isch…
View article: Mapping the lattice dynamical anomaly of the order parameters across the Verwey transition in magnetite
Mapping the lattice dynamical anomaly of the order parameters across the Verwey transition in magnetite Open
We present inelastic neutron scattering data across the Verwey transition in magnetite, obtained for a single crystal via a detwinning method. We provide direct evidence of the influence of the charge order on the transverse-acoustic phono…