311 citations · 1.1k across the 17 of their papers we have counts for
18 papers
Emergent Polar Metal Phase in a Van der Waals Mott Magnet
Shiyu Deng, Matthew J. Coak, Charles R. S. Haines +16
We report the emergence of a two-dimensional (2D) polar metal phase in van der Waals compound FePSe under moderate pressures. This layered material is a Mott insulator with ant…
Revisiting spin ice physics in the ferromagnetic Ising pyrochlore PrSnO
Brenden R. Ortiz, Paul M. Sarte, Ganesh Pokharel +12
Pyrochlore materials are characterized by their hallmark network of corner-sharing rare-earth tetrahedra, which can produce a wide array of complex magnetic ground states. Ferromag…
Magnetic structure and low temperature properties of geometrically frustrated SrNdO
N. Qureshi, A. Wildes, C. Ritter +4
We report the low-temperature properties of SrNdO, a geometrically frustrated magnet. Magnetisation and heat capacity measurements performed on polycrystalline samples indi…
Spin dynamics and unconventional Coulomb phase in NdZrO
M. Léger, E. Lhotel, M. Ciomaga Hatnean +6
We investigate the temperature dependence of the spin dynamics in the pyrochlore magnet NdZrO by neutron scattering experiments. At low temperature, this material under…
Sample Dependence of Magnetism in the Next Generation Cathode Material LiNiMnCoO
P. Mukherjee, J. A. M. Paddison, C. Xu +6
We present a structural and magnetic study on two batches of polycrystalline LiNiMnCoO (commonly known as Li NMC 811), a Ni-rich Li ion battery cathode…
Dipolar Spin Ice Under Uniaxial Pressure
Richard Edberg, Lise Ørduk Sandberg, Ingrid Marie Bergh Bakke +8
The magnetically frustrated spin ice family of materials is host to numerous exotic phenomena such as magnetic monopole excitations and macroscopic residual entropy extending to lo…
The magnetic exchange parameters and anisotropy of the quasi-two dimensional antiferromagnet NiPS
D. Lançon, R. A. Ewings, T. Guidi +2
Neutron inelastic scattering has been used to measure the magnetic excitations in powdered NiPS, a quasi-two dimensional antiferromagnet with spin on a honeycomb lattic…
Structural and electronic phase transitions in FePS under the application of pressure
C. R. S. Haines, M. J. Coak, G. I. Lampronti +6
Two-dimensional materials have proven to be a prolific breeding ground of new and unstudied forms of magnetism and unusual metallic states, particularly when tuned between their in…
Magnetism of monomer MnO and heterodimer FePt@MnO nanoparticles
X. Sun, A. Klapper, Y. Su +8
We report about the magnetic properties of antiferromagnetic (AF) MnO nanoparticles (NPs) with different sizes (6-19nm). Using a combination of polarized neutron scattering and mag…
Highly frustrated magnetism in SrHo2O4: Coexistence of two types of short-range order
O. Young, A. R. Wildes, P. Manuel +4
SrHo2O4 is a geometrically frustrated magnet in which the magnetic Ho3+ ions form honeycomb layers connected through a network of zigzag chains. At low-temperature two distinct typ…
Spin correlations and exchange in square lattice frustrated ferromagnets
M. Skoulatos, J. P. Goff, C. Geibel +8
The J1-J2 model on a square lattice exhibits a rich variety of different forms of magnetic order that depend sensitively on the ratio of exchange constants J2/J1. We use bulk magne…
Experimental Proof of a Magnetic Coulomb Phase
Tom Fennell, P. P. Deen, A. R. Wildes +6
Spin ice materials are magnetic substances in which the spin directions map onto hydrogen positions in water ice. Recently this analogy has been elevated to an electromagnetic equi…
Ordering and Excitations in the Field-Induced Magnetic Phase of Cs_3Cr_2Br_9
B. Grenier, Y. Inagaki, L. P. Regnault +7
Field-induced magnetic order has been investigated in detail in the interacting spin 3/2 dimer system Cs_3Cr_2Br_9. Elastic and inelastic neutron scattering measurements were perfo…
Glass Transition in the Polaron Dynamics of CMR Manganites
D. N. Argyriou, J. W. Lynn, R. Osborn +6
Neutron scattering measurements on a bilayer manganite near optimal doping show that the short-range polarons correlations are completely dynamic at high T, but then freeze upon co…
Er2Ti2O7: Evidence of Order by Disorder in a Frustrated Antiferromagnet
J. D. M. Champion, M. J. Harris, P. C. W. Holdsworth +14
Er_2Ti_2O_7 has been suggested to be a realization of the frustrated < 111 > XY pyrochlore lattice antiferromagnet, for which theory predicts fluctuation-induced symmetry breaking…
Coupled Magnetic Excitations in Single Crystal PrBa2Cu3O6.2
S. J. S. Lister, A. T. Boothroyd, N. H. Andersen +4
The dispersion of the low-energy magnetic excitations of the Pr sublattice in PrBa2Cu3O6.2 is determined by inelastic neutron scattering measurements on a single crystal. The dispe…
Spin Correlations in HoTiO: a Dipolar Spin Ice System
S. T. Bramwell, M. J. Harris, B. C. den Hertog +8
The pyrochlore material has been suggested to show ``spin ice'' behaviour. We present neutron scattering and specific heat results that establish unambiguou…
Polarized-neutron study of longitudinal Haldane-gap excitations in NdBaNiO
S. Raymond, T. Yokoo, A. Zheludev +3
Polarized and unpolarized inelastic neutron scattering is used to study Haldane-gap excitations in the mixed-spin linear-chain antiferromagnet Nd2BaNiO5. The longitudinal mode, pol…