170 citations · 754 across the 19 of their papers we have counts for
12 papers · 1 filter
Anomalous continuum scattering and higher-order van Hove singularity in the strongly anisotropic S = 1/2 triangular lattice antiferromagnet
Pyeongjae Park, E. A. Ghioldi, Andrew F. May +10
The S = 1/2 triangular lattice antiferromagnet (TLAF) is a paradigmatic example of frustrated quantum magnetism. An ongoing challenge involves understanding the influence of exchan…
Octupolar vs Néel Order in Cubic 5 double perovskites
Dalini D. Maharaj, Gabriele Sala, Matthew B. Stone +7
We report time-of-flight neutron spectroscopic and diffraction studies of the 5 cubic double pervoskite magnets, BaMOsO ( = Zn, Mg, Ca). These cubic materials are a…
Quantum Spin Ice Dynamics in the Dipole-Octupole Pyrochlore Magnet CeZrO
J. Gaudet, E. M. Smith, J. Dudemaine +11
Neutron scattering measurements on the pyrochlore magnet CeZrO reveal an unusual crystal field splitting of its lowest =5/2 multiplet, such that its ground state dou…
Magneto-elastic induced vibronic bound state in the spin ice pyrochlore HoTiO
J. Gaudet, A. M. Hallas, C. R. C. Buhariwalla +6
The single ion physics of HoTiO is well-understood to produce strong Ising anisotropy, which is an essential ingredient to its low-temperature spin ice state. We presen…
Low energy magnon dynamics and magneto-optics of the skyrmionic Mott insulator CuOSeO
N. J. Laurita, G. G. Marcus, B. A. Trump +5
In this work, we present a comprehensive study of the low energy optical magnetic response of the skyrmionic Mott insulator CuOSeO via high resolution time-domain THz spect…
Single-ion properties of the = 1/2 XY antiferromagnetic pyrochlores, NaCoF ( Ca, Sr)
K. A. Ross, J. M. Brown, R. J. Cava +4
The antiferromagnetic pyrochlore material NaCaCoF is a thermal spin liquid over a broad temperature range (~ 140 K down to K), in which magnetic correlations be…
Spin pseudogap in the chain material SrCuO with impurities
G. Simutis, S. Gvasaliya, N. S. Beesetty +14
The low energy magnetic excitation spectrum of the Heisenberg antiferromagnetic chain system SrCuO with Ni- and Ca-impurities is studied by neutron spectroscopy.…
Magnetic Correlations in the Quasi-2D Semiconducting Ferromagnet CrSiTe
T. J. Williams, A. A. Aczel, M. D. Lumsden +4
Intrinsic, two-dimensional ferromagnetic semiconductors are an important class of materials for overcoming the limitations of dilute magnetic semiconductors for spintronics applica…
Magnetic soft modes in the locally distorted triangular antiferromagnet alpha-CaCr2O4
S. Toth, B. Lake, K Hradil +4
In this paper we explore the phase diagram and excitations of a distorted triangular lattice antiferromagnet. The unique two-dimensional distortion considered here is very differen…
Quasi-one-dimensional magnons in an intermetallic marcasite
M. B. Stone, M. D. Lumsden, S. E. Nagler +4
We present inelastic neutron scattering measurements and first principles calculations examining the intermetallic marcasite CrSb2. The observed spin wave dispersion implies that t…
Phonon softening and anomalous mode near the quantum critical point in CaSrRuO
R. G. Moore, M. D. Lumsden, M. B. Stone +6
Inelastic neutron scattering is used to measure the temperature dependent phonon dispersion in CaSrRuO (, 0.6). The in-plane octahedral tilt mode…
Quantum spin correlations in an organometallic alternating sign chain
M. B. Stone, W. Tian, M. D. Lumsden +5
High resolution inelastic neutron scattering is used to study excitations in the organometallic magnet DMACuCl. The correct magnetic Hamiltonian describing this material has be…