560 citations · 2.3k across the 60 of their papers we have counts for
7 papers · 1 filter
Magnetic dilution and domain selection in the XY pyrochlore antiferromagnet ErTiO
J. Gaudet, A. M. Hallas, D. D. Maharaj +7
Below K, the XY pyrochlore ErTiO orders into a non-collinear, antiferromagnetic structure referred to as the state. The magnetic order in ErT…
Relief of Frustration in the Heisenberg Pyrochlore Antiferromagnet GdPtO
A. M. Hallas, A. Z. Sharma, Y. Cai +5
The gadolinium pyrochlores, GdO, are amongst the best realizations of antiferromagnetically coupled Heisenberg spins on a pyrochlore lattice. We present a magnetic chara…
Volume-wise destruction of the antiferromagnetic Mott insulating state through quantum tuning
Benjamin A. Frandsen, Lian Liu, Sky C. Cheung +25
Metal-to-insulator transitions (MITs) are a dramatic manifestation of strong electron correlations in solids1. The insulating phase can often be suppressed by quantum tuning, i.e.…
Statics and dynamics of the highly correlated spin ice Ho2Ge2O7
A. M. Hallas, J. A. M. Paddison, H. J. Silverstein +11
The pyrochlore Ho2Ge2O7 is a new highly correlated spin ice material. Physical property measurements including x-ray diffraction, dc susceptibility and ac susceptibility, confirm t…
Coexistence of superconductivity and antiferromagnetism in CaLa(FeCo)As single crystals
Shan Jiang, Lian Liu, Michael Schutt +9
We report the transport, thermodynamic, SR and neutron study of the CaLa(FeCo)As single crystals, mapping out the temperature-doping…
Universal Dynamic Magnetism in Yb-Pyrochlores with Disparate Ground States
A. M. Hallas, J. Gaudet, N. P. Butch +5
The ytterbium pyrochlore magnets, Yb2B2O7 (B = Sn, Ti, Ge) are well described by S_eff = 1/2 quantum spins decorating a network of corner-sharing tetrahedra and interacting via ani…
XY Antiferromagnetic Ground State in the Effective S=1/2 Pyrochlore Yb2Ge2O7
A. M. Hallas, J. Gaudet, M. N. Wilson +10
We report neutron scattering and muon spin relaxation measurements (muSR) on the pyrochlore antiferromagnet Yb2Ge2O7. Inelastic neutron scattering was used to probe the transitions…