236 citations · 509 across the 12 of their papers we have counts for
10 papers · 1 filter
Role of defects in determining the magnetic ground state of ytterbium titanate
D. F. Bowman, E. Cemal, T. Lehner +11
Pyrochlore systems are ideally suited to the exploration of geometrical frustration in three dimensions, and their rich phenomenology encompasses topological order and fractional e…
Linarite - a quasi-critical J-J chain
Eron Cemal, Mechthild Enderle, Reinhard K. Kremer +5
The mineral linarite, PbCuSO(OH), is a spin 1/2 chain with frustrating nearest neighbor ferromagnetic and next-nearest neighbor antiferromagnetic exchange interactions. Our…
Vacancy defects and monopole dynamics in oxygen-deficient pyrochlores
G. Sala, M. J. Gutmann, D. Prabhakaran +6
The idea of magnetic monopoles in spin ice has enjoyed much success at intermediate temperatures, but at low temperatures a description in terms of monopole dynamics alone is insuf…
Divacancy superstructures in thermoelectric calcium-doped sodium cobaltate
D. G. Porter, M. Roger, M. J. Gutmann +5
We have grown single crystals of NaCaCoO and determined their superstructures as a function of composition using neutron and x-ray diffraction. Inclusion of Ca s…
Jahn-Teller versus quantum effects in the spin-orbital material LuVO3
M. Skoulatos, S. Toth, B. Roessli +17
We report on combined neutron and resonant x-ray scattering results, identifying the nature of the spin-orbital ground state and magnetic excitations in LuVO3 as driven by the orbi…
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…