101 citations · 565 across the 11 of their papers we have counts for
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Low temperature magnetic structure of the quasi 1-dimensional magnet Ni2SiO4
R H Colman, T Fennell, C Ritter +3
Ni2SiO4, Liebenbergite, is an example of a quasi-one-dimensional magnet made up of frustrated corner sharing triangles of Ni2+ (S = 1) ions that propagate parallel to the b axis. N…
Magnetothermal study of Dy Stuffed Spin Ice: Dy2(DyxTi2-x)O7-x/2
B. G. Ueland, G. C. Lau, R. S. Freitas +6
We have studied the thermodynamics of the stuffed spin ice material, Dy2(DyxTi2-x)O7-x/2, in which additional Dy3+ replace Ti4+ in the pyrochlore Dy2Ti2O7. Heat capacity measuremen…
Non-monotonic zero point entropy in diluted spin ice
X. Ke, R. S. Freitas, B. G. Ueland +5
Water ice and spin ice are important model systems in which theory can directly account for zero point entropy associated with quenched configurational disorder. Spin ice differs f…
Stuffed Rare Earth Pyrochlore Solid Solutions
G. C. Lau, B. D. Muegge, T. M. McQueen +2
Synthesis and crystal structures are described for the compounds Ln2(Ti2-xLnx)O7-x/2, where Ln = Tb, Dy, Ho, Er, Tm, Yb, Lu, and x ranges from 0 to 0.67. Rietveld refinements on X-…
Zero Point Entropy in Stuffed Spin Ice
G. C. Lau, R. S. Freitas, B. G. Ueland +4
The third law of thermodynamics dictates that the entropy of a system in thermal equilibrium goes to zero as its temperature approaches absolute zero. In ice, however, a "zero poin…
Magnetic frustration in the sawtooth lattice of ZnLn2S4 (Ln = Er, Tm, Yb) olivines
G. C. Lau, B. G. Ueland, R. S. Freitas +3
We report the magnetic properties of the ZnLn2S4 (Ln = Er, Tm, Yb) olivines, in which the magnetic lanthanide ions are in a potentially frustrated geometry consisting of sawtooth c…
Geometrical Magnetic Frustration in Rare Earth Chalcogenide Spinels
G. C. Lau, R. S. Freitas, B. G. Ueland +2
We have characterized the magnetic and structural properties of the CdLn2Se4 (Ln = Dy, Ho), and CdLn2S4 (Ln = Ho, Er, Tm, Yb) spinels. We observe all compounds to be normal spinels…