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Competing magnetic ground states and their coupling to the crystal lattice in CuFe2Ge2
Andrew F. May, Stuart Calder, David S. Parker +2
Identifying and characterizing systems with coupled and competing interactions is central to the development of physical models that can accurately describe and predict emergent be…
Phonon anharmonicity and negative thermal expansion in SnSe
Dipanshu Bansal, Jiawang Hong, Chen W. Li +5
The anharmonic phonon properties of SnSe in the Pnma phase were investigated with a combination of experiments and first-principles simulations. Using inelastic neutron scattering…
Candidate Elastic Quantum Critical Point in LaCuAu
L. Poudel, A. F. May, M. R. Koehler +10
The structural properties of LaCuAu have been studied using neutron diffraction, x-ray diffraction, and heat capacity measurements. The continuous orthorhombic-monoclin…
Dynamic defect correlations dominate activated electronic transport in SrTiO3
Paul C. Snijders, Cengiz Şen, Michael P. McConnell +5
Strontium titanate (SrTiO3, STO) is a critically important material for the study of emergent electronic phases in complex oxides, as well as for the development of applications ba…
Anisotropic exchange within decoupled tetrahedra in the quantum breathing pyrochlore Ba3Yb2Zn5O11
J. G. Rau, L. S. Wu, A. F. May +9
The low energy spin excitation spectrum of the breathing pyrochlore Ba3Yb2Zn5O11 has been investigated with inelastic neutron scattering. Several nearly resolution limited modes wi…