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Quantum critical dynamics in the presence of disorder
Quantum phase transitions are abrupt qualitative changes of a system's groundstate occurring only at exactly zero temperature. Such critical points - although never reachable... -
Magnetic excitations in SrEr2O4
In SrEr2O4 the magnetic Er ions are linked through a network of triangles and hexagons, where geometrical frustration can arise, provided that some exchange interactions are... -
The Dynamics of Water in Hydrous Micas
The study of the interaction mechanisms between water and layered silicates is central to the evaluation of the physicochemical properties of these materials, and it is an... -
Molecular weight dependence of 2D-confined dynamics in glass-forming systems
We seek to explore the dynamics of glass forming systems upon extreme 2D-confinement. These experiments are motivated by preliminary experiments on oligomers and macromolecules... -
Proton/deuteron mobility in ammonium hexachlorometallates.
The piloting experiments RB820478, RB610497 and RB 10067 on VESUVIO on (NH4)2PdCl6 and (NH4)2TeCl6 have shown that: (i) at 300 K, the dynamics of NH4+ and PdCl6- and TeCl6- is... -
Two-Dimensional Triangular Mott Insulator
The 1T polytype of the transition-metal dichalchogenide TaS2 is a system with a very rich phase diagram. Upon cooling down, the crystal goes through a series of charge density... -
Low temperature magnetic order and spin dynamics in Ho2Ir2O7
Ho2Ir2O7 has a cubic pyrochlore structure. Trigonal crystal fields at both the Ho and Ir sites create Ising-like moments that can order in a non-collinear arrangement with... -
Modifications to the phonon spectrum of nanocomposite thermoelectrics
Here we propose to use the superior energy resolution of OSIRIS to measure the phonon desnity of states (PDOS) of both nanocomposite and bulk thermoelectric alloys of Si1-xGex.... -
Dynamics of Polymer/Polymer nanocomposites
By adding only about 1% of soft polymer nanoparticles to natural rubber, a dramatic decrease in the viscosity (more than 50%) is induced. Our recent time of flight measurements... -
Magnetic Excitations of the Quantum Hyperkagome Antiferromagnet, Na4Ir3O8
We propose to investigate the hyperkagome antiferromagnet Na4Ir3O8. Here the magnetic Ir4+ ions lie on a three-dimensional network of corner sharing triangles and interact with...
