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Which is it? ¿ Neutrons distinguish monolayers xrays can¿t.
We have obtained the monolayer structure diffraction patterns from several iodoalkanes adsorbed on graphite, of interest in the study of non-covalent bonding. However, it is... -
The Metal to Insulator Transition (MIT) in Bi1.7V8O16 probed with neutron spe...
We propose to investigate the low energy spin and orbital fluctuations in Bi1.7V8O16 which displays a metal to insulator transition. This work will be performed in conjunction... -
An Investigation on the Effects of B-site disorder on the CF scheme of Rare E...
We propose to use MARI to (1) compare the properties of the crystal field (CF) scheme between Yb2GaSbO7 (YGSO) and its parent compound Yb2Ti2O7, in hopes of elucidating the... -
Magnetic excitations from optimally doped BSCCO in the pseudogap phase
We plan to study the temperature dependence of magnetic excitations in the optimally doped high-Tc superconductor Bi$2$Sr$_2$CaCu$_2$O${8+\delta}$ (BSCCO). We have previously... -
Local structure in defect fluorite disordered Er2Zr2O7 and pyrochlore ordered...
Cubic A2B2O7 oxides with A standing for a rare-earth element and B for a transition or main block metal have been systematically studied for their frequently exotic... -
Spin excitations in the candidate Weyl semimetal EuCuAs
Very recently, EuCuAs was proposed as an example of a topological semimetal. Our measurements on Wish show that the Eu magnetic structure is incommensurate with a propagation... -
Chemically Tailorable Frustrated Systems, Magnetic order in the J1/J1 rectan...
This proposal forms part of an exploratory study of new mixed anion coordination compounds. We have prepared a family of oxalate-fluorides, which are anticipated to have... -
Defect perturbation of the rotational states of NH4 in octahedral environments
The (NH4)0.02 Rbx K0.98-x I system offers advantages for the systematic study of tunnelling species and how they interact. Currently there are two models to explain the dynamics... -
Giant spin fluctuations and their effect on the first order magnetic transiti...
A giant enhancement of the heat capacity in La(Fe13-xSix) indicates the presence of large spin fluctuations at the paramagnetic to ferromagnetic phase transition. The nature of... -
Identification of complex energy hierarchy in the coupled trimer spin system ...
The weakly coupled spin cluster systems provide a fertile ground to study both zero-dimensional quantum and three-dimensional collective magnetism. Such spin cluster systems... -
High-Energy dynamics and search for a continuum in CaFe2O4
We propose to investigate the high-energy (above 10 meV) excitations using either the MERLIN or MAPS chopper instruments. CaFe2O4 is interesting for several reasons. First, it... -
Magnetic excitations in honeycomb ruthenate Na2RuO3
Honeycomb magnets with strong spin-orbit coupling (SOC) are expect to produce exotic magnetic ground states as exemplified by d5 iridates with Jeff = 1/2 state. In d4 case, SOC... -
Investigation of nonmagnetic degenerated ground state in a cubic 4f2 system P...
Praseodymium-based cubic compounds with a 4f2 configuration have attracted much attention. In case the crystalline electric field ground state is a nonmagnetic doublet, the... -
New apparatus for neutron diffraction under uniaxial pressure.
We propose to test new apparatus for the magnetic neutron diffraction under uniaxial pressure on WISH diffractometer. The main feature of our apparatus is that the sample is not... -
Detecting an entanglement transition in a quantum magnet
Justification: We'd like to apply for three days Director’s Discretionary time on WISH to continue the experiment on measures of quantum entanglement in a model 1D magnet. This... -
Magnetic phase transitions in geometrically frustrated SrHo2O4
We propose to probe the development of the low-temperature magnetism in SrHo2O4 using a high count rate diffractometer such as WISH or GEM. SrHo2O4 belongs to a family of... -
Magnetic order in polar oxides: Mn2FeWO6 and Mn2MnWO6
Magnetoelectric materials, combining properties associated with magnetic and ferroelectric memory applications (e.g. in hard drives) are difficult to prepare but would represent... -
SXD investigation of post pressurised Cs2CuCl4
Cs2CuCl4 has been extensively studied using neutron scattering, and has revealed a quantum spin liquid phase below 2.8 K with antiferromagnetic interactions, and long range... -
Neutron spectroscopy in mononuclear Ni(II) complexes
Mononuclear Ni(II) complexes can be designed to behave as two-level systems and thus play the role of qbits with eventually large coherence time. The objective of this proposal... -
Spin Configuration and Spin Reorientation Transition in Composite Rare Earth ...
Rare-earth orthoferrites (RFeO3) and orthochromates (RCrO3) exhibit canted antiferromagnetic structure with 3 different allowed spin configuration (SC)s.Temperature as well as...