-
Excitations of the Zeeman ladder in a transverse field in the Ising antiferro...
The excitations of an Ising antiferromagnetic chain have been studied in the past and are known to form either continuous spectrum or Zeeman ladders. Such a system can be... -
Magnon dispersion in the polar ferrimagnet BaCaFe4O7
Polar or non-centrosymmetric ferri(-o)magnets offer a plethora of potential technological devices;the inherent magnetoelectric effect can underpin both pyroelectric or... -
Spin Waves at High Temperature in the Parent Compound of the Superconductor F...
The recently discovered iron based superconductors have transition temperatures second only to the cuprates. The majority of these compounds display superconductivity after... -
Mapping the Full Magnetic Dispersion of Multiferroic LuFe2O4
A better understanding of the magnetic excitation spectrum of LuFe2O4 is required to refine current models of the magnetoelectric coupling in this novel "electronic"... -
Hard-Axis Ordering in Ferromagnetic CeAgSb2
We propose to study the low-energy spin fluctuations in ferromagnetic metal CeAgSb2. The ordered moment is oriented away from the direction favored by the lattice. Recent... -
Field effect of the magnetic ground state in a triangular-lattice magnet
Rare-earth frustrated magnets have attracted great interest because they can form rather complex ground states such as hidden order phases, the order parameters of which cannot... -
Stduying the Proximity effect in Co/CuMn Multilayers
A direct measurement of the spin accumulation in a magnetic nanostructure is a key requirement to the theoretical and ultimately technological exploitation of picosecond... -
Phase retrieval for non-trivial systems
Neutron reflectometry (NR) is a very powerful technique for the study of thin layers. It is able to measure composition, thickness and roughness and is a very penetrating... -
Exploring high energy nematic spin correlations in uniaxial-strained BaFe2As2
Electronic nematic phase in iron-pnictide superconductors have been discovered in various systems by techniques such as resistivity, ARPES, magnetic torque and neutron... -
µSR studies of free radical reactions by non-thermal microwave effects
We plan to study the non-thermal microwave (MW) effects on H2O2 through its reaction with muonium under MW irradiation. The key objectives are 1) for the first time definitively... -
Probing the vortex lattice in the iron-based superconductor FeSe
Magnetic field can penetrate a Type-II superconductor to form a vortex lattice (VL) due to the mutual repulsion between the vortices. VL is very important as it contains rich... -
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... -
The effect of a vanishing pseudogap on the magnetic excitations in overdoped ...
One of the major issues in high temperature superconductivity is the nature of the so called pseudogap phase. A related question is whether the pseudogap controls the evolution... -
Texture measurements in Electron beam welded dissimilar steel to Al joints sa...
This dataset has no description
-
Magnetic excitation in Sr2IrO4 : Establishing links to Cuprate superconductors
The strontium iridate Sr2IrO4 has recently received a special attention because of its closeresemblance to undoped high-Tc cuprate in terms of structural, electronic, and... -
Full reciprocal space imaging of the acoustic phonons in MgV2O4:
The proposal requests time to obtain a full mapping of the low-energy acoustic phonons. We have measured an acoustic phonon anomaly associated with the structural transition and... -
Paramagnetic excitations in BaFe2As2 at high temperature
One fundamental issue in the iron-based superconductors is whether the conventional local moment Heisenberg model is sufficient to describe magnetism in these materials, or... -
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... -
Low-energy spin excitations in Ni over-doped NaFe0.7Ni0.3As
The discovery of iron-based superconductors gives a new horizon to study unconventional superconductivity. Typically iron-based superconductors can be created by doping (i.e.... -
High precision measurement of the spin waves in Yttrium Iron Garnet
Yttrium Iron Garnet (YIG) is a material with extremely wide ranging applications. It is a ferrimagnetic spinel with the narrowest ferromagnetic resonance linewidth of any known...
