-
The mechanism of cuprate superconductivity investigated in CLBLCO single crys...
Recently we have grown large single crystals of a the (CaxLa1-x)(Ba1.75-xLa0.25+x)Cu3Oy (CLBLCO) superconductor with x=0.1 and 0.4, where it was previously demonstrated that the... -
Spin dynamics in the extended Kagome system YBaCo4O(7+x)
A recently discovered new class of geometrically frustrated magnets is the family of cobalt oxides RBaCo4O7 (R=rare earth or Y). The structure is built up CoO4 tetrahedra which... -
Spin excitations in the single layer half doped manganite Pr0.5Ca1.5MnO4 abov...
The ground state of the single layer half-doped manganite Pr0.5Ca1.5MnO4 has the canonical CE antiferromagnetic charge- and orbitally-ordered (CO-OO) structure characteristic of... -
Multimagnon and intra-band excitations in the Spin-1 Haldane chain
The spin-1 Heisenberg antiferromagnetic (HAFM) chain is a canonical model system in quantum magnetism. The existence of the Haldane gap to the lowest energy excitations has been... -
Search for magnon-phonon coupling effect in metallic triangular antiferromagn...
Spin dynamics of non-collinear magnetic structures can exhibit the rare phenomena which go beyond the linear spin wave theory. Our previous studies on non-collinear... -
Spin excitations in the paramagnetic phase of a charge-ordered bilayered mang...
In a previous experiment we measured the spin wave spectrum of the half-doped bilayer manganite Pr(Ca,Sr)2Mn2O7 in its spin, charge and orbital ordered phase. The data, which... -
Spin dynamics in FeSi
At low temperatures FeSi is a non-magnetic insulator, but becomes a metallic paramagnet for T > 300K. It has been proposed to be a Kondo insulator in which local electron... -
Long wavelength magnetic excitations in YBaNiO
We have resonant spin echo data from TRISP at FRM-II in which we have measured the lifetimes of the triplet excitations across the Haldane gap in YBaNiO, the best experimental... -
High Energy Spin Fluctuations in YFe2Ge2
The recently discovered superconductor YFe2Ge2 (Tc about 1.8K) has the same crystal structure as 122 iron-based superconductors, with no static magnetic order be reported.... -
Search for magnetic correlations in Fe phosphide superconductors
We propose to use inelastic neutron scattering to search for the existence of spin fluctuations in two iron phosphide superconductors, LaFePO and Sr2ScFePO3. The objective is to... -
Detecting an entanglement transition in a quantum magnet
Entanglement is a defining feature of quantum mechanics that is central to quantum information theory. Its application to spin systems predicts a new type of phase transition in... -
Using phonons to probe the hidden order in URu2Si2
URu2Si2 exhibits a transition into a ¿hidden order¿ state below 17.5 K, in which there is no change of crystal structure or onset of large magnetic moment, but a huge release of... -
Magnetic excitations in La1.2Sr0.8NiO4 and LaSrNiO4
The recent exciting observations in the magnetic excitation spectra of cobalt oxides that are isostructural to the prototypical high-temperature superconducting cuprates have... -
High resolution measurement of mode Grueneisen parameters in the negative the...
ZrW2O8 is the classic example of a material exhibiting negative thermal expansion (NTE), i.e. lattice shrinkage on warming. The origin of this behaviour has been controversial... -
Spin excitations in LiFeAs, a stoichiometric ferropnictide superconductor at ...
We propose to measure the powder-averaged spin excitation spectrum of LiFeAs, a new member of the ferropnictide family of superconductors. This compound is special because it is... -
Crystal quality verification of K0.3MnO3
This dataset has no description
-
In search for magnon-magnon/phonon coupling in metallic triangular antiferrom...
Recent theories and experiments on two-dimensional triangular lattice antiferromagnet show that the spin dynamics of these system exhibit the rare phenomena due to high-order... -
Ex situ Study of glass formation from ion-exchanged Zeolite by INS
This proposal is a continuation of Rapid Access experiment RB170007 done on MARI in September 2016, as recommended by MARI beam scientists. This experiment was done to establish... -
Examining the magnon-magnon/phonon coupling in a new multiferroictwo-dimensio...
Non-collinear two-dimensional triangular antiferromagnets (2D TLAF) are currently an area of much active research due to their unique magnetic properties which lead to... -
Magnetic excitations of heavily electron overdoped BaFe0.8Ni1.2As2
We have devoted much efforts to investigating the doping evolution of the magnetic excitations in electron doped BaFe2-xNixAs2 (x=0-0.6). Spin excitations for x=0-0.6 have been...
