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Magnetic excitations from two-dimensional interpenetrating Cu framework in Ba...
The Heisenberg antiferromagnet is a well-known model used to describe the magnetic properties of layered and metal-organic Mott insulators which have been explored both... -
Neutron scattering study on the phonon spectra of two-dimensional metal chalc...
Two dimensional (2D) metal chalcogenides are constituted by covalently/ionically bonded atomic layers that are held together via interlayer van der Waals (vdW) forces, and... -
Low energy spin wave of BiFeO3 single crystal
Of all multiferroic materials, BiFeO3 stands out particularly with its both magnetic and ferroelectric transition temperatures above room temperatures, more interestingly having... -
Rattling modes in new thermoelectrics
NaxCoO2 has an exceptional combination of thermoelectric properties, including low thermal conductivity, and it is currently under consideration for use in power recovery and as... -
Search for incommensurate spin excitation in BaFe1.904Ni0.096As2
Motivated by the observation of incommensure magnetic order in Ba(Fe1-xCox)2As2, we have recently grown BaFe2-xNixAs2 crystals with systematic electron doping level especially... -
Orbital selective neutron spin resonance in underdoped Ba(Fe0.952Co0.048)2As2
The microscopic origin of neutron spin resonance remains one of the major debates in iron-based superconductors. The spin resonance in iron pnictides is generally interpreted as... -
Orbital selective neutron spin resonance in underdoped Ba(Fe0.952Co0.048)2As2
The microscopic origin of neutron spin resonance remains one of the major debates in iron-based superconductors. The spin resonance in iron pnictides is generally interpreted as... -
High-energy spin excitations in the optimally doped Ba0.67K0.33Fe2As2
From our previous data on BaFe2As2 and BaFe1.9Ni0.1As2, one may assume that the superconductivity only affects the low energy excitations. But for Ba0.67K0.33Fe2As2, the doping... -
Spin excitations in the superconducting FeTe0.6Se0.4
The FeTe1-xSex series exhibits superconductivity over a broad range of doping. Previously we have made extensive neutron scattering measurements on superconducting x = 0.49 and... -
High Energy Spin Fluctuations in BaFe1.9Ni0.1As2
There has been much research into the recently discovered iron based superconductors, but so far only the magnetic excitations at low energy have been investigated. We propose... -
Spin excitations and the resonance mode in KxFe2−δSe2
Recently, a new family of Fe-based superconductors has been discovered. Kx Fe2−δSe2 (KFS) is a strongly electron-doped compound with 122-type structure that is... -
Exploration of possible spin-charge ordered phases in La2-xBaxCoO4 (x=1/3 and...
This is a proposal to measure the magnetic spectrum of single crystal La2-xBaxCoO4 for the first time. The isostructural layered cobaltates with Sr and Ca instead of Ba have... -
Spin excitations in Rb0.8Fe1.7Se2-xTex with Tc=20K
The alkaline iron selenide RbFe1.6+xSe2 superconductors are a new system of iron-based superconductor with Tc up to 32K. According to recent experimental results, the... -
Test of FERNS CCR at low temperatures on MERLIN
This dataset has no description
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Origin of the magnetism in heavily electron-doped iron-selenide superconductor
Elucidating the nature of magnetism in a high temperature superconductor is important. Our previous neutron measurements at low temperature revealed a resonance mode at Q = (pi,... -
High Energy Magnetic Excitations in Fe(Se,Te)
In our recent experiments on MERLIN we have established that the spin excitations in Fe(Se,Te) emanating from incommensurate positions near (0.5 0.5 0) extends at least to 250... -
Spinwaves excitations in the zigzag spin chain compound beta-CaCr2O4
The S=3/2 zigzag chain antiferromagnet beta-CaCr2O4 exhibits broad spinwave excitations at low temperature, related to an incommensurate magnetic order that sets at TN = 21K.... -
Energy dependence of the quais_ferromagnetic fluctuations in the superconduct...
Sr2RuO4 is a superconductor with a layered perovskite structure. It is isostructural with the high-Tc cuprate superconductor La2-xSrxCuO4; however, the superconductivity in... -
Magnetic excitations in Ca3(Ru[1-x]Ti[x])2O7: Investigating the role of SOC i...
With this experiment we aim to investigate the role of spin orbit coupling (SOC) in 4d transition metal oxides.In previous inelastic neutron scattering experiments on the parent... -
Incommensurate magnetic fluctuation in KFe2As2 at high energy
We clearly observed incommensurate (IC) magnetic excitation in KFe2As2 above Tc with Ei=80 mev on ARCS at ORNL. Though we got beam time at LET, we wish to see how the IC changes...
