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Investigation of a Potential realization of the Nersesyan-Tsvelik Model in (N...
We propose to investigate the highly one-dimensional (1D) S=1/2 Heisenberg antiferromagnet (NO)[Cu(NO3)3] which is a potential realization of the Nersesyan-Tsvelik model. The... -
LET commisioning
This dataset has no description
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Search for Neutron Spin Resonance and High Energy Spin Excitations in Exotic ...
Neutron spin resonance mode is a common feature in different classes of magnetic superconductors; nonetheless, the microscopic origin of the mode is still unclear. In general,... -
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... -
Resonant Spin Excitation in Single Crystal of Ba0.3K0.7Fe2As2
We recently observed a resonant spin excitation in Ba1-xKxFe2As2 (x=0.4), one of the newly discovered iron arsenide superconductors with Tc=38K, on MERLIN. This demonstrates... -
Excitations of a solitonic lattice in the multiferroic material TbFeO3
The multiferroic system TbFeO3 undergoes magnetic transitions at 8.5 and 3 K, and with further modification in applied fields leading to a complex H-T phase diagram. At a... -
Spin excitation anisotropy in FeSe
Iron selenide (FeSe), a member of "11" family in iron-based superconductors, does not have static AF order; thus, the structural transition and associated nematic order have... -
Fractional spinon excitations in triangular-lattice quantum-spin-liquid candi...
A quantum spin liquid (QSL) is an exotic state of matter, which shows no magnetic order down to zero temperature but the spins are highly entangled. Its elementary excitations... -
Gaps in the spin wave dispersion relation in elemental iron
Iron is a canonical instance of an itinerant electron ferromagnet, and a classic correlated electron system. Our recent data from MAPS contradicts earlier triple-axis data that... -
Fractionalized excitations in the zigzag pseudospin-1/2 quantum chain compoun...
One-dimensional (1D) S = 1/2 spin chains are a subject of long-standing interest, because conventional long-range ordering can be prevented and novel Luttinger-liquid phase may... -
Mapping the magnon spectra in the skyrmion phase of MnSi
In cubic B20 structures, skyrmions, topologically-protected three-dimensional spin textures, arise from competition of the ferromagnetic exchange interaction and the... -
Q dependence of the low energy magnetic fluctuations in Intermediate Valence ...
A strong Q-dependence of the magnetic response at characteristic energy of EK~kBTK (TK is a Kondo temperature) has been observed in recent inelastic neutron scattering studies... -
Investigation of a frustrated quantum magnet with novel interaction scheme
SrCuTe2O6 consists of a 3-dimensional arrangement of spin-1/2 Cu ions that are coupled into network of isolated triangles,a highly frustrated hyperkagome lattice consisting of... -
Unravelling spin fluctuation components in a stripe-ordered cuprate
In previous experiments at ILL we observed a gap in the magnetic excitation spectrum of the stripe-ordered superconductor (La,Nd)2-xSrxCuO4, x=0.12. We observed a spin gap of... -
Anomalous lattice dynamics of the elemental superconductor niobium
Phonon lifetimes in BCS superconductors provide information on the details of the electron-phonon coupling mechanism. In 2008 high-resolution neutron inelastic scattering... -
The LET collimating Snout
This dataset has no description
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Magnetic excitation spectrum near incipient SDW order in Nb1-xFe2+x
Our previous neutron diffraction on C14 Laves phase compounds Nb1-xFe2+x revealed thata spin-density-wave (SDW) is masking an underlying ferromagnetic (FM) quantum critical... -
The coupling of spin and charge correlations in La2-xSrxCuO4
Charge density wave (CDW) order has recently been established as a generic feature of high-temperature cuprate superconductors. It occurs near 1/8 doping and has been observed... -
Evolve of the Spin Waves in Rb0.8Fe1.6Se2 at High Temperature
The newly discovered AxFe2-ySe2 (A=K,Rb,Cs) compounds have attracted great interests because of their parent compounds are insulators instead of being metallic [2-6].... -
Temperature Dependence of the Magnetic Excitations in Ni-doped NaFeAs
In a recent work by Jun Zhao's group [Nature Communications 7, 12182 (2016)], they show that FeSe exhibits both stripe (1,0) and Néel (1,1) antiferromagnetic order, with the...
