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Magnetic excitations in FeCrAs
We propose to carry out inelastic neutron scattering experiments to study magnetic excitation spectrum in FeCrAs. FeCrAs exhibits magnetic ordering around 125 K, which is... -
Spin-orbit coupling and spin dynamics in hexagonal iridate
Hexagonal iridate Na2IrO3 has recently been proposed as a candidate material to exhibit strong spin-orbit coupling effects which may stabilize a Mott insulating state with... -
Effect of oxygen vacancies on the phonon dispersion of pyrochlores
The frustrated magnetism of pyrochlores makes them candidates for applications in magnetic cooling and scientific instrumentation, and the proposal that they can be used to... -
Study of hybridization gap and insulator-metal transition in caged compounds ...
Heavy fermion compounds with a small energy gap opening in the strongly hybridised 4f-band at EF are currently under intensive investigations. Recently some of us have... -
Study of hybridization gap formation in a single crystal of the heavy-Fermion...
The solution of the Anderson lattice model (ALM) leads to two renormalized bands near EF with an energy gap due to hybridization between the 4f- and conduction electrons. The... -
Resonant Spin Excitation in Single Crystal of Ba0.8K0.2Fe2As2
We recently observed a resonant spin excitation in Ba0.6K0.4Fe2As2, one of the newly discovered iron arsenide superconductors with Tc=38K, on MERLIN. This demonstrates that the... -
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... -
Inelastic neutron scattering study on double perovskite Sr2TIrO6 (T = Ca, Sc,...
Recent observation of AFM transition at 1.3 K in Sr2YIrO6 with Ir in 5+ valence state has motivated research interests in the double perovskite Sr2TIrO6. Usually Ir5+ with a... -
Magnetic excitations of non-collinear incommensurate spin-density wave in bin...
Binary non-collinear incommensurate SDW compound FeAs may represent a unique itinerant antiferromagnet, not only different from its pnictide superconductor cousins, but also... -
Spin excitations in overdoped BaFe1.82Ni0.18As2
The relationship between spin fluctuations and superconductivity is an important issue in condensed matter physics. Part of evidence suggesting direct correlation between spin... -
Solvation dynamics of the phosopholipid 1,2-dipropanoyl-sn-glycero-3-phosphoc...
It is well known that water is the medium in which the overwhelming majority of biological processes take place. In cell membranes water molecules are thought to be essential to... -
Characterisation of the on-top vibrational mode of the surface hydride in bet...
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Crystal field excitations of Co ions in the ideal triangular lattice antiferr...
We propose to measure crystal field transitions of Co ions in Ba3CoSb2O9, proposed to be a unique experimental realization of the S=1/2 antiferromagnet on the triangular... -
Inelastic neutron scattering and musr studies of the high-distorted double pe...
The heat capacity and neutron powder diffraction measurements of the double perovskites La2NaB′O6 (B = Ru5+, Os5+) with S=3/2 on the B¿ reveal an incommensurate magnetic... -
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... -
Temperature dependence of the magnetic excitations in the near perfect S = 1/...
Quantum spin liquids (QSL) are novel states of matter that display exotic ground states and fractionalized excitations. In two dimensions, the most promising model system is the... -
Magnetic fluctuations in the ferromagnetic Mott insulator Yb2V2O7
We have investigated spin excitations in Lu2V2O7 on MERLIN in this cycle and it would be interesting to investigate how the spin excitations change when one have magnetic ion in... -
Giant magneto-elastic interactions and changes in the phonon spectrum of CoMnSi
Neutrons are almost never used to examine the role of phonons in materials with large magnetocaloric effects, despite the large magneto-elastic coupling often exhibited by them.... -
Two Kondo scales and crystal-field excitations in CeRuSn
At room temperature the ternary stannide CeRuSn crystallizes with a super structure of the monoclinic CeCoAl-type structure. Charge ordering produces a doubling of the unit cell... -
Fractionalized spin excitation and crystal electric field study in the rare-e...
A new rare-earth triangular quantum spin liquid (QSL) candidate, YbMgGaO4, has an odd number of electrons per unit cell and spin-orbit entangled effective spin-1/2 (Yb3+)....
