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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... -
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... -
The origin of ultra-low thermal conductivity in the thermal barrier material ...
Thermal barrier materials are used in modern turbines to enable them to run above the melting temperature of the turbine blades. However, to go to higher temperatures (and... -
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... -
Copy of: Investigation of magnetic transitions in a Cobalt based Brownmillerite
Brownmillerites of the form ABO2.5 constitute an interesting variant of oxygen deficient perovskites, with magnetic ions stabilized in alternate octahedral and tetrahedral... -
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... -
Spin excitations in the non-magnetic ground state of In2Ru2O7
Correlated transition-metal oxides with orbital degeneracy such as ruthenates with d4 (S = 1) configuration offer a plethora of unconventional electronic states. Combined with... -
Inelastic Neutron Scattering study on the La7Ni3 Noncentrosymmetric Supercond...
Noncentrosymmetric (NCS) superconductors are recognized as good candidates to search for superconductivity with broken time-reversal symmetry (TRS). Recent observation of TRS... -
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... -
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... -
Hourglass dispersion in overdoped manganites
Overdoped manganites were recently shown to exhibit stripe-like ordering of charges orbitals and magnetic moments. The magnetic excitations in these materials show close... -
Inelastic Neutron Scattering Study on the onset of Ferromagnetism in Y-Ni Bas...
Y-Ni based compounds are quite interesting materials as far as their magnetic ground states are concerned. As a function of Y concentration, the compounds show both weak...