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Magnetic Phase Separation in a Frustrated Antiferromagnet
Frustrated magnetic materials are interesting because they show unusual behaviour arising from a near-degeneracy of ground states. The magnetic order of MgCr2O4 - apparently... -
New apparatus for neutron diffraction under uniaxial pressure.
We propose to test new apparatus for the magnetic neutron diffraction under uniaxial pressure on WISH diffractometer. The main feature of our apparatus is that the sample is not... -
Spin orders in CaxMn2-xFeReO6 double perovskites
New manganese-based double perovskites Mn2-xCaxFeReO6 have been synthesised at high pressure. Mn2FeReO6 has spin-active cations at all sites; S = 5/2 Mn2+, S = 5/2 Fe3+ and S =... -
Neutron diffraction study of the tertragonal Ce-based ferromagnet CeRu2Al2B
Recently we did muon spin relaxation (µSR) and inelastic neutron scattering (INS) measurements on the newly discovered tertragonal Ce-based ferromagnet CeRu2M2B (M = Al and Ga)... -
Impurity substitution effect on magnetic orderings in frustrated triangular l...
We propose to perform neutron powder diffraction experiments on the frustrated triangular lattice anitferromagnet AgFe1-xAlxO2 on WISH. Recently, we have studied magnetic... -
Magnetoelastic coupling effect on multiferroic behaviors in different types o...
We propose to perform high resolution neutron diffraction on powder samples of the frustrated antiferromagnets Ag1-xCuxFe1-yGayO2 using HRPD. CuFe1-yGayO2 and AgFeO2 have... -
High pressure and high temperature stabilized bismuth based multiferroic rela...
The new compound Bi2CoTiO6 is synthesized using high pressure - high temperature techniques. Its properties were characterized by X-ray diffraction, magnetic measurements, and... -
Neutron diffraction study on reentrant superconductor Eu(Fe1-xIrx)2As2
We observed reentrant superconductivity (SC) in Ir doped EuFe2As2 near 22 K in both resistivity and susceptibility. For the optimally doped sample, we witnessed two distinct... -
Skyrmion-like structures induced by copper doping in multiferroic CaCuxMn7-xO12
Multiferroic CaMn7O12 possesses giant magnetically induced ferroelectricity at relatively high temperatures - key properties for technological application. X-ray and neutron... -
Investigations of some potentially multiferroic/magnetoelectric rare earth ta...
Multiferroics - where ferroelectric and magnetic orders co-exist - continue to be of technological and scientific importance, and of particular interest are the improper... -
Ground state magnetic structure of EuCuAs
One of the major themes in solid-state physics is the realisation of exotic types of relativistic electrons which travel at speeds much slower than the speed of light. These... -
Multiferroicity at high magnetic fields
CuFeO2 is a geometrically frustrated triangular lattice system. At low temperatures it shows a number of different spin orders with applied magnetic field. CuFeO2 also has a... -
Investigation of Bose-Einstein condensation of magnons through temperature-fi...
YbAl3C3 exhibits a spin gap formation due to spin dimer ground state below 10 K. In zero-field the ground state is paramagnetic and no sign of long range magnetic ordering down... -
Structure and Magnetism of Rb1-xFe2F6: Tuning the Valence of Charge-Ordered K...
We have recently discovered a new family of geometric frustrated magnets starting from the parent system, RbFe2F6, with crystallizes in the defect or β-pyrochlore structure... -
Search for magnetic order in the coupled S=1/2 two-leg spin ladder system Ba2...
Ba2CuTeO6 is a newly discovered S=1/2 spin ladder system containing Cu2+ ladders. Our experiments indicate that this material is in very close proximity to the quantum critical... -
Magnetic ordering in the frustrated honeycomb antiferromagnet Li2IrO3
This proposal is part of our research programme to explore novel ground states in frustrated quantum magnets. Strong spin-orbit coupling is predicted to stabilize composite... -
Neutron diffraction study of the buckled kagome-lattice Cu3R(SeO3)2O2Cl (R=Yb...
The experimental realization of a S=1/2 kagome lattice has been one of the holy grail of frustrated magnetism because when all antiferromagnetic exchanges cannot be satisfied, a... -
Magnetoelastic Coupling and for Competing Ground States in (Ba1-xAx)Fe2As2 (A...
Unconventional superconductivity has recently been suggested in the new class of iron-based superconductors in which unusual gap symmetries have been observed together with... -
Diffraction paten of a Heisenberg-Kitaev Quantum Spin Liquid candidate Li2RhO3
We propose to continuous our investigation of the magnetic diffraction pattern of the potential Kitaev spin liquid compound Li2RhO3. Moderate spin orbit coupling in the Rh4+ ion... -
Structure and magnetic order of the diamond-kagome planar compound Cu2OSO4
Materials with antiferromagnetic interactions between spins on a triangle lattice inherently exhibit large frustration between similar energy ground states giving rise to novel...