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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... -
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... -
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... -
The magnetic structures of RMn7O12 (R = Nd, Sm, Dy, Y)
Materials with the perovskite crystal structure are ubiquitous in condensed matter physics. Despite being known for several years, the quadruple perovskites, which afford... -
Neutron diffraction studies of the type of orbital ordering and spin structur...
Our aim is to investigate the evolution of super-lattice structure (i.e. charge/orbital ordered phase) as well as the associated magnetic structure in SrMn1-xWxO3 (x=0.1375... -
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... -
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... -
Evolution of long-range magnetic order in [Ni(HF2)(pyrazine)2]X (X = PF6 , Sb...
Antiferromagnetic S = 1 one-dimensional chains exhibit a myriad of magnetic ground states depending on the balance between the spin exchange parameter and the single-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... -
The magnetic structure of a perovskite like coordination polymer {[Cu(HCOO)3]...
This study is designed to identify relationships between structure and magnetic properties characteristic of coordination polymers (CPs). By determining the ground state 3D... -
High-pressure effect on the magnetic ordering in frustrated antiferromagnet C...
Test of the NIMS low temperature pressure cell on WISH. -
Nuclear and magnetic structural investigation of single crystalline and powde...
Recent single crystal work on α-CoV2O6 has found a significant enhancement of the nuclear Bragg peaks on entering the low temperature antiferromagnetic states. This... -
Magnetic order in anisotropic topological insulators (Sr,Ca)MnBi2
The electronic dispersion of "Dirac" materials such as graphene and topological insulators is linear, resulting in a variety of peculiar electronic properties. In graphene and... -
Investigation of the correlations above TN in PdCrO2
In recent years there has been a large interest in geometrically frustrated magnetic systems, especially those with spins interacting on two-dimensional triangular lattices... -
The Effect of Pressure on the Low Temperature Magnetic Structure of the CMR M...
Colossal magnetoresistance (CMR) is observed in the oxypnictide NdMnAsO1-xFx (x = 0 - 0.085) at low temperature. The CMR in NdMnAsO1-xFx arises due to competition between a... -
Nuclear and magnetic structure determination of Pb4MnReO13 and Pb2MnReO6
Lead based oxides are wildly used in material science in order to obtain non-centrosymmetric structures that eventually lead to polar or piezoelectric distortion, which coupled... -
Verification of extended inverse Dzyloshinskii-Moriya mechanism by comparison...
We propose to perform neutron diffraction experiments on single crystals, 3R-AgFeO2 and 2H-AgFeO2 on WISH. Recently, we have studied magnetic orderings and ferroelectricity of...