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Phase Diagram of Ba1-xKxFe2As2
In the new class of iron pnictide superconductors, there is evidence of phase coexistence close to the phase boundary between the SDW and superconducting order produced by hole... -
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... -
Chiral Magnetism in the room temperature skyrmion-carrying material CoZn
Chiral skyrmions are one of the most active areas of research in magnetism. A skyrmion is a topological stable soliton in which outer spins lie parallel to the applied field and... -
Magneto-orbital coupling in PbMn7-xFexO12
The interplay between orbital order and magnetism in insulating manganites has been extensively studied following the seminal neutron diffraction experiments of Wollan and... -
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... -
Structure-property relation in integer-spin quantum magnets
Our objective is to determine how changes in symmetry affect the magnetic ground state of spin-1 magnets. Low-dimensional S=1 systems are believed to support rich phase diagrams... -
Pressure effect on high-temperature multiferroic CuO studied by a single crys...
We propose to perform neutron diffraction experiment under high pressure condition, using a single crystal of CuO on WISH beamline. This monoxide is known as a multiferroic... -
Doping dependence of the lattice and magnetic structures in La(2-x)Sr(x)CuIrO6
Double-perovskite iridates attract attention as they combine 5d and 3d magnetism, where spin-orbit coupling plays a significant role in determining a magnetic ground states.... -
Neutron analysis of the structure of SrAl2O4 from 300 to 1273 K.
SrAl2O4 is a stuffed tridymite that has attracted a good deal of interest, since doping with Eu2+ leads to a material with elastic-luminescent response. The structure and phase... -
In-situ Specific Heat Measurements and Order Disorder Phase Transition Studie...
We request 4 days on HRPD to perform combined specific heat and neutron powder diffraction measurements of C60 and the molecular hydrogen storage materials, ammonia borane and... -
Novel quantum spin liquid state in the S=3/2 dimer lattice in Ba3ZnRu2O9
We have discovered a novel type of quantum spin liquid in a hexagonal lattice of Ru5+ dimers in Ba3ZnRu2O9, where any traces of the Curie tail or glassy behavior have not been... -
Neutron diffraction on filled ices with C_0 structure prepared between 3 and ...
The proposing team has a well established experience in the study on samples containingH_2 and D_2. Our recent neutron spectroscopic results on sII and sH H_2-filled clathrate... -
Entangled superconductivity and magnetic and charge density waves in A1-xA'xF...
We aim to study select samples of hole and electron doped (A,A')(Fe,B)2As2 (A=Ba, Sr, or Ca; A'=Na, K and B=Co, Ni, or Pt) iron pnictides. These materials exhibit robust... -
Investigation of Jahn-Teller assisted polaron collapse beyond the percolation...
Polaron-mediated colossal magneto-resistance (CMR) was predicted decades ago but never been experimentally established unambigously, despite the 'universal' existence of...
