Haruhiro Hiraka

Static magnetic correlations near the insulating-superconducting phase boundary in La2-xSrxCuO4

An elastic neutron scattering study has been performed on several single crystals of La

Low symmetry phase in (001) BiFeO3 epitaxial constrained thin films

_{2-x}

Static and dynamic spin correlations in the spin-glass phase of slightly doped La{sub 2-x}Sr{sub x}CuO{sub 4}

Sr

Relationship between Structure and Superconductivity in FeSe1-xTex

_{x}

First Investigation of Pressure Effects on Transition from Superconductive to Metallic Phase in FeSe0:5Te0:5

CuO

Hydrogen Ordering and New Polymorph of Layered Perovskite Oxyhydrides: Sr2VO4–xHx

_{4}

Oxygen phonon branches in YBa2Cu3O7

for {\it x} near the lower critical concentration {\it x

High Intensity Chopper Spectrometer 4Seasons At J-parc

_{c}

Spin fluctuations in the underdoped High-Tc cuprate La1.93Sr0.07CuO4

} for superconductivity. % In the insulating spin-glass phase ({\it x} = 0.04 and 0.053), the previously reported one-dimensional spin modulation along the orthorhombic {\it b}-axis is confirmed. % Just inside the superconducting phase ({\it x} = 0.06), however, two pairs of incommensurate magnetic peaks are additionally observed corresponding to the spin modulation parallel to the tetragonal axes. % These two types of spin modulations with similar incommensurabilities coexist near the boundary. % The peak-width

Ferromagnetic Transition of Heisenberg Ferromagnetic Metal of CoS2 –Static Critical Properties–

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