240 citations · 1.8k across the 58 of their papers we have counts for
16 papers · 1 filter
Energy-dependent crossover from anisotropic to isotropic magnetic dispersion in lightly-doped La1.96Sr0.04CuO4
M. Matsuda, G. E. Granroth, M. Fujita +2
Inelastic neutron scattering experiments have been performed on lightly-doped LaSrCuO, which shows diagonal incommensurate spin correlations at low temperat…
Low energy, quasi-one-dimensional, spin dynamics in charge-ordered La(2-x)Sr(x)NiO(4)
P. G. Freeman, D. Prabhakaran, K. Nakajima +5
The low energy spin excitations of La(2-x)Sr(x)NiO(4), x = 0.275 and 1/3, have been investigated by unpolarized- and polarized-inelastic neutron scattering from single crystals. A…
Gigantic Impact of Magnetic Impurity on Stripe Order in LaSrCuO (1/8)
M. Fujita, M. Enoki, S. Iikubo +3
Precise neutron-scattering experiments on LaSrCuRO (=0 for R=Cu, Zn and =0.01 for R=Ga, Fe) were performed to examine the stabilit…
Charge excitations associated with charge stripe order in the 214-type nickelate and superconducting cuprate
S. Wakimoto, H. Kimura, K. Ishii +10
Charge excitations were studied for stipe-ordered 214 compounds, LaSrNiO and 1/8-doped La(Ba, Sr)CuO using resonant inelastic x-ray scatteri…
NMR study on the local structure in La-based high-Tc cuprates
T. Goto, J. Tonishi, T. Suzuki +5
To date, there has been no evidence for the macroscopic structural phase transition to the low temperature tetragonal structure (LTT) with a space group P42/ncm in high-TC cuprate…
Momentum-resolved charge excitations in high-Tc cuprates studied by resonant inelastic x-ray scattering
K. Ishii, M. Hoesch, T. Inami +14
We report a Cu K-edge resonant inelastic x-ray scattering (RIXS) study of high-Tc cuprates. Momentum-resolved charge excitations in the CuO2 plane are examined from parent Mott ins…
Doping Dependence of Low-energy Spin Fluctuations in Electron-Doped Cuprates PrLaCeCuO
M. Fujita, M. Matsuda, S. -H. Lee +2
The low-energy spin fluctuations in the electron-doped PrLaCeCuO have been investigated over a wide concentration range of 0.07 0.18 t…
Distinct doping dependences of the pseudogap and superconducting gap LaSrCuO cuprate superconductors
M. Hashimoto, T. Yoshida, K. Tanaka +7
We have performed a temperature-dependent angle-integrated photoemission study of lightly-doped to heavily-overdoped LaSrCuO and oxygen-doped LaCuO.…
Evidence for non-conventional pairing in NaCoOyHO
Jean-Pascal Rueff, M. Calandra, M. D'astuto +10
We report on first investigation of the lattice dynamics in the novel superconducting material NaCoO1.3HO and the non-hydrated parent compound Na$\_{0.7}…
Large magnetic field-induced spectral weight enhancement of high-energy spin excitations in
L. H. Machtoub, B. Keimer, K. Yamada
We report electronic Raman scattering experiments on a superconducting single crystal in a magnetic field. At low temperatures, the spectral weigh…
Spin excitations in stripe-ordered La2-xSrxNiO4 (x=0.275 and 1/3)
A. T. Boothroyd, P. G. Freeman, D. Prabhakaran +5
We report neutron scattering measurements of the spectrum of magnetic excitations in the stripe-ordered phase of La2-xSrxNiO4 (x=0.275 and 1/3). The propagating spin excitations fo…
Magnetic field effects and magnetic anisotropy in lightly doped La_{2-x}Sr_xCuO_4
M. Matsuda, M. Fujita, K. Yamada +3
The effects of the application of a magnetic field on the diagonal stripe spin-glass phase is studied in lightly doped La_{2-x}Sr_xCuO_4 (x=0.014 and 0.024). With increasing magnet…
Transmission-electron-microscopy study of charge-stripe order in La(1.725)Sr(0.275)NiO(4)
Jianqi Li, Yimei Zhu, J. M. Tranquada +2
We characterize the local structure and correlations of charge stripes in La(1.725)Sr(0.275)NiO(4) using transmission-electron microscopy. We present direct evidence that the strip…
Electronic phase separation in lightly-doped LaSrCuO
M. Matsuda, M. Fujita, K. Yamada +3
The hole concentration dependence of the magnetic correlations is studied in very lightly-doped LaSrCuO (0.02), which shows coexistence of a three-dimensional a…
Magnetic frustrations in the face centered cubic antiferromagnet NiS2
M. Matsuura, Y. Endoh, H. Hiraka +5
Neutron scattering experiment on NiS2 single crystal revealed a honeycomb pattern of the intensity distribution in reciprocal lattice space (continuous-line structure along the fcc…
Charge and Spin Order in La2-xSrxNiO4 (x=0.275 and 1/3)
S. -H. Lee, S-W. Cheong, K. Yamada +1
We report polarized and unpolarized neutron diffraction measurements on La2-xSrxNiO4 (x=0.275 and 1/3). The data for the spin ordered states are consistent with a collinear spin mo…