127 citations · 383 across the 16 of their papers we have counts for
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Superconducting pairing and the pseudogap in nematic striped La2-xSrxCuO4
S. Sugai, Y. Takayanagi, N. Hayamizu +5
The individual k\parallel and k\perp stripe excitations in fluctuating spin-charge stripes have not been observed yet. In Raman scattering if we set, for example, incident and scat…
Raman Studies of Anisotropic Magnetic Excitations in Fluctuating Nematic Striped La2-xSrxCuO4 and the Comparison to Uniform Nd2-xCexCuO4
S. Sugai, Y. Takayanagi, N. Hayamizu +3
The mechanism of the high temperature hole-doped superconductivity was investigated by Raman scattering. The Raman selection rule is unique, so that anisotropic magnetic excitation…
Real time measurement of the emergence of superconducting order in a high temperature superconductor
I. Madan, P. Kusar, V. V. Baranov +4
Systems which rapidly evolve through symmetry-breaking transitions on timescales comparable to the fluctuation timescale of the single-particle excitations may behave very differen…
Strain-induced enhancement of the electron energy relaxation in strongly correlated superconductors
C. Gadermaier, V. V. Kabanov, A. S. Alexandrov +12
We use femtosecond optical spectroscopy to systematically measure the primary energy relaxation rate k1 of photoexcited carriers in cuprate and pnictide superconductors. We find th…
Spin-Density-Wave Gap with Dirac Nodes and Two-Magnon Raman Scattering in BaFe2As2
Shunji Sugai, Yuki Mizuno, Ryoutarou Watanabe +6
Raman selection rules for electronic and magnetic excitations in BaFe2As2 were theoretically investigated and applied them to the separate detection of the nodal and anti-nodal gap…
Magnetic and Electronic Raman Scattering at the Nodal Spin-Density-Wave Transition in BaFe2As2
S. Sugai, Y. Mizuno, R. Watanabe +6
Two magnon excitations and the nodal spin density wave (SDW) gap were observed in BaFe2As2 by Raman scattering. Below the SDW transition temperature (TSDW) nodal SDW gap opens toge…
Phonon, Two-Magnon and Electronic Raman Scattering of Fe1+yTe1-xSex
K. Okazaki, S. Sugai, S. Niitaka +1
We have measured Raman scattering spectra of single-crystalline FeTe0.6Se0.4 (T_c ~ 14.5 K) and its parent compound Fe1.074Te at various temperatures. In the parent compound Fe1.07…
Controlled vaporization of the superconducting condensate in cuprate superconductors sheds light on the pairing boson
P. Kusar, V. V. Kabanov, S. Sugai +3
We use ultrashort intense laser pulses to study superconducting state vaporization dynamics in La(2-x)Sr(x)CuO4 (x=0.1 and 0.15) on the femtosecond timescale. We find that the ener…
Isotope Effect on the Superconducting Transition Temperature of NaxCoO2.yH2O
Mai Yokoi, Yoshiaki Kobayashi, Masatoshi Sato +1
The effect of the 16O-->18O substitution on the superconducting transition temperatures Tc of NaxCoO2.yH2O has been studied for several sets of samples. Each set has two kinds of s…
Anisotropic charge transfer mechanism in LaSrCuO and BiSrCaYCuO
S. Sugai, N. Hayamizu, T. Hosokawa
Raman spectra of LaSrCuO are similar to those of BiSrCaCuO except for the split two-magnon peaks at the stripe phase and the stronger step-like…
Dynamical stripe structure in LaSrCuO observed by Raman scattering
S. Sugai, N. Hayamizu
The dynamical stripe structure relating to the "1/8 problem" was investigated in LaSrCuO utilizing the high frequency response of Raman scattering. The split of the…
Difference between the cleaved surface and the polished surface on the Raman spectra of LaSrCuO
S. Sugai, Y. Takayanagi, N. Hayamizu
The Raman spectra on the cleaved surface of LaSrCuO is found to be different from those on the mechanically polished or chemically etched surface. On the cleaved su…
Relation between the superconducting gap energy and the two-magnon Raman peak energy in Bi2Sr2Ca{1-x}YxCu2O{8+δ}
S. Sugai, T. Hosokawa
The relation between the electronic excitation and the magnetic excitation for the superconductivity in Bi2Sr2Ca{1-x}YxCu2O{8+δ} was investigated by wide-energy Raman spectroscopy.…