S. Sugai
American Petroleum Institute
8 Papers
82 Citations
S. Sugai is an academic researcher from American Petroleum Institute. The author has contributed to research in topics: Optical conductivity & Scattering. The author has an hindex of 4, co-authored 8 publications. Previous affiliations of S. Sugai include Nagoya University.
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Papers
Precise Measurement of Optical Reflectivity Spectra Using Defect-Free Surface of La(1-x)Sr(x)MnO(3): Evidence Against Extremely Small Drude Weight
TL;DR: In this article, the optical conductivity of ferromagnetic-metal La(0.70)Sr(x)MnO(3) is characterized by a Drude-like component with large spectral weight below 1.6 eV, which yields a large effective carrier number consistent with the results of Hall coefficient and specific heat measurements.
48
Superconducting pairing and the pseudogap in the nematic dynamical stripe phase of La2−xSrxCuO4
S. Sugai,Y. Takayanagi,N. Hayamizu,T. Muroi,R. Shiozaki,J. Nohara,Koshi Takenaka,Kozo Okazaki +7 more
TL;DR: The present Raman data suggest that Cooper pairs are formed at moving edge dislocations of dynamical charge stripes in anisotropic magnetic excitations of spin-charge stripes.
21
Optical Spectra Measured on Cleaved Surfaces of Double‐Exchange Ferromagnet La1—xSrxMnO3
TL;DR: In this paper, the authors measured the reflectivity spectra on cleaved surfaces of La1-SrxMnO3 single crystals (x=0.175, T_C=283 K) over a temperature range 10-295 K.
6
Raman Studies of Anisotropic Magnetic Excitations in Fluctuating Nematic Striped La2−xSrxCuO4 and the Comparison to Uniform Nd2−xCexCuO4
TL;DR: In this paper, the authors investigated the mechanism of the high temperature hole-doped superconductivity by Raman scattering and showed that the superconducting coherence length is close to the intercharge stripe distance at x < 0.2.
4
Optical spectra measured on cleaved surfaces of double-exchange ferromagnet La1-xSrxMnO3
TL;DR: In this paper, the authors measured the reflectivity spectra on cleaved surfaces of La1-SrxMnO3 single crystals (x=0.175, T_C=283 K) over a temperature range 10-295 K.
3