Phonon role in superconductivity of La2−xSrxCuO4 studied by inelastic x-ray scattering
نویسندگان
چکیده
Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute (JAERI), SPring-8, Mikazuki, Hyogo 679-5148, Japan Institute for Chemical Research, Kyoto University, Gokasho, Uji, 611-0011, Japan Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Mikazuki, Hyogo 679-5198, Japan Institute of Physical and Chemical (RIKEN), SPring-8, Mikazuki, Hyogo 679-5148, Japan Institute for Materials Research (IMR), Tohoku University, Sendai 980-8577, Japan
منابع مشابه
Observation of a 500 meV collective mode in La2-xSrxCuO4 and Nd2CuO4 using resonant inelastic X-ray scattering.
Utilizing resonant inelastic x-ray scattering, we report a previously unobserved mode in the excitation spectrum of La2-xSrxCuO4 and Nd2CuO4 at 500 meV. The mode is peaked around the (pi, 0) point in reciprocal space and is observed to soften, and broaden, away from this point. Samples with x=0, 0.01, 0.05, and 0.17 were studied. The new mode is found to be rapidly suppressed with increasing Sr...
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تاریخ انتشار 2003