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Your search keyword '"Katayama-Yoshida H"' showing total 13 results
Start Over Author "Katayama-Yoshida H" Journal physical review letters
13 results on '"Katayama-Yoshida H"'

1. Momentum Distribution Sum Rule for Angle-Resolved Photoemission

Author

Randeria, Mohit, Ding, Hong, Campuzano, J-C., Bellman, A., Jennings, G., Yokoya, T., Takahashi, T., Katayama-Yoshida, H., Mochiku, T., and Kadowaki, K.

Subjects
ComputingMethodologies_DOCUMENTANDTEXTPROCESSING
Abstract

application/pdf, Within a spectral function A(k,ω) interpretation of angle-resolved photoemission (ARPES), the intensity obeys the sum rule ∫dω f(ω)A(k,ω) = n(k), where f is the Fermi function and n(k) the momentum distribution. We show the usefulness of this sum rule for analyzing ARPES data. The integrated intensity in Bi2Sr2CaCu2O8 at kF is independent of temperature even though the spectrum is strongly T dependent. We also demonstrate the possibility of measuring n(k) using ARPES for YBa2Cu4O8.

Published
1995

2. Momentum Dependence of the Superconducting Gap in Bi2Sr2CaCu2O8

Author

Ding, H., Campuzano, J. C., Bellman, A. F., Yokoya, T., Norman, M. R., Randeria, M., Takahashi, T., Katayama-Yoshida, H., Mochiku, T., Kadowaki, K., and Jennings, G.

Subjects
ComputingMethodologies_DOCUMENTANDTEXTPROCESSING
Abstract

application/pdf, We measure the momentm dependence of the superconducting gap along the Fermi surface of Bi2Sr2CaCu2O8 by high resolution angle-resolved photoemission spectroscopy. The gap is large in the vicinity of the M̅ point (where γ- M̅ is along the Cu-O bond), and small along the γ- X and γ- Y (π,π) directions. However, the gap is not zero along these directions, but, within our accuracy, becomes zero about 10∘ on either side of the (π,π) directions. We discuss the implications of these results for the symmetry of the order parameter.

Published
1995

3. Yokoyaet al.Reply

Author

Yokoya, T., primary, Chainani, A., additional, Takahashi, T., additional, Katayama-Yoshida, H., additional, Kasai, M., additional, and Tokura, Y., additional

Published
1997
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