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Kinks, Nodal Bilyaer Splitting, and Interband Scattering in YBCO

Kinks, Nodal Bilyaer Splitting, and Interband Scattering in YBCO. Sergey V. Borisenko. “Self-organized Strongly Correlated Electron Systems” 29 May, 2006 , Seillac, France. THANKS TO:. Alexander Kordyuk. Martin Knupfer. Andreas Koitzsch. Jörg Fink. Volodymyr Zabolotnyy. Bernd Büchner.

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Kinks, Nodal Bilyaer Splitting, and Interband Scattering in YBCO

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  1. Kinks, Nodal Bilyaer Splitting, and Interband Scattering in YBCO Sergey V. Borisenko “Self-organized Strongly Correlated Electron Systems” 29 May, 2006, Seillac, France

  2. THANKS TO: Alexander Kordyuk Martin Knupfer Andreas Koitzsch Jörg Fink Volodymyr Zabolotnyy Bernd Büchner Dmitriy Inosov Jochen Geck Roland Hübel

  3. THANKS TO: Bernhard Keimer, Chengtian Lin, Vladimir Hinkov MPI Stuttgart Yoichi Ando, Shimpei Ono, Seiki Komiya CRIEPI Tokyo Andreas Erb WMI Garching Helmut Berger EPFL Lausanne Rolf Follath BESSY Sorin Chiuzbaian, Luc Patthey SLS Andrey Chubukov U Wisconsin Ilya Eremin MPI Dresden Money DFG (Forschergruppe 538) BMBF ("Highest resolution ARPES") EU (LSF Programme)

  4. Angle-Resolved Photoemission Spectroscopy

  5. LEED patterns Pb-BSCCO YBCO LSCO

  6. Energy S² S² w W w Recipe Bare band structure Auger decay Bosons

  7. Self-energy Energy Energy

  8. A B С Agreement with experiment B A C Energy Inosov, Zabolotnyy et al.

  9. G (w,k) INS RAMAN STM

  10. LEED patterns Pb-BSCCO YBCO LSCO

  11. Chain states Fermi surface of YBCO O. K. Andersen et al.

  12. Fermi surface of YBCO

  13. Electronic structure of YBCO

  14. Electronic structure of YBCO

  15. Nodal bilayer splitting

  16. S Г X Y S Some of the previous work on YBCO Chain/SS Chain antibonding bonding K. Gofron et al., J. Phys. Chem. Solids 54, 1193 (1993) ? M. C. Schabel et al., Phys. Rev. B 57, 6090 (1998) SC peak “hump” Surf. State Chain D. H. Lu et al., Phys Rev. Lett 86, 4370(2001) D. H. Lu et al., Phys Rev. Lett 86, 4370(2001)

  17. YBCO: Gap? Doping level? YBCO 6.85 ~N ~A

  18. 19 meV Electronic structure of YBCO

  19. Temperature dependence. V. Zabolotnyy et al.

  20. Superconducting component antibonding bonding overdoped sum experiment superconducting // Model: =0.5*(ABSC + ABN) + BBSC + BBN + Background V. Zabolotnyy et al.

  21. e- e- d=0.30 d=0.16

  22. d=0.16 d=0.16 Edwards et al, Phys. Rev. Lett. 70, 2967 (1992) d=0.02 d=0.30

  23. ~12 A

  24. Momentum dependence of the renormalization in YBCO-6.6 Momentum, kx Momentum, ky V. Zabolotnyy et al.

  25. Superconducting gap: anisotropy V. Zabolotnyy et al.

  26. Momentum dependence in Ca-YBCO 200510 SLS\Ca-YBCO Momentum, kx Momentum, ky Experiment Model V. Zabolotnyy et al.

  27. Temperature dependence in Ca-YBCO. 2005 10 SLS\Ca-YBCO files 014-21 V. Zabolotnyy et al.

  28. hn=50eV hn=53eV hn=55eV Kinks in YBCO: nodal direction PRL 06 c

  29. Kinks in YBCO: nodal direction Momentum (Å-1) PRL 06 c

  30. P. Bourges, B. Keimer et al. Kinks in YBCO as a function of doping PRL 06 c

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