RESEARCH OF THE ELECTRONIC STRUCTURE AND ELECTRONIC PROPERTIES OF THE METALLIC MONOLAYER ON THE SURFACE OF THE HIGH-TEMPERATURE SUPERCONDUCTOR BY ANGLERESOLVED PHOTOEMISSION SPECTROSCOPY (REWIEV OF EXPERIMENTAL PAPERS)

Abstract

By means of angle-resolved photoemission spectroscopy (ARPES) there had been carried out the detailed comparative study of the series of YBCO samples with different charge carrier concentration (from 0.05 to 0.25 holes per unit cell) doped by oxygen and calcium is carried out. It is shown that the photoemission spectrum, as a rule, consists of two components: metallic and superconducting, which represent the signals from the first surface CuO2 bilayer and bulk. By the analysis of the spectra received these bulk and surface signals are separated and peculiarities of their electronic properties are researched.

REFERNCES

1. V Zabolotnyy V. B. Momentum and temperature dependence of renormalization effects in the hightemperature superconductor Yba2Cu3O7?d / V. B. Zabolotnyy, S. V. Borisenko, A. A. Kordyuk et al. // Phys. Rev. – 2007. – B 76. – Р. 064519 (1 – 5).

2. Kordyuk A. A. Constituents of the quasiparticle spectrum along the nodal direction of high-Tc cuprates / A. A. Kordyuk, S. V. Borisenko, V. B. Zabolotnyy et al. // Phys. Rev. – 2006. – Lett. 97. – P. 017002 (1 – 4).

3. Gofron K. Occurrence of van Hove singularities in YBa2Cu4O8 and YBa2Cu3O6.9 / K. Gofron, J. C. Campuzano, H. Ding et al. // J. Phys. – 1993. – Chem. Solids. 54. – P. 1193 – 1198.

4. Schabel M. C. Angle-resolved photoemission on untwinned YBa2Cu3O6.95. I. Electronic structure and dispersion relations of surface and bulk bands / M. C. Schabel, C.-H. Park, A. Matsuura, Z.-X. Shen, D. A. Bonn // Phys. Rev. – 1998. – B 57. – P. 6090 (1 – 4).

5. Schabel M. C. Angle-resolved photoemission on untwinned YBa2Cu3O6.95. II. Determination of Fermi surfaces / M. C. Schabel, C.-H. Park, A. Matsuura, Z.-X. Shen, D. A. Bonn, Ruixing Liang, and W. N. Hardy // Phys. Rev – 1998. – B 57. – P. 6107 (1 – 6).

6. Lu D. H. Superconducting Gap and Strong In-Plane Anisotropy in Untwinned Yba2Cu3O7-d / D. H. Lu, D. L. Feng, N. P. Armitage, K. M. Shen, A. Damascelli, C. Kim, F. Ronning, Z.-X. Shen, D. A. Bonn, R. Liang, W. N. Hardy, A. I. Rykov, and S. Tajima // Phys. Rev. – 2001. – Lett. 86. – P. 4370 (1 – 5).

7. Andersen O. K. LDA energy bands, low-energy hamiltonians, t', t_p, t (k), and J / O. K. Andersen, A. I. Lichtenstein, O. Jepsen, and F. Paulsen // J. Phys. – 1995. – Chem. Solids. 56. – P. 1573 – 1578. 

8. Kordyuk A. A. Evidence for CuO conducting band splitting in the nodal direction of Bi2Sr2CaCu2O8+d / A. A. Kordyuk, S. V. Borisenko, A. N. Yaresko et al. // Phys. Rev. – 2004. – B. 70. – P. 214525 (1 – 5).

9. Luttinger J. M. Fermi Surface and Some Simple Equilibrium Properties of a System of Interacting Fermions / J. M. Luttinger // Phys. Rev. – 1960. – 119. – P. 1153 (1 – 4).

10. Borisenko S. V. Anomalous Enhancement of the Coupling to the Magnetic Resonance Mode in Underdoped PbBi2212 / S. V. Borisenko, A. A. Kordyuk, T. K. Kim, A. Koitzsch, M. Knupfer, M. S. Golden, J. Fink, M. Eschrig, H. Berger, and R. Follath // Phys. Rev. – 2003. – Lett. 90. – P. 207001 (1 – 6).