Unconventional Electronic Structure Evolution with Hole Doping in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>Bi</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi>Sr</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi>CaCu</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi>O</mi></mrow><mrow><mn>8</mn><mo>+</mo><mi>δ</mi></mrow></msub></mrow></math></span>: Angle-Resolved Photoemission Results

D. S. Marshall; D. S. Dessau; A. G. Loeser; C-H. Park; A. Y. Matsuura; J. N. Eckstein; I. Bozovic; P. Fournier; A. Kapitulnik; W. E. Spicer; Z.-X. Shen

doi:10.1103/PhysRevLett.76.4841

Unconventional Electronic Structure Evolution with Hole Doping in ${Bi}_{2} {Sr}_{2} {CaCu}_{2} O_{8 + δ}$ : Angle-Resolved Photoemission Results

D. S. Marshall, D. S. Dessau, A. G. Loeser, C-H. Park, A. Y. Matsuura, J. N. Eckstein, I. Bozovic, P. Fournier, A. Kapitulnik, W. E. Spicer, and Z.-X. Shen

Phys. Rev. Lett. 76, 4841 – Published 17 June 1996

Abstract

We report angle-resolved photoemission results on ${Bi}_{2} {Sr}_{2} {Ca}_{1 - x} {Dy}_{x} {Cu}_{2} O_{8 + δ}$ and oxygen depleted ${Bi}_{2} {Sr}_{2} {CaCu}_{2} O_{8 + δ}$ investigating the electronic structure changes above $T_{c}$ in materials with hole doping levels ranging from insulating to slightly overdoped. Near optimal hole doping, the Fermi surface is large and consistent with band calculations. In underdoped samples with $T_{c}$ of 60–70 K, portions of this Fermi surface are not seen. This change is related to the opening of an energy gap near $(π, 0)$ above $T_{c}$ .

Received 5 December 1995

DOI:https://doi.org/10.1103/PhysRevLett.76.4841

Authors & Affiliations

D. S. Marshall¹, D. S. Dessau^1,2,5, A. G. Loeser^1,2, C-H. Park^1,2, A. Y. Matsuura¹, J. N. Eckstein³, I. Bozovic³, P. Fournier⁴, A. Kapitulnik⁴, W. E. Spicer¹, and Z.-X. Shen^1,2,4

¹Solid State Laboratory, McCullough 251, Stanford University, Stanford, California 94305
²Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94305
³Ginzton Research Center, Varian Associates, Palo Alto, California 94304-1025
⁴Department of Applied Physics, Stanford University, Stanford, California 94305
⁵Department of Physics, University of Colorado, Boulder, Colorado 80309