Direct observation of particle-hole mixing in the superconducting state by angle-resolved photoemission

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.R14737· OSTI ID:284714

Campuzano, J C; Ding, H ^[1]; Norman, M R ^[1]; Randeira, M ^[1]; Bellman, A F ^[1]; Yokoya, T; Takahashi, T; Katayama-Yoshida, H ^[2]; Mochiku, T; Kadowaki, K ^[3]

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1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Department of Physics, Tohoku University, 980 Sendai (Japan)
3. National Research Institute for Metals, Sengen, Tsukuba, Ibaraki 305 (Japan)

Particle-hole ({ital p}-{ital h}) mixing is a fundamental consequence of the existence of a pair condensate. We present direct experimental evidence for {ital p}-{ital h} mixing in the angle-resolved photoemission (ARPES) spectra in the superconducting state of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}. In addition to its pedagogical importance, this establishes unambiguously that the gap observed in ARPES is associated with superconductivity. {copyright} {ital 1996 The American Physical Society.}

• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 284714
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 22 Vol. 53; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
ELECTRONS
ENERGY GAP
HIGH-TC SUPERCONDUCTORS
HOLES
PAIRING INTERACTIONS
PHOTOEMISSION
STRONTIUM OXIDES