Destruction of the Fermi surface in underdoped high-T(c) superconductors

M. R. Norman, H. Ding, M. Randeria, J. C. Campuzano, Takayoshi Yokoya, T. Takeuchi, T. Takahashi, T. Mochiku, K. Kadowaki, P. Guptasarma, D. G. Hinks

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Abstract

The Fermi surface - the set of points in momentum space describing gapless electronic excitations - is a central concept in the theory of metals. In this context, the normal 'metallic' state of the optimally doped high-temperature superconductors is not very unusual: above the superconducting transition temperature, T(c), there is evidence for a large Fermi surface1-3 despite the absence of well-defined elementary excitations. In contrast, the normal state of underdoped high-temperature superconductors differs in that there is evidence for a 'pseudogap' above T(c) (refs 4-6). Here we examine, using angle-resolved photoemission spectroscopy, the temperature dependence of the Fermi surface in underdoped Bi2Sr2CaCu2O(8+δ). We find that, on cooling the sample, the pseudo-gap opens up at different temperatures for different points in momentum space. This leads to an initial breakup of the Fermi surface, at a temperature T*, into disconnected arcs, which then shrink with decreasing temperature before collapsing to the point nodes of the superconducting ground state below T(c). This unusual behaviour, where the Fermi surface does not form a continuous contour in momentum space as in conventional metals, is unprecedented in that it occurs in the absence of long-range order. Moreover, although the superconducting gap below T(c) evolves smoothly into the pseudogap above T(c), the pseudogap differs in its unusual temperature-dependent anisotropy, implying an intimate but non-trivial relationship between the pseudo-gap and the superconducting gap.

Original languageEnglish
Pages (from-to)157-160
Number of pages4
JournalNature
Volume392
Issue number6672
DOIs
Publication statusPublished - Mar 12 1998
Externally publishedYes

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Fermi surfaces
destruction
momentum
high temperature superconductors
temperature
elementary excitations
metals
photoelectric emission
arcs
transition temperature
cooling
temperature dependence
anisotropy
ground state
electronics
spectroscopy
excitation

ASJC Scopus subject areas

  • General

Cite this

Norman, M. R., Ding, H., Randeria, M., Campuzano, J. C., Yokoya, T., Takeuchi, T., ... Hinks, D. G. (1998). Destruction of the Fermi surface in underdoped high-T(c) superconductors. Nature, 392(6672), 157-160. https://doi.org/10.1038/32366

Destruction of the Fermi surface in underdoped high-T(c) superconductors. / Norman, M. R.; Ding, H.; Randeria, M.; Campuzano, J. C.; Yokoya, Takayoshi; Takeuchi, T.; Takahashi, T.; Mochiku, T.; Kadowaki, K.; Guptasarma, P.; Hinks, D. G.

In: Nature, Vol. 392, No. 6672, 12.03.1998, p. 157-160.

Research output: Contribution to journalArticle

Norman, MR, Ding, H, Randeria, M, Campuzano, JC, Yokoya, T, Takeuchi, T, Takahashi, T, Mochiku, T, Kadowaki, K, Guptasarma, P & Hinks, DG 1998, 'Destruction of the Fermi surface in underdoped high-T(c) superconductors', Nature, vol. 392, no. 6672, pp. 157-160. https://doi.org/10.1038/32366
Norman MR, Ding H, Randeria M, Campuzano JC, Yokoya T, Takeuchi T et al. Destruction of the Fermi surface in underdoped high-T(c) superconductors. Nature. 1998 Mar 12;392(6672):157-160. https://doi.org/10.1038/32366
Norman, M. R. ; Ding, H. ; Randeria, M. ; Campuzano, J. C. ; Yokoya, Takayoshi ; Takeuchi, T. ; Takahashi, T. ; Mochiku, T. ; Kadowaki, K. ; Guptasarma, P. ; Hinks, D. G. / Destruction of the Fermi surface in underdoped high-T(c) superconductors. In: Nature. 1998 ; Vol. 392, No. 6672. pp. 157-160.
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