The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
How Cooper pairs vanish approaching the Mott insulator in Bi2Sr2CaCu2O8+δ
Open accessAbstract
The antiferromagnetic ground state of copper oxide Mott insulators is achieved by localizing an electron at each copper atom in real space (r-space). Removing a small fraction of these electrons (hole doping) transforms this system into a superconducting fluid of delocalized Cooper pairs in momentum space (k-space). During this transformation, two distinctive classes of electronic excitations appear. At high energies, the mysterious ‘pseudogap’ excitations are found, whereas, at lower energies, Bogoliubov quasi-particles—the excitations resulting from the breaking of Cooper pairs—should exist. To explore this transformation, and to identify the two excitation types, we have imaged the electronic structure of Bi2Sr2CaCu2O8+δ in r-space and k-space simultaneously. We find that although the low-energy excitations are indeed Bogoliubov quasi-particles, they occupy only a restricted region of k-space that shrinks rapidly with diminishing hole density. Concomitantly, spectral weight is transferred to higher energy r-space states that lack the characteristics of excitations from delocalized Cooper pairs. Instead, these states break translational and rotational symmetries locally at the atomic scale in an energy-independent way. We demonstrate that these unusual r-space excitations are, in fact, the pseudogap states. Thus, as the Mott insulating state is approached by decreasing the hole density, the delocalized Cooper pairs vanish from k-space, to be replaced by locally translational- and rotational-symmetry-breaking pseudogap states in r-space.
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Cites
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Self-citationAn Intrinsic Bond-Centered Electronic Glass with Unidirectional Domains in Underdoped Cuprates
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Evolution of the pseudogap from Fermi arcs to the nodal liquid
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Cited by
Colloquium : Theory of intertwined orders in high temperature superconductors
Fradkin, E., Kivelson, S. A., & Tranquada, J. M. (2015) · Reviews of Modern Physics · doi:10.1103/revmodphys.87.457 · Cited by 1,070
Simultaneous Transitions in Cuprate Momentum-Space Topology and Electronic Symmetry Breaking
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Self-citationCuprate superconductors as viewed through a striped lens
Tranquada, J. M. (2020) · Advances in Physics · doi:10.1080/00018732.2021.1935698 · Cited by 84
Metadata
- Authors
- Kohsaka, Y., Taylor, C., Wahl, P., Schmidt, A., Lee, J., Fujita, K., Alldredge, J. W., McElroy, K., Lee, J., Eisaki, H., Uchida, S., Lee, D.-H., & Davis, J. C.
- Venue
- Nature
- Published
- 2008-08
- Volume
- 454
- Issue
- 7208
- Pages
- 1072-1078
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2033019168
- Cited by
- 340
- References
- 23
- FWCI
- 34.71
- Type
- journal article
- Language
- en
- Open access
- green
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