Low-Lying Quasiparticle States and Hidden Collective Charge Instabilities in Parent Cobaltate Superconductors
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We report a state-of-the-art photoemission (angle-resolved photoemission spectroscopy) study of high quality single crystals of NaxCoO2 the series focusing on the fine details of the low-energy states. The Fermi velocity is found to be small (<0.5 eV A) and only weakly anisotropic over the Fermi surface at all dopings, setting the size of the pair wave function to be on the order of 10-20 nm. In the low-doping regime, the exchange interlayer splitting vanishes and two-dimensional collective instabilities such as 120 degrees -type fluctuations become kinematically allowed. Our results suggest that the unusually small Fermi velocity and the unique symmetry of kinematic instabilities distinguish cobaltates from most other oxide superconductors.
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This coherence length is about 1-2 orders of magnitude greater than that in cuprates or cobaltates.
“This value is about 1-2 orders of magnitude greater than that seen in the cuprates (ξ 0 ∼ 100-200 Å) or cobaltates (ξ 0 ∼ 200 Å; refs 26,27).”
From Observation of topological order in a superconducting doped topological insulator (2010) · cites this paper as [27]
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Cites
Angle-resolved photoemission studies of the cuprate superconductors
Damascelli, A., Hussain, Z., & Shen, Z.-X. (2003) · Reviews of Modern Physics · doi:10.1103/revmodphys.75.473 · Cited by 3,775 · see citing works
Large thermoelectric power in NaCo 2 O 4 single crystals
Terasaki, I., Sasago, Y., & Uchinokura, K. (1997) · Physical review. B, Condensed matter · doi:10.1103/physrevb.56.r12685 · Cited by 2,783 · see citing works
Importance of phase fluctuations in superconductors with small superfluid density
Emery, V. J., & Kivelson, S. A. (1995) · Nature · doi:10.1038/374434a0 · Cited by 2,099 · see citing works
Superconductivity in two-dimensional CoO2 layers
Takada, K., Sakurai, H., Takayama‐Muromachi, E., Izumi, F., Dilanian, R. A., & Sasaki, T. (2003) · Nature · doi:10.1038/nature01450 · Cited by 1,816 · see citing works
Charge Ordering, Commensurability, and Metallicity in the Phase Diagram of the Layered NaxCoO2
Foo, M. L., Wang, Y., Watauchi, S., et al. (2004) · Physical Review Letters · doi:10.1103/physrevlett.92.247001 · Cited by 612 · see citing works
Electronic structure of NaCo2O4
Singh, D. J. (2000) · Physical review. B, Condensed matter · doi:10.1103/physrevb.61.13397 · Cited by 542 · see citing works
Bilayer Splitting in the Electronic Structure of Heavily Overdoped Bi2Sr2CaCu2O8+δ
Feng, D. L., Armitage, N. P., Lu, D.-H., et al. (2001) · Physical Review Letters · doi:10.1103/physrevlett.86.5550 · Cited by 240 · see citing works
Hasan, M. Z., Chuang, Y., Qian, D., Li, Y., Kong, Y., Kuprin, A. P., Fedorov, A. V., Kimmerling, R., Rotenberg, E., Roßnagel, K., et al. (2004) · Physical Review Letters · doi:10.1103/physrevlett.92.246402 · Cited by 223 · see citing works
Self-citationHuang, Q., Foo, M. L., Pascal, R. A., et al. (2004) · Physical Review B · doi:10.1103/physrevb.70.184110 · Cited by 187 · see citing works
Magnetic Ordering and Spin Waves in Na0.82CoO2
Bayrakci, S. P., Mirebeau, I., Bourges, P., et al. (2005) · Physical Review Letters · doi:10.1103/physrevlett.94.157205 · Cited by 157 · see citing works
Fermi Surface Evolution and Luttinger Theorem in NaxCoO2 : A Systematic Photoemission Study
Yang, H., Pan, Z.-H., Sekharan, A. K. P., et al. (2005) · Physical Review Letters · doi:10.1103/physrevlett.95.146401 · Cited by 151 · see citing works
Doubling of the Bands in Overdoped Bi 2 Sr 2 CaCu 2 O 8 + δ : Evidence for c -Axis Bilayer Coupling
Chuang, Y., Gromko, A. D., Fedorov, A. V., et al. (2001) · Physical Review Letters · doi:10.1103/physrevlett.87.117002 · Cited by 145 · see citing works
Self-citationElectronic Structure of MgB2 from Angle-Resolved Photoemission Spectroscopy
Uchiyama, H., Shen, K., Lee, S., Damascelli, A., Lu, D.-H., Feng, D. L., Shen, Z., & Tajima, S. (2002) · Physical Review Letters · doi:10.1103/physrevlett.88.157002 · Cited by 124 · see citing works
Momentum anisotropy of the scattering rate in cuprate superconductors
Kaminski, A., Fretwell, H. M., Norman, M. R., et al. (2005) · Physical Review B · doi:10.1103/physrevb.71.014517 · Cited by 101 · see citing works
Electronic energy bands of lead: Angle-resolved photoemission and band-structure calculations
Horn, K., Reihl, B., Zartner, A., et al. (1984) · Physical review. B, Condensed matter · doi:10.1103/physrevb.30.1711 · Cited by 67 · see citing works
Electronic Frustration on a Triangular Lattice
Ong, N. P., & Cava, R. J. (2004) · Science · doi:10.1126/science.1099387 · Cited by 63 · see citing works
Self-citationNonmagnetic Insulator State in Na1CoO2 and Phase Separation of Na Vacancies
de Vaulx, C., Julien, M.-H., Berthier, C., et al. (2005) · Physical Review Letters · doi:10.1103/physrevlett.95.186405 · Cited by 50 · see citing works
Study of the triangular lattice tV model near x=13
Motrunich, O. I., & Lee, P. A. (2004) · Physical Review B · doi:10.1103/physrevb.70.024514 · Cited by 50 · see citing works
Muon Spin Relaxation Measurements of NaxCoO2·yH2O
Kanigel, A., Keren, A., Patlagan, L., et al. (2004) · Physical Review Letters · doi:10.1103/physrevlett.92.257007 · Cited by 43 · see citing works
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Research works printed but not linked: 3
- [4]M.Z. Hasan et al. , Phys. Rev. Lett. 92 , 246402 (2004); cond-mat/0501530 (2005). · arXiv
- [15]Y. Tanaka et al. , cond-mat/0311266 (2003). · arXiv
- [17]E.W. Carlson et al. , 'The Physics of Conventional and Unconventional Superconductors,' ed. K.H. Bennemann and J.B. Ketterson (Springer-Verlag, 2002).
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Observation of topological order in a superconducting doped topological insulator
Wray, L. A., Xu, S.-Y., Xia, Y., Hor, Y. S., Qian, D., Fedorov, A. V., Lin, H., Bansil, A., Cava, R. J., & Hasan, M. Z. (2010) · Nature Physics · doi:10.1038/nphys1762 · Cited by 464 · see citing works
Self-citation
- Authors
- Qian, D., Hsieh, D., Wray, L., Chuang, Y.-D., Fedorov, A., Wu, D., Luo, J. L., Wang, N. L., Viciu, L., Cava, R. J., & Hasan, M. Z.
- Affiliations
- Princeton University (US)
- Lawrence Berkeley National Laboratory (US)
- Chinese Academy of Sciences (CN)
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2006-06-01
- Volume
- 96
- Issue
- 21
- Pages
- 216405-216405
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1993591725
- Cited by
- 75
- References
- 19
- Citations by year
- 2024: 1 · 2022: 1 · 2020: 1 · 2018: 1 · 2017: 3 · 2016: 2 · 2015: 3 · 2014: 2 · 2013: 1 · 2012: 3
- FWCI
- 11.22
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- CaltechAUTHORS (California Institute of Technology) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Physics of Superconductivity and Magnetism
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Magnetic and transport properties of perovskites and related materials
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Iron-based superconductors research
- Keywords
- NaxCoO2, quasiparticle states, Fermi velocity, Fermi surface anisotropy, photoemission spectroscopy
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