Coexistence of competing orders with two energy gaps in real and momentum space in the high temperature superconductor Bi2Sr2-xLaxCuO6+δ

J. H. Ma; Z. H. Pan; F. C. Niestemski; M. Neupane; Y. M. Xu; P. Richard; K. Nakayama; T. Sato; T. Takahashi; H. Q. Luo; L. Fang; H. H. Wen; Ziqiang Wang; H. Ding; V. Madhavan

doi:10.1103/PhysRevLett.101.207002

Coexistence of competing orders with two energy gaps in real and momentum space in the high temperature superconductor Bi2Sr2-xLaxCuO6+δ

J. H. Ma, Z. H. Pan, F. C. Niestemski, M. Neupane, Y. M. Xu, P. Richard, K. Nakayama, T. Sato, T. Takahashi, H. Q. Luo, L. Fang, H. H. Wen, Ziqiang Wang, H. Ding, V. Madhavan

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Abstract

Through a combined scanning tunneling microscopy and angle-resolved photoemission spectroscopy study, we report the observation of two distinct gaps (a small and a large gap) that coexist both in real space and in the antinodal region of momentum space, below the superconducting transition temperature (Tc) of Bi2Sr2-xLaxCuO6+δ. We show that the small gap is associated with superconductivity. The large-gap persists above Tc, and seems linked to observed charge ordering. We find a strong correlation between the large and small gaps suggesting that they are affected by similar physical processes.

Original language	English (US)
Article number	207002
Journal	Physical review letters
Volume	101
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.101.207002
State	Published - Nov 13 2008
Externally published	Yes

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General Physics and Astronomy

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10.1103/PhysRevLett.101.207002

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Ma, J. H., Pan, Z. H., Niestemski, F. C., Neupane, M., Xu, Y. M., Richard, P., Nakayama, K., Sato, T., Takahashi, T., Luo, H. Q., Fang, L., Wen, H. H., Wang, Z., Ding, H., & Madhavan, V. (2008). Coexistence of competing orders with two energy gaps in real and momentum space in the high temperature superconductor Bi2Sr2-xLaxCuO6+δ. Physical review letters, 101(20), Article 207002. https://doi.org/10.1103/PhysRevLett.101.207002

Ma, JH, Pan, ZH, Niestemski, FC, Neupane, M, Xu, YM, Richard, P, Nakayama, K, Sato, T, Takahashi, T, Luo, HQ, Fang, L, Wen, HH, Wang, Z, Ding, H & Madhavan, V 2008, 'Coexistence of competing orders with two energy gaps in real and momentum space in the high temperature superconductor Bi2Sr2-xLaxCuO6+δ', Physical review letters, vol. 101, no. 20, 207002. https://doi.org/10.1103/PhysRevLett.101.207002

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abstract = "Through a combined scanning tunneling microscopy and angle-resolved photoemission spectroscopy study, we report the observation of two distinct gaps (a small and a large gap) that coexist both in real space and in the antinodal region of momentum space, below the superconducting transition temperature (Tc) of Bi2Sr2-xLaxCuO6+δ. We show that the small gap is associated with superconductivity. The large-gap persists above Tc, and seems linked to observed charge ordering. We find a strong correlation between the large and small gaps suggesting that they are affected by similar physical processes.",

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AU - Ma, J. H.

AU - Pan, Z. H.

AU - Niestemski, F. C.

AU - Neupane, M.

AU - Xu, Y. M.

AU - Richard, P.

AU - Nakayama, K.

AU - Sato, T.

AU - Takahashi, T.

AU - Luo, H. Q.

AU - Fang, L.

AU - Wen, H. H.

AU - Wang, Ziqiang

AU - Ding, H.

AU - Madhavan, V.

PY - 2008/11/13

Y1 - 2008/11/13

N2 - Through a combined scanning tunneling microscopy and angle-resolved photoemission spectroscopy study, we report the observation of two distinct gaps (a small and a large gap) that coexist both in real space and in the antinodal region of momentum space, below the superconducting transition temperature (Tc) of Bi2Sr2-xLaxCuO6+δ. We show that the small gap is associated with superconductivity. The large-gap persists above Tc, and seems linked to observed charge ordering. We find a strong correlation between the large and small gaps suggesting that they are affected by similar physical processes.

AB - Through a combined scanning tunneling microscopy and angle-resolved photoemission spectroscopy study, we report the observation of two distinct gaps (a small and a large gap) that coexist both in real space and in the antinodal region of momentum space, below the superconducting transition temperature (Tc) of Bi2Sr2-xLaxCuO6+δ. We show that the small gap is associated with superconductivity. The large-gap persists above Tc, and seems linked to observed charge ordering. We find a strong correlation between the large and small gaps suggesting that they are affected by similar physical processes.

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Coexistence of competing orders with two energy gaps in real and momentum space in the high temperature superconductor Bi2Sr2-xLaxCuO6+δ

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