Related Content
Search Google Scholar for:
More Information
Related Jobs from ScienceCareers
|
|
Science 19 July 1996:
Vol. 273. no. 5273, pp. 325 - 329
DOI: 10.1126/science.273.5273.325
|
|
Research Articles
Excitation Gap in the Normal State of Underdoped
Bi2Sr2CaCu2O8+
A. G. Loeser,
Z.-X. Shen,
D. S. Dessau,
*
D. S. Marshall,
C. H. Park,
P. Fournier,
A. Kapitulnik
Angle-resolved photoemission experiments reveal evidence of an
energy gap in the normal state excitation spectrum of the cuprate
superconductor
Bi2Sr2CaCu2O8+ .
This gap exists only in underdoped samples and closes around the doping
level at which the superconducting transition temperature
Tc is a maximum. The momentum dependence and
magnitude of the gap closely resemble those of the
dx2 y2
gap observed in the superconducting state. This observation is
consistent with results from several other experimental techniques,
which also indicate the presence of a gap in the normal state. Some
possible theoretical explanations for this effect are reviewed.
A. G. Loeser, Z.-X. Shen, and C. H. Park are in the Department of
Applied Physics, Stanford Synchrotron Radiation Laboratory, and Solid
State Laboratory, Stanford University, Stanford, CA 94305, USA. D. S. Dessau is with the Stanford Synchrotron Radiation Laboratory, Stanford
University, Stanford, CA 94305, USA. D. S. Marshall is with the Solid
State Laboratory, Stanford University, Stanford, CA 94305-4055, USA.
P. Fournier and A. Kapitulnik are in the Department of Applied Physics,
Stanford University, Stanford, CA 94305, USA.
*
Present address: Department of Physics, University of Colorado,
Boulder, CO 80309-0390, USA.
Present address: Department of Physics, University of
Maryland, College Park, MD 20742, USA.
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
- Distinct Fermi-Momentum-Dependent Energy Gaps in Deeply Underdoped Bi2212.
- K. Tanaka, W. S. Lee, D. H. Lu, A. Fujimori, T. Fujii, Risdiana, I. Terasaki, D. J. Scalapino, T. P. Devereaux, Z. Hussain, et al. (2006)
Science
314, 1910-1913
| Abstract »
| Full Text »
| PDF »
- Determining the underlying Fermi surface of strongly correlated superconductors.
- C. Gros, B. Edegger, V. N. Muthukumar, and P. W. Anderson (2006)
PNAS
103, 14298-14301
| Abstract »
| Full Text »
| PDF »
- One-Dimensional Electronic Structure and Suppression of d-Wave Node State in (La1.28Nd0.6Sr0.12)CuO4.
- X. J. Zhou, P. Bogdanov, S. A. Kellar, T. Noda, H. Eisaki, S. Uchida, Z. Hussain, and Z. Shen (1999)
Science
286, 268-272
| Abstract »
| Full Text »
- Evidence for Quantum Critical Behavior in the Optimally Doped Cuprate Bi2Sr2CaCu2O8+.
- T. Valla, A. V. Fedorov, P. D. Johnson, B. O. Wells, S. L. Hulbert, Q. Li, G. D. Gu, and N. Koshizuka (1999)
Science
285, 2110-2113
| Abstract »
| Full Text »
- Superconductivity and the c Axis Spectral Weight of High-Tc Superconductors.
- L. B. Ioffe and A. J. Millis (1999)
Science
285, 1241-1244
| Abstract »
| Full Text »
- Pseudogaps and Extrinsic Losses in Photoemission Experiments on Poorly Conducting Solids.
- R. Joynt (1999)
Science
284, 777-779
| Abstract »
| Full Text »
- Photoemission Evidence for a Remnant Fermi Surface and a d-Wave-Like Dispersion in Insulating Ca2CuO2Cl2.
- F. Ronning, C. Kim, D. L. Feng, D. S. Marshall, A. G. Loeser, L. L. Miller, J. N. Eckstein, I. Bozovic, and Z. Shen (1998)
Science
282, 2067-2072
| Abstract »
| Full Text »
- Temperature-Induced Momentum-Dependent Spectral Weight Transfer in Bi2Sr2CaCu2O8+.
- Z. Shen, P. J. White, D. L. Feng, C. Kim, G. D. Gu, H. Ikeda, R. Yoshizaki, and N. Koshizuka (1998)
Science
280, 259-262
| Abstract »
| Full Text »
- Evolution of Magnetic and Superconducting Fluctuations with Doping of High-Tc Superconductors.
- G. Blumberg, M. Kang, M. V. Klein, K. Kadowaki, and C. Kendziora (1997)
Science
278, 1427-1432
| Abstract »
| Full Text »
- A Unified Theory Based on SO(5) Symmetry of Superconductivity and Antiferromagnetism.
- S.-C. Zhang (1997)
Science
275, 1089-1096
| Abstract »
| Full Text »
|
|
