dc.contributor.author | Ding, H. | en |
dc.contributor.author | Yokoya, T. | en |
dc.contributor.author | Campuzano, Juan C. | en |
dc.contributor.author | Takahashi, T. | en |
dc.contributor.author | Randeria, M. | en |
dc.contributor.author | Norman, M. R. | en |
dc.contributor.author | Mochiku, T. | en |
dc.contributor.author | Kadowaki, K. | en |
dc.contributor.author | Giapintzakis, John | en |
dc.creator | Ding, H. | en |
dc.creator | Yokoya, T. | en |
dc.creator | Campuzano, Juan C. | en |
dc.creator | Takahashi, T. | en |
dc.creator | Randeria, M. | en |
dc.creator | Norman, M. R. | en |
dc.creator | Mochiku, T. | en |
dc.creator | Kadowaki, K. | en |
dc.creator | Giapintzakis, John | en |
dc.date.accessioned | 2019-05-06T12:23:32Z | |
dc.date.available | 2019-05-06T12:23:32Z | |
dc.date.issued | 1996 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/48316 | |
dc.description.abstract | It is well known that BCS mean-field theory is remarkably successful in describing conventional superconductors. A central concept of BCS theory is the energy gap in the electronic excitation spectrum below the superconducting transition temperature, T(c). The gap also serves as the order parameter: quite generally, long-range phase coherence and a non-zero gap go hand-in-hand. But in underdoped high-T(c) superconductors there is considerable evidence that a pseudogap (a suppression of spectral weight) is already formed in the normal state above T(c)-first, from studies of the spin excitation spectrum, which measure a 'spin gap', and later from a variety of other probes. Here we present a study of underdoped Bi2Sr2CaCu2O(8+δ) (Bi2212) using angle-resolved photoemission spectroscopy (ARPES), which directly measures the momentum-resolved electron excitation spectrum of the CuO2 planes. We find that a pseudogap with d-wave symmetry opens up in the normal state below a temperature T' > T(c), and develops into the d-wave superconducting gap once phase coherence is established below T(c). | en |
dc.language.iso | eng | en |
dc.source | Nature | en |
dc.subject | article | en |
dc.subject | priority journal | en |
dc.subject | electron | en |
dc.subject | oxygen | en |
dc.subject | conductor | en |
dc.subject | copper | en |
dc.subject | flame photometry | en |
dc.subject | temperature | en |
dc.title | Spectroscopic evidence for a pseudogap in the normal state of underdoped high-T(c) superconductors | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1038/382051a0 | |
dc.description.volume | 382 | |
dc.description.startingpage | 51 | |
dc.description.endingpage | 54 | |
dc.author.faculty | Πολυτεχνική Σχολή / Faculty of Engineering | |
dc.author.department | Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering | |
dc.type.uhtype | Article | en |
dc.contributor.orcid | Giapintzakis, John [0000-0002-7277-2662] | |
dc.description.totalnumpages | 51-54 | |
dc.gnosis.orcid | 0000-0002-7277-2662 | |