$c$-axis coupling in underdoped Bi2Sr2CaCu2O8 with varying degrees of disorder
In: ISSN: 1098-0121 ; EISSN: 1550-235X, 2008
Online
academicJournal
Zugriff:
10 pages , 9 Figures ; International audience ; The dependence of the Josephson Plasma Resonance (JPR) frequency in heavily underdoped Bi2Sr2CaCu2O8+\delta on temperature and controlled pointlike disorder, introduced by high-energy electron irradiation, is cross-correlated and compared to the behavior of the ab-plane penetration depth. It is found that the zero temperature plasma frequency, representative of the superfluid component of the c-axis spectral weight, decreases proportionally with T_c when the disorder is increased. The temperature dependence of the JPR frequency is the same for all disorder levels, including pristine crystals. The reduction of the c-axis superfluid density as function of disorder is accounted for by pair-breaking induced by impurity scattering in the CuO2 planes, rather than by quantum fluctuations of the superconducting phase. The reduction of the c-axis superfluid density as function of temperature follows a T^{2}--law and is accounted for by quasi-particle hopping through impurity induced interlayer states.
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$c$-axis coupling in underdoped Bi2Sr2CaCu2O8 with varying degrees of disorder
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Autor/in / Beteiligte Person: | Spathis, Panayotis ; Colson, Sylvain ; Yang, Feng ; Van Der Beek, Cornelis Jacominus ; Gierlowski, Piotr ; Shibauchi, Takasada ; Matsuda, Yuji ; Gaifullin, Marat ; Li, Ming ; Kes, Peter H. ; Laboratoire des Solides Irradiés (LSI) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS) ; Instytut Fisyki (IFPAN) ; Polskiej Akademie Nauk ; Department of Physics, Kyoto University ; Kyoto University Kyoto ; Division of New Material Science, Institute for Solid State Physics (ISSP) ; Institute for Solid State Physics Tokyo (ISSP) ; The University of Tokyo (UTokyo)-The University of Tokyo (UTokyo) ; National Institute for Materials Science (NIMS) ; Kamerlingh Onnes Laboratorium (KOL) ; Leiden, LION-Rijksuniversiteit ; Programme bilateral Franco-Japonais SAKURA No. 12313UL ; Polish MNiSW Grant No N202 058 32/1202 |
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Zeitschrift: | ISSN: 1098-0121 ; EISSN: 1550-235X, 2008 |
Veröffentlichung: | HAL CCSD ; American Physical Society, 2008 |
Medientyp: | academicJournal |
DOI: | 10.1103/PhysRevB.77.104503 |
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