Superfluid and normal fluid density in high-Tc superconductors
| Autor: | R. J. Kelley, M. A. Quijada, John T. Markert, D. M. Ginsberg, David B. Tanner, David C. Johnston, Fangcheng Chou, A. Zibold, J. P. Rice, Helmuth Berger, Marshall Onellion, Hsiang Lin Liu |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Superconductivity
Physics Superconducting coherence length Range (particle radiation) High-temperature superconductivity Flux pumping Condensed matter physics Doping Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Superfluidity law Condensed Matter::Superconductivity Condensed Matter::Strongly Correlated Electrons Cuprate Electrical and Electronic Engineering |
| Zdroj: | Physica B: Condensed Matter. 244:1-8 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/s0921-4526(97)00453-5 |
| Popis: | The electronic properties of the cuprate superconductors have been studied by measuring the reflectance over the frequency range from the far-infrared to the near-ultraviolet(roughly, 10 meV-5 eV). There is an interesting behavior in both the normal state and the superconducting state. In the normal state, there is the well-known non-Drude distribution of the doping-induced spectral weight. In the superconducting state, the spectral weight of the superconducting condensate correlates with Tc in a variety of materials. Remarkably, in optimally doped superconductors, only about 20% of the doping-induced carriers joins the superfluid; the rest of the spectral weight remains at finite frequencies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect