Imaging the effects of individual zinc impurity atoms on superconductivity in Bi2Sr2CaCu2O8+delta
Article Abstract:
It has been possible to use scanning tunnelling microscopy (STM) to investigate local effects due to impurity atoms of known identity and crystal location in a high-Tc superconductor. This research has focused on Zn impurity atoms in the high-temperature superconductor Bi2Sr2CaCu2O8+delta because these atoms create strongly altered bulk superconducting properties and highly unusual spectroscopic effects. A home-built, low-temperature STM with a number of unique features particularly suitable for investigating high-temperature superconductors was used. A number of unexpected phenomena were observed, including the extended 'quasiparticle beams' oriented with the gap maxima.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
User Contributions:
Comment about this article or add new information about this topic:
Interplay of magnetism and high-Tc superconductivity at individual Ni impurity atoms in Bi2Sr2CaCu2O8+delta
Article Abstract:
Research into the influence of individual Ni atoms on the local electronic structure of Bi2Sr2CaCu2O8+delta is presented. It was established that, despite their magnetic moments, scattering at Ni atoms is dominated by potential interactions. The magnetic Ni atoms coexist with unweakened superconductivity.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
User Contributions:
Comment about this article or add new information about this topic:
Microscopic electronic inhomogeneity in the high-Tc superconductor Bi2Sr2CaCu2O8+x
Article Abstract:
Research is presented concerning the use of spectroscopy and scanning tunnelling microscopy to investigate the existence of an electronic inhomogeneity in the superconducting compound Bi2Sr2CaCu2O8+x.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Interplay of electron-lattice interactions and superconductivity in Bi2Sr2CaCu2[O.sub.8Delta]. From obscurity to impurity
- Abstracts: Conservation and elaboration of Hox gene regulation during evolution of the vertebrate head. Raising the roof
- Abstracts: CpG methylation is maintained in human cancer cells lacking DNMT1. Conversion of diploidy to haploidy
- Abstracts: Origin of the Moon's orbital inclination from resonant disk interactions. A common mass scaling for satellite systems of gaseous planets