Positron Annihilation in Alkali Metal-Doped Multiwall Carbon Nanotubes
スポンサーリンク
概要
- 論文の詳細を見る
Positron lifetime spectra for multiwall carbon nanotubes doped with the alkali metals, K, Rb and Cs, are found to consist of a single component with a lifetime of 0.36ns at 280K, independent of the alkali metal. The shorter lifetime than in pristine carbon nanotubes (0.382ns) demonstrates positron annihilation at a site of higher electron density. We conclude that all positrons injected into alkali metal-doped carbon nanotubes annihilate at positron-trapping centers, derived probably from extended lattice defects located on their negatively-charged graphitic shells.
- 社団法人日本物理学会の論文
- 2002-01-15
著者
-
Sano Mizuka
Department Of Materials Science The University Of Electro-communications
-
Sano Mizuka
Department Of Chemistry Division Of Natural Sciences International Christian University
-
MURAKAMI Hideoki
Department of Physics, Faculty of Education, Tokyo Gakugei University
-
Murakami Hideoki
Department Of Physics Faculty Of Education Tokyo Gakugei University
-
Murakami Hideoki
Department Of Metallurg And Marial Science Faculty Of Engineering University Of Tokyo
-
Murakami Hideoki
Department of Astronomy and Earth Sciences, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan
関連論文
- Positronium Formation in Alkali Metal-intercalated Cup-stacked Carbon Nanofibers(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Superconductivity in the First Stage Rubidium Graphite Intercalation Compound C_8Rb
- THE GRAPHITE INTERCALATION COMPOUNDS I : THE CONDUCTIVITY OF GRAPHITE-ALKALIMETAL-HYDROGEN TERNARY SYSTEMS(Superconductivity・Intercalation)
- Positron Annihilation in Alkali Metal-Doped Multiwall Carbon Nanotubes
- Second Order Electrical Resistivity Decay Quenched Aluminum
- Atomic-Scale Structural Evolution upon Crystallite Nucleation and Growth in Amorphous Fe78B13Si9
- Mechanism of Bi Precipitation in Sn65.4Bi34.6 Eutectic System
- Annihilation of Faulted Dislocation Loops in Quenched Aluminum
- Defects in Quenched and Annealed AN-Ge Alloys
- Positronium Formation in Alkali Metal-intercalated Cup-stacked Carbon Nanofibers(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Magnetic and Optical Properties of Ionic Electron-Donor-Acceptor Complexes