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Murakami H, Ohtsu Y, Ichikawa K, Sano M, Jin C, Yonehara Y, Ichimura K. Positron annihilation in hydrogen-doped alkali-metal fullerides. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2001.89.1.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Hydrogen-doped alkali-metal fullerides were studied by means of mass-analyzed thermal desorption and positron annihilation. The hydrogen desorption spectra reveal the inclusion of hydrogen in the fullerides as two types of components; one weakly adsorbed and the other strongly bound, probably as hydride ion. The positron lifetime spectra demonstrate that hydrogen-doping to alkali-metal fullerides increases a concentration of higher-order vacancy-type defects, through which more than 50% injected positrons decay with a lifetime of 0.42–0.71 ns.
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Intercalation behavior of n-alkylamines into an A-site defective layered perovskite H2W2O7. J SOLID STATE CHEM 2007. [DOI: 10.1016/j.jssc.2007.01.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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