Photofragmentation of C60 molecules following resonance excitation and ionization near the C 1s edge.
Photofragmentation of C60 molecules following resonance excitation and ionization near the C 1s edge.
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C 1s 边缘附近共振激发和电离后 C60 分子的光断裂。
DOI：
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发表时间：
1995
影响因子：
8.6
通讯作者：
Sorensen
中科院分区：
文献类型：
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作者：
Aksela;Nõmmiste;Jauhiainen;Kukk;Karvonen;Berry;Sorensen
发现C{亚60}分子在选择性共振激发和C{ital s}电子电离后的破碎谱有显著差异。在{pi}{sup *}边缘共振处，多电荷离子表现出强烈的碎片化。在1{ital s}阈值以上，C{sub 60}{sup +}离子产额表明，缓慢的光电子可以被重新捕获。母体C{sub 60}{sup +}离子的相对碎裂在光电子动能最大约20 eV的阈值以上强烈增加；这可能是由于巨大等离子体共振的激发。
Fragmentation spectra of C{sub 60} molecules after selective resonant excitation and ionization of C 1{ital s} electrons have been found to differ remarkably. At the {pi}{sup *} preedge resonances the multiply charged ions show strong fragmentation. Above the 1{ital s} threshold the C{sub 60}{sup +} ion yield indicates that the slow photoelectrons can get recaptured. Relative fragmentation of the parent C{sub 60}{sup +} ions has been found to increase strongly above the threshold towards a maximum of about 20 eV kinetic energy of the photoelectron; this may be due to the excitation of the giant plasmon resonance.