科研之友
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摘要
We investigate the low energy behavior of local density of states in metallic C-60 polymers theoretically. The multichannel bosonization method is applied to electronic band structures evaluated from first-principles calculation, by which the effects of electronic correlation and nanoscale corrugation in the atomic configuration are fully taken into account. We obtain a closed-form expression for the power-law anomalies in the local density of states, which successfully describes the experimental observation on the C-60 polymers in a quantitative manner. An important implication from the closed- form solution is the existence of an experimentally unobserved crossover at nearly a hundred milli-electron volts, beyond which the power-law exponent of the C-60 polymers should change significantly.
- 出版日期2016-4-25
- 单位RIKEN
