Ab initio simulation of laser-induced transformations in fullerite

被引：4

作者：

Gambirasio, A

Bernasconi, M

Benedek, C

Silvestrelli, PL

机构：

[1] Univ Milan, Ist Nazl Fis Mat, I-20125 Milan, Italy

[2] Univ Milan, Dipartimento Sci Mat, I-20125 Milan, Italy

[3] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[4] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy

[5] Univ Padua, Ist Nazl Fis Mat, I-35131 Padua, Italy

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.62.12644

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We studied by ab initio molecular dynamics the modifications induced on fullerite by irradiation with ultrashort, very intense laser pulses. We identified the threshold for the nonthermal cage opening of the C-60 molecules that is the analog of the laser-induced nonthermal melting observed in semiconductors and graphite. The new phase formed by the nonthermal coalescence of the C-60 molecules is fluidlike and mainly formed by small chains of twofold-coordinated atoms. An estimate of the threshold laser fluence for the nonthermal transformation is given.

引用

页码：12644 / 12647

页数：4

共 36 条

[1] PHENOMENOLOGICAL MODEL FOR PISOSECOND-PULSE LASER ANNEALING OF SEMICONDUCTORS [J].