Photoinduced crystallization of amorphous ice films on graphite

被引：65
作者：
Chakarov, D [1 ]
Kasemo, B
机构：
[1] Chalmers Univ Technol, Dept Appl Phys, S-41296 Gothenburg, Sweden
[2] Univ Gothenburg, S-41296 Gothenburg, Sweden
来源：
PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 23期
关键词：
D O I：
10.1103/PhysRevLett.81.5181
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have experimentally discovered a new nonthermal mechanism by which submonolayer and multilayer amorphous ice films, deposited at T < 100 K, crystallize due to UV radiation; the proposed mechanism is that photoexcited charge carriers in the graphite substrate tunnel into defect states in the amorphous film, and induce exothermic relaxation from the metastable amorphous to the stable crystalline phase. [S0031-9007(98)07899-5].
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页码：5181 / 5184
页数：4
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