Critical size of iron nanoparticles on liquid substrates

doi:10.1088/1674-1056/22/11/116103

中国物理B ›› 2013, Vol. 22 ›› Issue (11): 116103-116103.doi: 10.1088/1674-1056/22/11/116103

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇下一篇

Critical size of iron nanoparticles on liquid substrates

吕能^a, 潘启发^a, 程毅^a, 杨波^a, 叶高翔^{a b}

a Department of Physics, Zhejiang University, Hangzhou 310027, China;
b Department of Physics, Hangzhou Normal University, Hangzhou 310036, China

收稿日期:2013-01-29 修回日期:2013-06-08 出版日期:2013-09-28 发布日期:2013-09-28
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11074215) and the Fundamental Research Funds for Central Universities of Ministry of Education of China (Grant No. 2012QNA3010).

Critical size of iron nanoparticles on liquid substrates

Lü Neng (吕能)^a, Pan Qi-Fa (潘启发)^a, Cheng Yi (程毅)^a, Yang Bo (杨波)^a, Ye Gao-Xiang (叶高翔)^{a b}

a Department of Physics, Zhejiang University, Hangzhou 310027, China;
b Department of Physics, Hangzhou Normal University, Hangzhou 310036, China

Received:2013-01-29 Revised:2013-06-08 Online:2013-09-28 Published:2013-09-28
Contact: Ye Gao-Xiang E-mail:gxye@mail.hz.zj.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11074215) and the Fundamental Research Funds for Central Universities of Ministry of Education of China (Grant No. 2012QNA3010).

摘要/Abstract

摘要： We study the iron atomic aggregates deposited on silicone oil surfaces by using atomic force microscopy. The aggregates are composed of disk-shaped nanoparticles with the mean diameter Φ_c≈31.7 nm and height H_c≈4.5 nm, which are nearly independent of the nominal film thickness. The experiment shows that a material condensation process must occur in the nanoparticles during the growth period. The anomalous phenomenon is explained.

关键词: critical size, nanoparticle, condensation behavior, liquid substrate

Abstract: We study the iron atomic aggregates deposited on silicone oil surfaces by using atomic force microscopy. The aggregates are composed of disk-shaped nanoparticles with the mean diameter Φ_c≈31.7 nm and height H_c≈4.5 nm, which are nearly independent of the nominal film thickness. The experiment shows that a material condensation process must occur in the nanoparticles during the growth period. The anomalous phenomenon is explained.

Key words: critical size, nanoparticle, condensation behavior, liquid substrate

中图分类号: (Structure of nanoscale materials)

61.46.-w

81.07.-b (Nanoscale materials and structures: fabrication and characterization) 68.37.Ps (Atomic force microscopy (AFM)) 68.55.J- (Morphology of films)

吕能, 潘启发, 程毅, 杨波, 叶高翔. Critical size of iron nanoparticles on liquid substrates[J]. 中国物理B, 2013, 22(11): 116103-116103.

Lü Neng (吕能), Pan Qi-Fa (潘启发), Cheng Yi (程毅), Yang Bo (杨波), Ye Gao-Xiang (叶高翔). Critical size of iron nanoparticles on liquid substrates[J]. Chin. Phys. B, 2013, 22(11): 116103-116103.

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Critical size of iron nanoparticles on liquid substrates

Critical size of iron nanoparticles on liquid substrates

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