Formation of Metallic Nanowires by Laser Ablation in Liquid Helium

被引：32

作者：

Lebedev, Victor ^{[1
]}

Moroshkin, Peter ^{[1
]}

Grobety, Bernard ^{[2
]}

Gordon, Eugene ^{[3
]}

Weis, Antoine ^{[1
]}

机构：

[1] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

[2] Univ Fribourg, Dept Geosci, CH-1700 Fribourg, Switzerland

[3] Inst Problems Chem Phys RAS, Chernogolovka 142432, Russia

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2011年 / 165卷 / 3-4期

基金：

瑞士国家科学基金会;

关键词：

Superfluid helium; Laser ablation; Nanoparticles; Nanowires; Turbulence; ATOMS; NANOPARTICLES; SPECTROSCOPY; IMPLANTATION; VORTICES;

D O I：

10.1007/s10909-011-0384-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Laser ablation of metals in liquid helium results in the formation of metal filaments with diameters on the order of 2-10 nanometres and of spherical nanoparticles. In superfluid helium these nanowires aggregate into centimeter-sized networks. We study the morphology and the electric conductivity of these large aggregates, as well as extinction spectra and the crystalline structure of the individual nanofragments. We discuss the effect of superfluidity on the mechanisms of coalescence processes at the nanometer and centimeter scales.

引用

页码：166 / 176

页数：11

共 26 条

[1] Reconnection of Superfluid Vortex Bundles [J].

Alamri, Sultan Z. ;

Youd, Anthony J. ;

Barenghi, Carlo F. .

PHYSICAL REVIEW LETTERS, 2008, 101 (21)

[2] Optical absorption spectra of nanocrystal gold molecules [J].

Alvarez, MM ;

Khoury, JT ;

Schaaff, TG ;

Shafigullin, MN ;

Vezmar, I ;

Whetten, RL .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (19) :3706-3712

[3] Effects of the mean free path and relaxation in a model for the aggregation of particles in superfluid media [J].

Alves, S. G. ;

Vilesov, A. F. ;

Ferreira, S. C., Jr. .

JOURNAL OF CHEMICAL PHYSICS, 2009, 130 (24)

[4]

[Anonymous], 1994, CRC HDB CHEM PHYS

[5]

[Anonymous], 1967, The Properties of Liquid and Solid Helium

[6] IMPLANTATION AND SPECTROSCOPY OF METAL ATOMS IN SOLID HELIUM [J].

ARNDT, M ;

DZIEWIOR, R ;

KANORSKY, S ;

WEIS, A ;

HANSCH, TW .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1995, 98 (03) :377-381

[7]

ARNDT M, 1995, 197 MPQ L MAX U MUNC

[8] Pure colloidal metal and ceramic nanoparticles from high-power picosecond laser ablation in water and acetone [J].

Baersch, Niko ;

Jakobi, Jurij ;

Weiler, Sascha ;

Barcikowski, Stephan .

NANOTECHNOLOGY, 2009, 20 (44)

[9] SPECTROSCOPY AND DYNAMICS OF TRAPPED ALKALINE-EARTH ATOMS IN SUPERFLUID-HELIUM [J].

BEIJERSBERGEN, JHM ;

QIN, H ;

TAKAMI, M .

PHYSICS LETTERS A, 1993, 181 (05) :393-403

[10] Capture of an impurity by a vortex line in a Bose condensate [J].

Berloff, NG ;

Roberts, PH .

PHYSICAL REVIEW B, 2001, 63 (02)

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