Open AccessNumerical simulation of magnetizing processes of nickel nanowires and nanoballs grown in superfluid helium
Author(s) -
M. A. Golenishchev,
M. E. Stepanov,
A. V. Karabulin,
V. I. Matyushenko
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1686/1/012077
Subject(s) - nanowire , magnetometer , materials science , nickel , magnetization , laser ablation , nanoparticle , helium , squid , work (physics) , condensed matter physics , laser , nanotechnology , magnetic field , thermodynamics , physics , optics , metallurgy , atomic physics , ecology , quantum mechanics , biology
The present work is dedicated to numerical modeling of magnetization processes of Ni nanoparticles ensembles acquired by pulsed laser ablation of metallic target in He II. The characteristic feature of the systems under study is their heterogeneous composition. One fraction of particles is represented by thin nanowires (with diameters of 4 nm strictly) meanwhile the other corresponds to a ball-shaped particles that can obtain diameters from 8 to 500 nm. The model was verified by comparing its calculation results with SQUID-magnetometry data.