The possibility of using phase transition in Ni and Cu nanoclusters for information recording processes

International Scientific Conference on "Radiation-Thermal Effects and Processes in Inorganic Materials"

材料科学;物理学

Gafner, Yu.Ya.^1 ; Gafner, S.L.^1

Katanov State University of Khakassia, Abakan, pr. Lenina 90, 655000, Russia^1

关键词: Crystallization process;    Cu nanoclusters;    Information recording;    Internal structure;    Metal nanoclusters;    Molecular dynamics methods;    Nickel nanoparticles;    Stability boundaries;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/81/1/012030/pdf
DOI  :  10.1088/1757-899X/81/1/012030

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The opportunity of transition metals nanoclusters' usage as a data bits in memory devices for the recording transition "order-disorder" has been analyzed. Therefore, with the help of the molecular dynamics method on the basis of TB-SMA potential the simulation of metal nanoparticles (D = 1.6 - 5.0 nm) crystallization processes have been studied. Influence of various conditions of crystallization on formation of internal structure in metal nanoclusters is investigated. The stability boundaries of various crystalline isomers are analyzed. The obtained dependences are compared with the corresponding data obtained for copper and nickel nanoparticles having similar sizes. The limiting size of nanoparticles is determined, for which a structural "order-disorder" transition necessary for the data recording is still possible.