Abstract
The size dependences of the temperatures of melting \({{T}_{{\text{m}}}}\) and crystallization \({{T}_{{\text{c}}}}\) of Co nanoparticles and also those of the heat (enthalpy) of melting \(\Delta {{H}_{{\text{m}}}}\) and crystallization \(\Delta {{H}_{{\text{c}}}}\) are studied using a complex approach to atomistic simulation combining the use of the molecular dynamic and Monte Carlo methods. It is established that \({{T}_{{\text{m}}}}\) and \({{T}_{{\text{c}}}}\) decrease linearly with increasing inverse particle radius. The phase transition heats \(\Delta {{H}_{{\text{m}}}}\) and \(\Delta {{H}_{{\text{c}}}}\) also decrease during the transition from the bulk phase to nanoparticles, but it seems this effect is non-scalable.
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REFERENCES
I. González, J. C. De Jesus, C. U. de Navarro, and M. Garcia, Catal. Today 149 (3–4), 352 (2010).
N. Bhattarai, G. Casillas, S. Khanal, et al., MRS Commun. 3 (3), 177 (2013).
K. Dick, T. Dhanasekaran, Zh. Zhang, and D. Meisel, J. Am. Chem. Soc. 124 (10), 2312 (2002).
G. S. Zhdanov, Izv. Akad. Nauk SSSR, Ser. Fiz. 41 (5), 1004 (1977).
R. Kofman, P. Cheyssac, Y. Lereach, and A. Stella, Eur. Phys. J. D 9 (1), 441 (1999).
W. H. Qi and M. P. Wang, Mater. Chem. Phys. 88 (2–3), 280 (2004).
V. M. Samsonov, S. S. Kharechkin, S. L. Gafner, L. V. Redel, and Yu. Ya. Gafner, Crystallogr. Rep. 54 (3), 526 (2009).
V. M. Samsonov, S. A. Vasil’ev, I. V. Talyzin, and Yu. A. Ryzhkov, JETP Lett., 103 (2), 94 (2016).
Y. D. Qu, X. L. Liang, X. Q. Kong, and W. J. Zhang, Phys. Metals Metallogr. 118 (6), 528 (2017).
L. F. Cao, G. Y. Xu, D. Xie, M. X. Guo, L. Luo, Z. Li, M. P. Wang, Phys. Status Solidi 243 (12), 2745 (2006).
D. N. Sokolov, N. Yu. Sdobnyakov, and P. V. Komarov, Vestn. TvGU, Ser. Fiz., No. 16, 54 (2012).
D. N. Sokolov, V. S. Myasnichenko, A. P. Andriichuk, V. V. Kulagin, and N. Yu. Sdobnyakov, Phys. Chem. Aspects Study Clusters, Nanostruct. Nanomater. 8, 363 (2016).
A. Yu. Kolosov, D. N. Sokolov, V. S. Myasnichenko, N. Yu. Sdobnyakov, P. M. Ershov, and A. A. Khort, Phys. Chem. Aspects Study Clusters, Nanostruct. Nanomater. 9, 252 (2017).
C. Kittel, Introduction to Solid State Physics, 2nd ed. (Wiley, New York, 1956; Gostekhizdat, Moscow, 1957).
Encyclopedia of Chemistry, Ed. by I. L. Knunyants (Sovetskaya Entsiklopediya, Moscow, 1990), Vol. 2 [in Russian].
Physical Quantities. A Handbook (Energoatomizdat, Moscow, 1991), p. 288 [in Russian].
V. M. Samsonov, A. G. Bembel, A. Yu. Kartoshkin, S. A. Vasilyev, and I. V. Talyzin, J. Therm. Anal. Calorim. 133 (2), 1207 (2018).
F. Cleri and V. Rosato, Phys. Rev. B 48 (1), 22 (1993).
X. W. Zhou, R. A. Johnson, and H. N. G. Wadley, Phys. Rev. B 69 (14), 144113 (2004).
N. Yu. Sdobnyakov, P. V. Komarov, A. Yu. Kolosov, N. V. Novozhilov, D. N. Sokolov, and D. A. Kul’pin, Kondens. Sredy Mezhfaz. Granitsy 15 (3), 337 (2013).
N. Yu. Sdobnyakov, D. N. Sokolov, A. N. Bazulev, V. M. Samsonov, T. Yu. Zykov, and A. S. Antonov, Rasplavy, No. 5, 88 (2012).
V. M. Samsonov, N. Yu. Sdobnyakov, V. S. Myasnichenko, et al. J. Surf. Invest.: X-Ray Synchrotron Neutron Tech. 12 (6), 1206 (2018).
Funding
The work was supported by the Ministry of Education and Science of the Russian Federation within the framework of the state assignment in the sphere of scientific activity (project no. 3.5506.2017/BCh, project no. 2019-0126) and the Russian Foundation for Basic Research (grant nos. 18-03-00132, 18-38-00571).
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Samsonov, V.M., Sdobnyakov, N.Y., Talyzin, I.V. et al. Complex Approach to Atomistic Simulation of the Size Dependences of the Temperature and the Heat of Melting of Co Nanoparticles: Molecular Dynamics and Monte Carlo Method. J. Surf. Investig. 13, 1185–1188 (2019). https://doi.org/10.1134/S1027451019060478
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DOI: https://doi.org/10.1134/S1027451019060478