Article
Molecular-dynamics simulations of premelting processes in Cr2O3
Author/s | San Miguel Barrera, Miguel Ángel
Fernández Sanz, Javier Álvarez, Luis Javier Odriozola Gordón, José Antonio |
Department | Universidad de Sevilla. Departamento de Química Física Universidad de Sevilla. Departamento de Química Inorgánica |
Publication Date | 1998 |
Deposit Date | 2017-05-08 |
Published in |
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Abstract | Molecular-dynamics simulations of the (0001) surface Of Cr2O3 were carried out in the [300-2800 K] range of temperatures using a classical Pauling-type pair potential. The analysis of the structural data shows a strong ... Molecular-dynamics simulations of the (0001) surface Of Cr2O3 were carried out in the [300-2800 K] range of temperatures using a classical Pauling-type pair potential. The analysis of the structural data shows a strong surface relaxation in agreement with experiment. Both static and dynamic surface properties indicate that a surface melting process occurs well below the melting point, which is estimated to be about 2500 K, in excellent agreement with the experimental value of 2556 K. The diffusive properties of this disordered phase are described and it is found that the main mechanism for diffusion involves hopping of surface atoms. |
Funding agencies | Comisión Interministerial de Ciencia y Tecnología (CICYT). España |
Project ID. | MAT97- 0717
PB95-1247 |
Citation | San Miguel Barrera, M.Á., Fernández Sanz, J., Álvarez, L.J. y Odriozola Gordón, J.A. (1998). Molecular-dynamics simulations of premelting processes in Cr2O3. Physical Review B - Condensed Matter and Materials Physics, 58 (10), 6057-6062. |
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