Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Won Ha Moon"'
Publikováno v:
Applied Surface Science. 253:7078-7081
We propose the parameters of the Stillinger–Weber potential for hexagonal boron nitride (BN) structures. For the reliability of these parameters, the structural property of BN fullerenes is investigated. The stability of BN fullerenes increases wit
Publikováno v:
physica status solidi c. 4:1411-1414
Thermodynamic properties of InxGa1–xN MOVPE are investigated using x -dependent interaction parameter. The interaction parameter (Ω = –1.3435x + 6.1607 (kcal/mol)) dependent on In composition is calculated using a molecular-mechanics method to i
Publikováno v:
Scripta Materialia. 56:345-348
The structural stability and melting characteristics of hexagonal GaN nanowires are investigated using molecular dynamics simulations. The GaN nanowire with (1 0 −1 0) facets is energetically more stable than that with (1 1 −2 0). The melting tem
Autor:
Won Ha Moon, Chang Hwan Choi
Publikováno v:
Physics Letters A. 352:538-542
The structures and the formation energy of inversion domain boundaries (IDBs) are investigated using the Tersoff empirical potential. Four kinds of IDBs (A and B types for IDB* and Holt) are considered. The IDBs with A type are energetically favorabl
Autor:
Won Ha Moon, Ho Jung Hwang
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 28:419-422
We investigate the structure and the formation energy of the pentagon–heptagon pairs (5775) defects of BN nanotubes using a molecular-mechanics method. For (n, 0) BN nanotubes, the homoelemental bonds of the 5775 defect may be located nearly either
Autor:
Won Ha Moon, Ho Jung Hwang
Publikováno v:
Applied Surface Science. 239:376-380
We have proposed the parameters of the Stillinger–Weber potential for boron nitride. The structural properties and the elastic constant of boron nitride have been investigated using molecular-dynamics simulation. The thermodynamics properties, such
Publikováno v:
physica status solidi (b). 241:1783-1788
Autor:
Ho Jung Hwang, Won Ha Moon
Publikováno v:
Materials Letters. 58:2331-2334
We investigate the structure and the formation energy of defects of boron nitride (BN) nanotubes with tetragon–octagon pairs (4884) through a force field approach. Four kinds of 4884 defects [type A and type B for (n, 0) and (n, n) nanotubes] are c
Autor:
Won Ha Moon, Ho Jung Hwang
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 23:26-30
The optimized structure of boron nitride nanotubes is investigated, based on the Universal force field. Bond length, diameter deviation, and buckling of boron nitride nanotubes increase with decreasing diameter. This is caused by different hybridizat
Autor:
Ho Jung Hwang, Won Ha Moon
Publikováno v:
Nanotechnology. 15:431-434
We investigate the structure and thermal behaviour of boron nitride (BN) nanotubes using molecular-dynamics simulations based on the Tersoff-like potential. The strain energy decreases with increasing diameter, which is proportional to the inverse sq