md2011-08-note_Part_1

md2011-08-note_Part_1 - Molecular Dynamics simulations...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Molecular Dynamics simulations Lecture 08: Covalent interaction models Dr. Olli Pakarinen Original lecture notes by Dr. Jani Kotakoski, 2010 University of Helsinki Fall 2011 Introduction I This lecture deals with interaction models developed for materials with covalent bonding; typically semiconductors and insulators I The most often encountered semiconductor lattices are diamond and zincblende I Although there are only three elements which have the diamond structure (C, Si and Ge), being able to model this lattice is crucially important for, e.g., semiconductor industry I Also, the most common compound semiconductors (GaAs, AlAs, InAs, etc.) exhibit the zincblende structure (two-element diamond structure) I In the diamond structure, each atom has four neighbors attached together via covalent bonding I Hence, it requires a group IV element with four valence electrons I The zincblende compound structures are formed from one group III element (B, Al, Ga, ...) and one group V element (N, P, As, ...) I Diamond structure can be formed by...
View Full Document

{[ snackBarMessage ]}

Page1 / 5

md2011-08-note_Part_1 - Molecular Dynamics simulations...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online