Preface


Virtual NanoLab	Introduction

Welcome to Virtual NanoLab (VNL), QuantumWise's electronic structure and transport modeling software.

In this Tutorial, we will demonstrate the basic features of VNL by studying a few simple nanoscale systems and show you how to

create different molecule systems using the Molecular Builder tool.
investigate molecule and bulk system by using the NanoLanguage Scripter tool.
use the Atomic Manipulator tool to analyze two-probe systems by
- building a hydrogen molecule.
- setting up periodic systems (a lithium bulk crystal and a chain of lithium atoms).
- use the above molecule and crystal systems to setup two different two-probe systems: a hydrogen molecule wedged in between two semi-infinite lithium chains and a DTB molecule between [111] fcc Li surfaces.
investigate ballistic transport properties of carbon nanotubes with the Nanotube Grower tool.

The tutorial is organized as a guided tour through VNL where you should carry out each instructions step-by-step to gain practical experience. We recommend that you do the tutorials in order and do not jump between different topics since some steps require that the previous step is completed. You can navigate through the on-line tutorial easily in the intended order by using the links Next and Previous.

From within VNL, you can access the tutorial by using the menu selection Help → Tutorial.

For details on how to install and start the program, please refer to the Installation Guide, which is available from the download section of the QuantumWise web site.

In general, this tutorial does not aim to explain all details of the covered topics but mainly focus on presenting the basic usage of the program. For further (specific and technical) information about VNL, take a look at the section Going further with Virtual NanoLab.

In addition, the following style guidelines are used throughout the tutorial

Bold text is used to indicate key concepts. In some cases, the words in bold face also correspond to items in the user interface such as the text on buttons.
Underlined monospace text is used for menu items (including context menus).
Regular monospace text corresponds to names of files or directories.
With this one exception, text set in underlined blue is a clickable link to other tutorial sections.

Good luck and have fun with the tutorial.