Know the band structure of a metal under zero bias and with voltage bias, including direction of electric field / battery. Be able to mark all important features on the diagram and label them correctly including Ef, Eb, the workfunction. Be able to draw diagrams of bonding and antibonding wavefunctions for electrons in a metal. Be able to describe an experiment that supports the idea of band structure in a metal and from which E; can be calculated. Know how to calculate electric velocity from Fermi energy for a metal. Be able to describe how conduction in a metal occurs in terms of the momentum transferred to electrons. Calculation of current density from electric field for a metal (see Semester 1). Constructive interference H H H H H H (b) Bonding probability density Destructive interference (c) Wave functions combined for d; (d) Antibonding probability density