zIn three dimentional:0(ln Box)CV(x,y,z)b(Out of Box)8V2Qh?y(x, y,z)=Ey(x, y,z)8元2maz01dx2/2n,元x5n元zw(x,y,zsinsinsinVabeah?nih?hih?n.E8mb?2nxnyn8mc8ma n.=1, 2, 3...: n.=1, 2, 3..n.=1, 2, 3...;
x y z a b c 2 2 2 2 2 2 2 2 ( ) ( , , ) E ( , , ) 8 h x y z x y z m x y z In three dimentional: (In Box) (Out of Box)
Bonding in solids and electronic propertiesFree electron theoryk is called the wave yector and is related to themomentum of the electron wave as can be seen bycomparingtheclassicalexpressionE = p?/2mwhere p is the momentum, with the expressionabove.This gives the electron momentum as ±kh
Bonding in solids and electronic properties Free electron theory k is called the wave vector and is related to the momentum of the electron wave as can be seen by comparing the classical expression E = p 2 /2m where p is the momentum, with the expression above. This gives the electron momentum as ±kh