$contact

$contact can determine what is type of contact in your setting. This function should be use with $xd.

Format

$contact
type_contact1
type_contact2
...
type_contactn

Parameter explanation

• type : 21 is Gate, 3 is source, 4 is drain. 98 is for fix thermal boundary, 99 is thermal diffusive boundary

Example

$contact
3
21
4

$xd 
-0.0001   19.9999 
25.0000   38.0000 
50.0001   70.0000

This function should be used with $xd.

21 is the gate contact. It comes with the setting of Schottky barrier setting $Schottky and gate bias setting $gatebias. If the electron affinity is used, user will need to setup $gatewithworkfunc instead of using $Schottky
3 is for the source contact. The program will find the barrier of contact with the doping setting. 
4 is for the drain contact. The program will find the barrier of contact with the doping setting. 
7 is no contact. Actually this is redundent. But some time it goes with some advance settings.
9x is for thermal contact. 98 is fixed boundary setting. Where the contact area is set as constant temperature. 99 is for thermal diffusive boundary condition. 

$xd,