QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: anshul34 on August 13, 2012, 06:55

Title: charcristic
Post by: anshul34 on August 13, 2012, 06:55

Dear QuantumWise

Why always jenerated linear graph of any devices in atk. Is it possible to be jenerated non linear graph in atk ?????

Thanks & Regards
 

Title: Re: charcristic
Post by: Anders Blom on August 13, 2012, 08:58

In a word: huh?  ??? You have to be much more detailed in your question.

Title: Re: charcristic
Post by: anshul34 on August 13, 2012, 10:07

Dear QuantumWise,
 
Acutallly my question is  , it is possible to be jenerated  non linear graph  of devices example is ni-graphene junction , p-n diode,and any diode  ???

Title: Re: charcristic
Post by: Anders Blom on August 13, 2012, 10:27

Graph of what?

Title: Re: charcristic
Post by: anshul34 on August 13, 2012, 11:54

 Dear QuantumWise,

graph means I-V CHAR. OF device configuration

Title: Re: charcristic
Post by: Anders Blom on August 13, 2012, 12:48

I suggest you have a look at the many publications made with ATK, http://quantumwise.com/documents/ATK_Publication_List.html. You will see many cases of non-linear I-V, incl. NDR, for a multitude of device types.

Title: Re: charcristic
Post by: anshul34 on August 13, 2012, 13:04

Dear QuantumWise,

can u provide any paper related to the non linear graph of device configuration ????????????????

Title: Re: charcristic
Post by: Anders Blom on August 13, 2012, 13:49

Search for "ndr" on the page I posted the link to above and you get over 50 references. But in general, ATK doesn't make any assumption of linearity, so any calculation for a device you make with ATK will be non-linear. Then of course if the transmission happens to be trivially constant as a function of energy and bias independent, you would get a linear I-V, but that's just by accident, not by assumption in the calculation model.