QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: meena on November 10, 2016, 05:57

Title: TMR
Post by: meena on November 10, 2016, 05:57

Hello

How to find the Tunnel Magneto Resistance at 0 bias voltage, since the current at zero bias are 0A


Thanks&Regards
Shweta

Title: Re: TMR
Post by: Anders Blom on November 10, 2016, 07:06

See http://docs.quantumwise.com/tutorials/fe_mgo_fe/fe_mgo_fe.html
The TMR can be defined via the conductance which is well-defined also at zero bias.

Title: Re: TMR
Post by: meena on November 13, 2016, 18:33

Hello

will the code given in the tutorial give TMR at 0 bias?? 

Title: Re: TMR
Post by: Petr Khomyakov on November 13, 2016, 19:55

Yes, it does give the TMR value at zero bias in terms of conductance calculated for parallel and anti-parallel magnetization configurations of the ferromagnetic electrodes.