2. Introduction
BTK Model
Calculation of Probability Current Densities at NS
Junction
NS Junction at Finite Bias Voltage (I-V Characteristics)
Calculation of Differential Conductance
Conclusion
Acknowledgment
3. Three Major Quantum Mechanical Scattering
Processes at NS Interface
Andreev Reflection
Transmission
Normal Reflection
Andreev Reflection Process
in an energy diagram
4. Potential barrier at NS interface
Bogoliubov transformations
with
where uk and vk are the BCS coherence factors
16. In conclusion we have reviewed the BTK theory
and its assumptions.
A full account on BTK derivation of the I-V
equation using the Bogoliubov equations and the
boundary conditions provided.
The resultant electric current and differential
conductance have been calculated using the BTK
current equation.
17. I am very thankful to IOP for this wonderful opportunity to
do a summer research project here.
I would like to extend my thanks to Prof. Goutam Tripathy
for providing all the necessary facilities during the stay in
IOP.
