National Institute of Technology Rourkela

राष्ट्रीय प्रौद्योगिकी संस्थान राउरकेला

ଜାତୀୟ ପ୍ରଯୁକ୍ତି ପ୍ରତିଷ୍ଠାନ ରାଉରକେଲା

An Institute of National Importance

Syllabus

Course Details

Subject {L-T-P / C} : PH6343 : Mesoscopic Physics { 3-0-0 / 3}

Subject Nature : Theory

Coordinator : Jyoti Prakash Kar

Syllabus

Module 1 :

Module 1( 6 Hours)
Band Structure, Density of states of different dimensions.Effect of density of state on electronic transport, Drude theory for electrical conductivity, Motion of electrons in crystal, Boltzman Transport equation, Electrical Conductivity Formula and Einstein Relation. Breakdown of Classical Transport..
Module 2(7 Hours)
Linear Response Theory. Electrical resistivity due to electron-electron and electron-phonon interaction. Electronic Transport in the presence of Spin-Orbit interaction. Defnition of the Conductance. Hall Effect and quantum Hall effect. Integer Quantum Hall effect, Fractional Quantum Hall effect.
Module-3(8Hours)
Fermi liquid theory and its Limitation. Fermi liquid theory for Phase coherence and effect of disorder, Interference phenomena. Magnetoresistance(Positive and negative MR), Scaling theories of disordered system. Anderson Scalling theory. Localization (weak localization and strong localization). Dephasing and renormalization. Ballistic transport, VRH, ES-VRH, Fluctuation Induced Transport mechanism (FIT), metal-insulator transition in transport behavior.
Module 4(6 Hours)
Aharonov-Bhom effect, conductance quantization, Landau levels, Shubnikov-de Haas oscillations, The Aharonov-Bohm effect. Coulomb blockade effects. Universal conductance fluctuations.
Module: 5( 7 Hours)
Landauer–Büttiker formalism. Kondo effect. Dephasing in interacting system (Luttinger liquid theory). Breit-Wigner resonance and Fano resonance. Quantum dots, electronic states in quantum dots, transport across quantum dots.

Course Objective

1 .

Physics about macroscopic objects

2 .

The basic mechanisms of electronic transport at the mesoscopic or nanoscopic scales, where the macroscopic laws no longer apply and where new concepts related to quantum mechanics

3 .

Possible applications in nano-electronics, it is essential to understand the basic physical properties such as electrical transport of mesoscopic materials. Transport mechanism in ordered and disordered materials. Afterwards the transport mechanism in low dimensional material.

4 .

Aharonov-Bhom effect, conductance quantization, Landau levels, Shubnikov-de Haas oscillations, Coulomb blockade effects and universal conductance fluctuations and Landauer–Büttiker formalism.

Course Outcome

1 .

CO-1: Learn about the physics of mesoscopic objects.
CO-2: learn Electrical transport phenomena in mesoscopic scale.
CO-3: Learn Fermi Liquid theory for phase coherence and effect of disorder.
CO-4: Learn Aharonov-Bhom effect, conductance quantization, Landau levels, Shubnikov-de Haas
Oscillations.
CO-5: Learn about electronic states in quantum dots and transport across quantum dots.

Essential Reading

1 .

Y. Imry, Introduction to Mesoscopic Physics, Oxford University Press , 1997

2 .

S. Datta, Electronic Transport in Mesoscopic Systems, Cambridge University Press , 1997

Supplementary Reading

1 .

T. Ihn, Electronic Quantum Transport in Mesoscopic Semiconductor Structures, Springer Tracts in Modern Physics , Vol. 192, 2003

2 .

D. K. Ferry, S. M. Goodnick, and J. Bird, Transport in Nanostructures, Cambridge University Press , 2009