Vivek Ranjan


      Research Associate,

      Center for High Performance Simulations,

      Physics Department,

      NC State University,

      Camus Box 7518,

      Raleigh, NC 27606

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A brief resume

I am a currently at the NC State University working in the group of Prof. Jerry Bernholc and Prof. Marco Buongiorno Nardelli. I am currently doing first-principles simulations on polymers which can be used as dielectric. 

October, 2002 - present : research associate with Prof. Laurent Bellaiche at the department of physics, University of Arkansas, USA. Several projects : (i) first-principles (a) electronic structure, (b) piezoelectric response (berry phase), (c) phonon calculation of semiconductors, (ii) dilute magnet using first-principles methods, (iii) semi-empirical pseudopotential studies of semiconductor quantum dots.

October, 2001 - September, 2002 : research associate (project : tight-binding studies of GaN pyramidal quantum dots) with Prof. Christophe Delerue and Prof. Guy Allan at IEMN,  Lille, France.

Ph.D. (title : Electronic structure of semiconductor nanostructures) under the guidance of Prof. Vijay A. Singh at the department of physicsI.I.T., Kanpur, India in May, 2002. I also worked with Prof. Manoj K. Harbola during my Ph.D.

Research Interests  

Ferroelectric polymers - in capacitor appilications and energy storage.

III-nitrides and alloys.

Phase transition - strain, high pressure, and electric field - of solids. 

Magnetism

Semiconductor quantum dots. These materials are called by many exotic names  such as Digital Materials, QUEST (Quantized Electronic Structure), Artificial Atoms, etc.

Skills

First principles, Tight-binding, and Effective Mass Theory based electronic structure, molecular dynamics, and density functional perturbation theory calculations.

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