Postdoctoral Research Associate
Computational Chemical Sciences Group
Computer Science and Mathematics Division

Education, Professional Experience, Activities, and Honors: Kamal received his BSc degree in Mathematics in 1996 from Dhaka University in Dhaka of Bangladesh and his MSc degree in Applied Mathematics in 1998 from the same University. As a promising foreign scholar, he received a five years' research fellowship for his doctoral research from the Department of Science and Technology of the Government of India. He completed his PhD in December of 2004 under the supervision of Professor Abhijit Mookerjee at S. N. Bose National Centre for Basic Sciences, India. His PhD research focuses on developing a computational scheme to study optical properties of compounds and disordered alloys, and also on analyzing available experimental data. During his PhD, he visited a number of Institutes at home and abroad for seminar presentations and research collaborations. Before he joined the ORNL, he worked as a postdoctoral researcher in Professor Patrick Bruno's Group at Max Planck Institute of Microstructure Physics, Germany. There he developed a real space technique to study spin-polarized scanning tunneling microscopy (STM) and spectroscopy (STS). Presently, he is a postdoctoral research associate of Dr Vincent Meunier at ORNL, working in strong collaboration with Professor Jerry Bernholc's Group at NC State University.

Interests and Expertise: Dr Saha is currently concentrating on a large-scale code-development work on multi-probe tunnel junction for transport studies of molecular devices. He still has collaboration with his previous group in the area of spin-polarized STM junction. He is also interested in the detailed study of: (a) electronic transport in multiferroic tunnel junctions; (b) optical response of binary and ternary alloys; (c) short-range order in alloys.

Relevant Publications:

1. K. K. Saha, J. Henk, A. Ernst and P. Bruno "Multiple-scattering theoretical approach to spin-resolved scanning tunneling microscopy", Communicated to Phys. Rev. B. (2007).
2. J. Henk, A. Ernst, K. K. Saha and P. Bruno "Computing conductances of tunnel junctions by the Korringa-Kohn-Rostoker ethod: formulation and test of a Green function approach", J. Phys.: Condens. Matter 18, 2601-2614 (2006).
3. K. Tarafder, A. Chakrabarti, K. K. Saha and A. Mookerjee "Effect of short-range order on the electronic structure and optical properties of the CuZn alloys: An augmented space approach ", Phys. Rev. B 74, 144204 (2006).
4. K. Tarafder, K. K. Saha, A. Alam and A. Mookerjee "Response functions in disordered alloys: an approach via the augmented space recursion", J. Phys.: Conf. Ser. 29, 27-38 (2006).
5. K. K. Saha and A. Mookerjee "Optical properties of random alloys: application to CuAu and NiPt", J. Phys.: Condens. Matter 17, 4559-4566 (2005).
6. K. K. Saha, A. Mookerjee and O. Jepsen "Electronic structure of random binary alloys: An augmented space formulation in reciprocal space", Phys. Rev. B 71, 094207 (2005).
7. K. K. Saha and A. Mookerjee "Electronic structure and response functions in random alloys: an application of block recursion and Green matrices", J. Phys.: Condens. Matter 17, 287-229 (2005).
8. K. K. Saha and A. Mookerjee "Optical properties of random alloys: A formulation", Phys. Rev. B 70, 134205 (2004).
9. B. Ganguli, K. K. Saha, T. Saha-Dasgupta, A. Mookerjee and A. K. Bhattacharya "Electronic and optical properties of ZnIn2Te4", Physica B: Condensed Matter 348, 382-390 (2004).
10. K. K. Saha, T. Saha-Dasgupta, A. Mookerjee and I. Dasgupta "Symmetry reduction in the augmented space recursion formalism for random binary alloys", J. Phys.: Condens. Matter 16, 1409-1423 (2004).
11. K. K. Saha, T. Saha-Dasgupta, A. Mookerjee, S. Saha and T. P. Sinha "Optical properties of perovskite alkaline-earth titanates: a formulation", J. Phys.: Condens. Matter 14, 3849-3863 (2002).

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