Research Interests:

It is shown that electrical conductance of a quantum conductor is a nonlinear function of an applied voltage. This nonlinearity may be caused due to the presence and spatial distributions of imperfectness (as point defects or vacancies) or electron – phonon interactions through the conductor. Moreover nonlinear conductance also depends on geometry of quantum conductor.

My research activities are focused on problems related to the nonlinear conductance of various quantum conductors ranging from quantum point contacts, metallic carbon nanotubes, Graphenes and molecular conductors. These studies are performed using different theoretical models and methods.

Recent publications:   

1. Electronic features induced by Stone-Wales defects in zigzag and chiral carbon nanotubes

P. Partovi-Azar, S. Panahian Jand, A. Namiranian and H. Rafii-Tabar, Computational Materials Science 79 (2013) 82.

 

 2. The Estimation of current and differential conductance of armchair single-wall carbon nanotubes via dissipative energy method

P. Ayria, and A. Namiranian, European. Physics. Journal. B  86 (2013)  4.

 

3. Stone–Wales defects can cause a metal–semiconductor transition in carbon nanotubes depending on their orientation

P. Partvi-Azar , and A. Namiranian, J. Phys.: Condens. matter  243 (2012) 035301.

 

 

 Full CV (PDF)