Magnetotransport Study on Iron Doped Novel 2D Nanoribbons via Electron – Acoustical Phonon Interactions Ankur Pandya * ,‡ and Prafulla K. Jha † * Department of Physics, Institute of Technology Nirma University, Ahmedabad 382481, India † Department of Physics, Faculty of Science The M.S. University of Baroda, Vadodara 390002, India ‡ ankur.pandya@nirmauni.ac.in Received 19 August 2017 Accepted 3 December 2017 Published 29 January 2018 The electron transport parameters such as electron energy relaxation rate and phonon limited electron resistivity for iron (transition metal) doped 2D nanoribbons of armchair graphene nanoribbon (aGNR) and h-boron nitride nanoribbon (h-BNNR) have been cal- culated via hot electron acoustical phonon interactions on the basis of acoustical deforma- tion potential (ADP) coupling mechanism. We have performed the investigation for the lower concentration (x ¼ 1%) of iron doping under the in°uence of externally applied magnetic ¯eld at low temperature to room temperature regime. The hot electron acoustical phonon relaxation rates are observed with electric ¯eld and under constant applied magnetic ¯eld. The doping of iron increases the electron energy relaxation rate with respect to their pristine counter parts. Moreover, the pristine h-BNNR exhibits less electron energy relax- ation rate with respect to pristine aGNR. Upon applying magnetic ¯eld on Fe doped arm- chair GNR as well as Fe-doped h-BNNR the electron energy relaxation rate reduces down to a considerable extent with respect to their pristine counterparts. Moreover, under the impact of magnetic ¯eld, the acoustical phonon restricted electrical resistivity of Fe-doped GNR is considerably low compared to pristine GNR. Keywords : Graphene nanoribbon; boron nitride nanoribbon; hot electron magnetotransport parameters; electronic resistivity; electron energy loss rate. 1. Introduction In the unstoppable challenging journey of producing and analyzing electronic and magnetic devices, the novel two dimensional (2D) materials such as gra- phene nanoribbon (GNR) and boron nitride nanoribbon (BNNR) play key roles. In this context, among the entire group of 2D materials, there is hardly any material as marvelous as GNR and BNNR. The structure of both the materials is very similar to each other (Fig. 1). Being the monoa- tomic carbon layer arranged in a honeycomb lattice, graphene possesses unique attractive properties by the virtue of which it has attracted strong scienti¯c and technological interests. 1–4 Graphene has shown International Journal of Nanoscience Vol. 17, No. 6 (2018) 1850010 (7 pages) # . c World Scienti¯c Publishing Company DOI: 10.1142/S0219581X18500102 1850010-1 Int. J. Nanosci. 2018.17. Downloaded from www.worldscientific.com by 107.175.203.142 on 08/08/19. Re-use and distribution is strictly not permitted, except for Open Access articles.