Bhoi, D and Mandal, P and Choudhury, Pranab and Pandya, S and Ganesan, V (2011) Quantum magnetoresistance of the PrFeAsO oxypnictide. Applied Physics Letters, 98 (17). Article No-172105 . ISSN 0003-6951

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Abstract

We report the observation of an unusual B dependence of transverse magnetoresistance (MR) in the PrFeAsO, one of the parent compound of pnictide superconductors. Below the spin density wave transition, MR is large, positive and increases with decreasing temperature. At low temperatures, MR increases linearly with B up to 14 T. For T >= 40 K, MR versus B curve develops a weak curvature in the low-field region which indicates a crossover from B linear to B(2) dependence as B -> 0. The B linear MR originates from the Dirac cone states and has been explained by the quantum mechanical model proposed by Abrikosov. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3584023]

Item Type:	Article
Subjects:	Electronics > Semiconductors
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	19 Jan 2012 09:53
Last Modified:	31 Jan 2013 11:18
URI:	http://cgcri.csircentral.net/id/eprint/395

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