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Quantum magnetoresistance of the PrFeAsO oxypnictide

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Quantum magnetoresistance of the PrFeAsO oxypnictide
Creator Bhoi, D
Mandal, P
Choudhury, Pranab
Pandya, S
Ganesan, V
Subject Semiconductors
Description 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]
Type Article
Format application/pdf
Identifier http://cgcri.csircentral.net/76/1/Appl_Phys_Lett_98(2011)_172105.pdf
Bhoi, D and Mandal, P and Choudhury, Pranab and Pandya, S and Ganesan, V Quantum magnetoresistance of the PrFeAsO oxypnictide. APPLIED PHYSICS LETTERS, 98 (17). Article No-172105 . ISSN 0003-6951
Relation http://cgcri.csircentral.net/76/