Quantum magnetoresistance of the PrFeAsO oxypnictide

D. Bhoi; P. Mandal; P. Choudhury; S. Pandya; V. Ganesan

doi:10.1063/1.3584023

Quantum magnetoresistance of the PrFeAsO oxypnictide

D. Bhoi
, P. Mandal
, P. Choudhury
, S. Pandya
, V. Ganesan

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

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 T40 K, MR versus B curve develops a weak curvature in the low-field region which indicates a crossover from B linear to B² 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.

Original language	English
Article number	172105
Journal	Applied Physics Letters
Volume	98
Issue number	17
DOIs	https://doi.org/10.1063/1.3584023
State	Published - Apr 25 2011
Externally published	Yes

Funding

The authors would like to thank A. Pal, S. Banerjee, A. Midya, and N. Khan for technical help and K. Sengupta for useful discussion. V. Ganesan would also like to thank DST, India for financial assistance for the 14 T physical property measurement system facility at CSR, Indore.

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title = "Quantum magnetoresistance of the PrFeAsO oxypnictide",

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 T40 K, MR versus B curve develops a weak curvature in the low-field region which indicates a crossover from B linear to B2 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.",

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AU - Bhoi, D.

AU - Mandal, P.

AU - Choudhury, P.

AU - Pandya, S.

AU - Ganesan, V.

PY - 2011/4/25

Y1 - 2011/4/25

N2 - 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 T40 K, MR versus B curve develops a weak curvature in the low-field region which indicates a crossover from B linear to B2 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.

AB - 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 T40 K, MR versus B curve develops a weak curvature in the low-field region which indicates a crossover from B linear to B2 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.

UR - https://www.scopus.com/pages/publications/79955701926

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DO - 10.1063/1.3584023

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VL - 98

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

M1 - 172105

ER -

Quantum magnetoresistance of the PrFeAsO oxypnictide

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