Both electron and hole Dirac cone states in Ba(FeAs)2 confirmed by magnetoresistance

Khuong K. Huynh, Yoichi Tanabe, Katsumi Tanigaki

研究成果: Article査読

108 被引用数 (Scopus)

抄録

Quantum transport of Dirac cone states in the iron pnictide Ba(FeAs) 2 with a d-multiband system is studied by using single crystal samples. Transverse magnetoresistance develops linearly against the magnetic field at low temperatures. The transport phenomena are interpreted in terms of the zeroth Landau level by applying the theory predicted by Abrikosov. The results of the semiclassical analyses of a two carrier system in a low magnetic field limit show that both the electron and hole reside as the high mobility states. Our results show that pairs of electron and hole Dirac cone states must be taken into account for an accurate interpretation in iron pnictides, which is in contrast with previous studies.

本文言語English
論文番号217004
ジャーナルPhysical review letters
106
21
DOI
出版ステータスPublished - 2011 5月 25

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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