Quasiparticle scattering induced by charge doping of iron-pnictide superconductors probed by collective vortex pinning

Cornelis J. Van Der Beek, Marcin Konczykowski, Shigeru Kasahara, Takahito Terashima, Ryuji Okazaki, Takasada Shibauchi, Yuji Matsuda

研究成果査読

42 被引用数 (Scopus)

抄録

Charge doping of iron-pnictide superconductors leads to collective pinning of flux vortices, whereas isovalent doping does not. Moreover, flux pinning in the charge-doped compounds is consistently described by the mean-free path fluctuations introduced by the dopant atoms, allowing for the extraction of the elastic quasiparticle scattering rate. The absence of scattering by dopant atoms in isovalently doped BaFe2(As1-xPx) 2 is consistent with the observation of a linear temperature dependence of the low-temperature penetration depth in this material.

本文言語English
論文番号267002
ジャーナルPhysical Review Letters
105
26
DOI
出版ステータスPublished - 12月 22 2010
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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