TY - JOUR
T1 - Quasiparticle scattering induced by charge doping of iron-pnictide superconductors probed by collective vortex pinning
AU - Van Der Beek, Cornelis J.
AU - Konczykowski, Marcin
AU - Kasahara, Shigeru
AU - Terashima, Takahito
AU - Okazaki, Ryuji
AU - Shibauchi, Takasada
AU - Matsuda, Yuji
PY - 2010/12/22
Y1 - 2010/12/22
N2 - 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.
AB - 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.
U2 - 10.1103/PhysRevLett.105.267002
DO - 10.1103/PhysRevLett.105.267002
M3 - Article
AN - SCOPUS:78650449184
SN - 0031-9007
VL - 105
JO - Physical Review Letters
JF - Physical Review Letters
IS - 26
M1 - 267002
ER -