You are here

Doping evolution of the superconducting gap structure in the underdoped iron arsenide Ba1-xKxFe2As2 revealed by thermal conductivity

TitleDoping evolution of the superconducting gap structure in the underdoped iron arsenide Ba1-xKxFe2As2 revealed by thermal conductivity
Publication TypeJournal Article
Year of Publication2016
AuthorsReid, JP, Tanatar, MA, Luo, XG, Shakeripour, H, de Cotret, SR, Juneau-Fecteau, A, Chang, J, Shen, B, Wen, HH, Kim, H, Prozorov, R, Doiron-Leyraud, N, Taillefer, L
JournalPhysical Review B
Volume93
Pagination214519
Date Published06
Type of ArticleArticle
ISBN Number2469-9950
Accession NumberWOS:000378809800005
Keywordsphysics
Abstract

0 at any doping, whether for in- plane or interplane transport. This shows that there are no nodes in the superconducting gap. However, as x decreases into the range of coexistence with antiferromagnetism, the residual linear term grows more and more rapidly with applied magnetic field. This shows that the superconducting energy gap develops minima at certain locations on the Fermi surface and these minima deepen with decreasing x. We propose that the minima in the gap structure arise when the Fermi surface of Ba1-xKxFe2As2 is reconstructed by the antiferromagnetic order.

DOI10.1103/PhysRevB.93.214519
Custom 1

Complex States

Alternate JournalPhys. Rev. B