238 citations · 980 across the 11 of their papers we have counts for
11 papers
Doping evolution of the superconducting gap structure in the underdoped iron arsenide Ba1-xKxFe2As2 revealed by thermal conductivity
J. -Ph. Reid, M. A. Tanatar, X. G. Luo +10
The thermal conductivity kappa of the iron-arsenide superconductor Ba1-xKxFe2As2 was measured for heat currents parallel and perpendicular to the tetragonal c axis at temperatures…
Expansion of the tetragonal magnetic phase with pressure in the iron-arsenide superconductor Ba{1-x}KxFe2As2
E. Hassinger, G. Gredat, F. Valade +11
In the temperature-concentration phase diagram of most iron-based superconductors, antiferromagnetic order is gradually suppressed to zero at a critical point, and a dome of superc…
Onset field for Fermi-surface reconstruction in the cuprate superconductor YBCO
G. Grissonnanche, F. Laliberte, S. Dufour-Beausejour +17
Quantum oscillations and negative Hall and Seebeck coefficients at low temperature and high magnetic field have shown the Fermi surface of underdoped cuprates to contain a small cl…
Universal V-shaped temperature-pressure phase diagram in the iron-based superconductors KFe2As2, RbFe2As2, and CsFe2As2
F. F. Tafti, A. Ouellet, A. Juneau-Fecteau +7
We report a sudden reversal in the pressure dependence of Tc in the iron-based superconductor RbFe2As2, at a critical pressure Pc = 11 kbar. Combined with our prior results on KFe2…
Sudden reversal in the pressure dependence of Tc in the iron-based superconductor CsFe2As2: A possible link between inelastic scattering and pairing symmetry
F. F. Tafti, J. P. Clancy, M. Lapointe-Major +11
We report a sudden reversal in the pressure dependence of Tc in the iron-based superconductor CsFe2As2, similar to that discovered recently in KFe2As2 [Tafti et al., Nat. Phys. 9,…
Direct measurement of the upper critical field in a cuprate superconductor
G. Grissonnanche, O. Cyr-Choiniere, F. Laliberte +20
The upper critical field Hc2 is a fundamental measure of the pairing strength, yet there is no agreement on its magnitude and doping dependence in cuprate superconductors. We have…
Change of pairing symmetry in the iron-based superconductor KFe2As2
F. F. Tafti, A. Juneau-Fecteau, M. -E. Delage +7
The pairing mechanism in iron-based superconductors is the subject of ongoing debate. Proximity to an antiferromagnetic phase suggests that pairing is mediated by spin fluctuations…
Superconductivity in the noncentrosymmetric half-Heusler compound LuPtBi : A possible topological superconductor
F. F. Tafti, Takenori Fujii, A. Juneau-Fecteau +4
We report superconductivity in the ternary half-Heusler compound LuPtBi, with Tc = 1.0 K and Hc2 = 1.6 T. The crystal structure of LuPtBi lacks inversion symmetry, hence the materi…
From d-wave to s-wave pairing in the iron-pnictide superconductor (Ba,K)Fe2As2
J. -Ph. Reid, A. Juneau-Fecteau, R. T. Gordon +18
The nature of the pairing state in iron-based superconductors is the subject of much debate. Here we argue that in one material, the stoichiometric iron pnictide KFe2As2, there is…
New Phase Induced by Pressure in the Iron-Arsenide Superconductor K-Ba122
E. Hassinger, G. Gredat, F. Valade +10
The electrical resistivity rho of the iron-arsenide superconductor Ba1-xKxFe2As2 was measured in applied pressures up to 2.6 GPa for four underdoped samples, with x = 0.16, 0.18, 0…
Universal heat conduction in the iron-arsenide superconductor KFe2As2 : Evidence of a d-wave state
J. -Ph. Reid, M. A. Tanatar, A. Juneau-Fecteau +12
The thermal conductivity of the iron-arsenide superconductor KFe2As2 was measured down to 50 mK for a heat current parallel and perpendicular to the tetragonal c-axis. A residual l…