212 citations · 296 across the 7 of their papers we have counts for
6 papers · 1 filter
Magic gap ratio for optimally robust fermionic condensation and its implications for high-Tc superconductivity
N. Harrison, M. K. Chan
Bardeen-Schrieffer-Cooper (BCS) and Bose-Einstein condensation (BEC) occur at opposite limits of a continuum of pairing interaction strength between fermions. A crossover between t…
Quasiparticle mass enhancement approaching optimal doping in a high-Tc superconductor
B. J. Ramshaw, S. E. Sebastian, R. D. McDonald +8
In the quest for superconductors with high transition temperatures (Ts), one emerging motif is that unconventional superconductivity is enhanced by fluctuations of a b…
Chemical potential oscillations from a single nodal pocket in the underdoped high-Tc superconductor YBa2Cu3O6+x
Suchitra E. Sebastian, N. Harrison, M. M. Altarawneh +4
The mystery of the normal state in the underdoped cuprates has deepened with the use of newer and complementary experimental probes. While photoemission studies have revealed solel…
Direct observation of multiple spin zeroes in the underdoped high temperature superconductor YBa2Cu3O6+x
Suchitra E. Sebastian, N. Harrison, M. M. Altarawneh +6
We report the direct observation of multiple `spin zeroes' in angle-dependent magnetic quantum oscillations measured up to 85T in YBa2Cu3O6+x, at which the amplitude falls to a dee…
Quantum oscillations in antiferromagnetic CaFe2As2 on the brink of superconductivity
N. Harrison, R. D. McDonald, C. H. Mielke +3
We report quantum oscillation measurements on CaFe2As2 under strong magnetic fields- recently reported to become superconducting under pressures of as little as a kilobar. The larg…
Dimensionality of superconductivity in the infinite-layer high-temperature cuprate Sr0.9M0.1CuO2 (M = La, Gd)
V. S. Zapf, N. -C. Yeh, A. D. Beyer +6
The high magnetic field phase diagram of the electron-doped infinite layer high-temperature superconducting (high-T_c) compound Sr_{0.9}La_{0.1}CuO_2 was probed by means of penetra…