82 citations · 113 across the 2 of their papers we have counts for
6 papers
Anisotropic spin and charge excitations in superconductors: signature of electronic nematic order
Ying-Jer Kao, Hae-Young Kee
We study spin and charge susceptibilities in the d-wave superconducting state whose underlying electronic dispersion is anisotropic due to the formation of the electronic nematic o…
Understanding Paramagnetic Spin Correlations in the Spin-Liquid Pyrochlore Tb2Ti2O7
Ying-Jer Kao, Matthew Enjalran, Adrian Del Maestro +2
Recent elastic and inelastic neutron scattering studies of the highly frustrated pyrochlore antiferromagnet Tb2Ti2O7 have shown some very intriguing features that cannot be modeled…
Magnetic Field Effects in the Pseudogap Phase: A Precursor Superconductivity Scenario
Andrew P. Iyengar, Ying-Jer Kao, Qijin Chen +1
We demonstrate that the observed dependences of and on small magnetic fields can be readily understood in a precursor superconductivity approach to the pseudogap phase.…
Origin of the pseudogap phase: Precursor superconductivity versus a competing energy gap scenario
K. Levin, Qijin Chen, Ioan Kosztin +3
In the last few years evidence has been accumulating that there are a multiplicity of energy scales which characterize superconductivity in the underdoped cuprates. In contrast to…
Magnetic Field Effects in the Pseudogap Phase: A Competing Energy Gap Scenario for Precursor Superconductivity
Ying-Jer Kao, Andrew P. Iyengar, Qijin Chen +1
We study the sensitivity of T_c and T^* to low fields, H, within the pseudogap state using a BCS-based approach extended to arbitrary coupling. We find that T^* and T_c, which are…
Pair Excitations, Collective Modes and Gauge Invariance in the BCS -- Bose-Einstein Crossover Scenario
Ioan Kosztin, Qijin Chen, Ying-Jer Kao +1
In this paper we study the BCS Bose Einstein condensation (BEC) crossover scenario within the superconducting state, using a T-matrix approach which yields the ground state propose…