29 citations · 76 across the 32 of their papers we have counts for
32 papers
Studies of doping and temperature dependences of superfluid weight and spectral function; Universal scaling behavior of pseudogap
Sung-Sik Lee, Sung-Ho Suck Salk
Using the improved U(1) and SU(2) slave-boson approaches of the t-J Hamiltonian that we developed recently, we study the doping and temperature dependence of superfluid weight and…
Quantum phase transitions in superconductors
Ki-Seok Kim, Sung-Sik Lee, Jae-Hyeon Eom +1
Based on an effective Lagrangian obtained from the holon-pair boson theory of Lee and Salk [Phys. Rev. B {\bf 64}, 052501 (2001)] for high cuprates, we explore physical state…
Absence of time-reversal symmetry breaking in association with the order parameter of Cooper pair in high superconductivity
Sung-Sik Lee, Ki-Seok Kim, Jae-Hyun Eom +1
As an extension of our previous work on the holon pairing instability in the t-J Hamiltonian [Phys. Rev. B {\bf 66}, 054427 (2002)], we examine the orbital symmetries of holon pair…
Scaling behavior in the optical conductivity of the two dimensional systems of strongly correlated electrons based on the U(1) slave-boson approach to the t-J Hamiltonian
Jae-Hyeon Eom, Sung-Sik Lee, Ki-Seok Kim +1
The U(1) holon-pair boson theory of Lee and Salk(Phys. Rev. B 64, 052501 (2001)) is applied to investigate the quantum scaling behavior of optical conductivity in the two dimension…
On the origin of the hump structure in the in-plane optical conductivity of high Tc cuprates based on a SU(2) slave-boson theory
Jae-Hyeon Eom, Sung-Sik Lee, Ki-Seok Kim +1
An improved version of SU(2) slave-boson approach is applied to study the in-plane optical conductivity of the two dimensional systems of high Tc cuprates. We investigate the role…
Superconductivity in the presence of antiferromagnetism for high Tc cuprates
Ki-Seok Kim, Sung-Sik Lee, Jae-Hyeon Eom +1
Using the U(1) holon pair slave boson theory [Phys. Rev. B 64, 052501 2001)], we derive a low energy field theory of dealing with both d-wave superconductivity and antiferromagneti…