8 citations · 23 across the 6 of their papers we have counts for
6 papers
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…
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…
Role of spinon and spinon singlet pair excitations on phase transitions in superconductors
Ki-Seok Kim, Jae-Hyeon Eom, Young-Il Seo +1
We examine the roles of massless Dirac spinon and spin singlet pair excitations on the phase transition in superconductors. Although the massless spinon excitations in the…
On the Origin of Peak-dip-hump Structure in the In-plane Optical Conductivity of the High Cuprates; Role of Antiferromagnetic Spin Fluctuations of Short Range Order
Sung-Sik Lee, Jae-Hyeon Eom, Ki-Seok Kim +1
An improved U(1) slave-boson approach is applied to study the optical conductivity of the two dimensional systems of antiferromagnetically correlated electrons over a wide range of…