10 papers
LDOS modulations in cuprate superconductors with competing AF order: the temperature effect
Hong-Yi Chen, C. S. Ting
Based upon a phenomenological model and using Bogoliubov-de Gennes equations, we found that near the optimal doping at low temperature (), only the pure d-wa…
Theory of the NMR relaxation rates in cuprate superconductors with field induced antiferromagnetic order
Yan Chen, Jian-Xin Zhu, C. S. Ting
Based on a model Hamiltonian with a d-wave pairing interaction and a competing antiferromagnetic interaction, we numerically study the site dependence of the nuclear spin resonance…
Energy-Dependent LDOS Modulation in Cuprate Superconductors
Degang Zhang, C. S. Ting
Motivated by the recent scanning tunneling microscopy (STM) experiment [J. E. Hoffman, {\it et al.}, Science {\bf 297}, 1148 (2002)], we investigate the energy-dependent modulation…
Superconducting Transition in Doped Antiferromagnet
Ming Shaw, Z. Y. Weng, C. S. Ting
We investigate the superconducting transition in a doped antiferromagnet. Based on the phase string framework of the t-J model, an effective model describing the phase-coherence tr…
High Angular Momentum Core States and Impurity Effects in the Mixed State of d-Wave Superconductors
Jian-Xin Zhu, C. S. Ting, A. V. Balatsky
The local quasiparticle spectra around the vortex core of a d-wave superconductor in the mixed state is studied by solving the lattice Bogoliubov-de Gennes equations self-consisten…
Spin-charge separation: From one hole to finite doping
Z. Y. Weng, D. N. Sheng, C. S. Ting
In the presence of nonlocal phase shift effects, a quasiparticle can remain topologically stable even in a spin-charge separation state due to the confinement effect introduced by…