62 citations · 268 across the 24 of their papers we have counts for
10 papers · 1 filter
Gapless Higgs Mode in the Fulde-Ferrell-Larkin-Ovchinnikov State of a Superconductor
Zhao Huang, C. S. Ting, Jian-Xin Zhu +1
The Higgs mode associated with amplitude fluctuations of the superconducting gap in uniform superconductors usually is heavy, which makes its excitation and detection difficult. We…
Cooper Pairing and Phase Coherence in Iron Superconductor Fe1+x(Te,Se)
J. -X. Yin, Zheng Wu, X. Huang +14
The Cooper pairing and phase coherence are two fundamental aspects of superconductivity. Due to breaking time reversal symmetry, magnetic impurities are detrimental to superconduct…
Evolution of quasiparticle states with and without a Zn-impurity in doped 122 iron pnictides
Lihua Pan, Jian Li, Yuan-Yen Tai +3
Based on a minimal two-orbital model [Tai {\it et al.}, Europhys. Lett. \textbf{103}, 67001 (2013)], which captures the canonical electron-hole-doping phase diagram of the iron-pni…
Fermi surface evolution and checker-board block-spin antiferromagnetism in FeSe
Yuan-Yen Tai, Jian-Xin Zhu, Matthias J. Graf +1
We develop an effective multiorbital mean-field t-J Hamiltonian with realistic tight-binding and exchange parameters to describe the electronic and magnetic structures of iron-sele…
Impurity-induced quasiparticle interference in the parent compounds of iron-pnictide superconductors
Huaixiang Huang, Yi Gao, Degang Zhang +1
The impurity-induced quasiparticle interference(QPI) in the parent compounds of iron-pnictide superconductors is investigated based on a phenomenological two-orbital four-band mode…
Spin dynamics in electron-doped pnictide superconductors
Yi Gao, Tao Zhou, C. S. Ting +1
The doping dependence of spin excitations in Ba(FeCo)As is studied based on a two-orbital model under RPA approximation. The interplay between the spin-de…
Hall Conductivity in a Spin-Triplet Superconductor
Wonkee Kim, F. Marsiglio, C. S. Ting
We calculate the Hall conductivity for a spin-triplet superconductor, using a generalized pairing symmetry dependent on an arbitrary phase, $\vphi$. A promising candidate for such…
Numerical Study of Transition to Stripe Phases in High Temperature Superconductors Under a Strong Magnetic Field
Yan Chen, H. Y. Chen, C. S. Ting
The nature of spin density wave (SDW) and charge density wave (CDW) in the mixed state of high T_c superconductors (HTS) is investigated by using the self-consistent Bogoliubov-de…
Superconductivity in Ferromagnetic RuSr_2GdCu_2O_8
Jian-Xin Zhu, C. S. Ting, C. W. Chu
The phase diagram of temperature versus exchange field is obtained within a BCS model for d-wave superconductivity in CuO_2 layers which is coupled to ferromagnetic RuO_2 layers in…
Competing effects of mass anisotropy and spin Zeeman coupling on the upper critical field of a mixed - and s-wave superconductor
Wonkee Kim, Jian-Xin Zhu, C. S. Ting
Based on the linearized Eilenberger equations, the upper critical field of mixed d- and s-wave superconductors has been microscopically studied with an emphasis on the c…