464 citations · 3.5k across the 40 of their papers we have counts for
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Nodeless -Wave Superconducting Phases in Cuprates with BaCuO-Type Structure
Zhi-Qiang Gao, Kai-Wei Sun, Fa Wang
In this work zero-temperature phase diagrams of cuprates with BaCuO-type CuO chain structure is investigated. The projective symmetry group analysis is employed in the stro…
Unconventional Surface Critical Behaviors Induced by Quantum Phase Transition from Two-Dimensional Affleck-Kennedy-Lieb-Tasaki Phase to Néel Order
Long Zhang, Fa Wang
A symmetry-protected topological phase has nontrivial surface states in the presence of certain symmetries, which can either be gapless or be degenerate. In this work, we study the…
Compass Impurity Model of Tb Substitution in Sr2IrO4
Long Zhang, Fa Wang, Dung-Hai Lee
We show that upon Tb substitution the interaction between the magnetic moments on the impurity Tb ion and its surrounding Ir ions is described by a "compass" model, i…
Topological versus Landau-like phase transitions
Lokman Tsui, Fa Wang, Dung-Hai Lee
The study of continuous phase transitions triggered by spontaneous symmetry breaking has brought new concepts that revolutionized the way we understand many-body systems. Recently,…
Quantum oscillation in narrow-gap topological insulators
Long Zhang, Xue-Yang Song, Fa Wang
The canonical understanding of quantum oscillation in metals is challenged by the observation of de Haas-van Alphen effect in an insulator, SmB [Tan \emph{et al}, Science {\b…
Schwinger boson spin liquid states on square lattice
Xu Yang, Fa Wang
We study possible spin liquids on square lattice that respect all lattice symmetries and time-reversal symmetry within the framework of Schwinger boson (mean-field) theory. Such sp…