133 citations · 404 across the 13 of their papers we have counts for
13 papers
Chiral Phonons in Moiré Superlattices
Nishchay Suri, Chong Wang, Yinhan Zhang +1
We discover chiral phonons at the lowest-energy bands in moiré superlattices. The moiré chiral phonons we uncover are the collective excitations of the stacking domains. Their orig…
Thermal Hall Effect of Chiral Spin Fluctuations
Caitlin Carnahan, Yinhan Zhang, Di Xiao
Using a two-dimensional square lattice Heisenberg model with a Rashba-type Dzyaloshinskii-Moriya interaction, we demonstrate that chiral spin fluctuations can give rise to a therma…
Thermodynamics of Energy Magnetization
Yinhan Zhang, Yang Gao, Di Xiao
We construct the thermodynamics of energy magnetization in the presence of gravitomagnetic field. We show that the free energy must be modified to account for the modification of t…
Tunable Layer Circular Photogalvanic Effect in Twisted Bilayers
Yang Gao, Yinhan Zhang, Di Xiao
We develop a general theory of the layer circular photogalvanic effect (LCPGE) in quasi two-dimensional chiral bilayers, which refers to the appearance of a polarization-dependent,…
Topological charge pumping in twisted bilayer graphene
Yinhan Zhang, Yang Gao, Di Xiao
We show that a sliding motion between the two layers of a \moire superlattice induces an electric current and realizes a two-dimensional version of the topological Thouless pump wh…
Density Functional Theory of Composite Fermions
Yinhan Zhang, Junren Shi
We construct a density functional theory for two-dimension electron (hole) gases subjected to both strong magnetic fields and external potentials. In particular, we are focused on…
Thermal Hall Effect Induced by Magnon-Phonon Interactions
Xiaoou Zhang, Yinhan Zhang, Satoshi Okamoto +1
We propose a new mechanism for the thermal Hall effect in exchange spin-wave systems, which is induced by the magnon-phonon interaction. Using symmetry arguments, we first show tha…
Spin Nernst effect in the Paramagnetic Regime of An Antiferromagnetic Insulator
Yinhan Zhang, Satoshi Okamoto, Di Xiao
We theoretically investigate a pure spin Hall current driven by a longitudinal temperature gradient, i.e., the spin Nernst effect (SNE), in a paramagnetic state of a collinear anti…
Evolution of the optimal trial wave function with interactions in fractional Chern insulators
Yumin Luan, Yinhan Zhang, Junren Shi
We show that the optimal trial wave function of a fractional Chern insulator depends on the form of its electron-electron interaction. The gauge of single particle Bloch bases for…
Symmetry analysis of transport properties in helical superconductor junctions
Qiang Cheng, Yinhan Zhang, Kunhua Zhang +2
We study discrete symmetries satisfied by helical -wave superconductors with d-vectors or and transformations broug…
Tunable ground states in helical -wave Josephson junctions
Qiang Cheng, Kunhua Zhang, Dongyang Yu +3
We study new types of Josephson junctions composed of helical -wave superconductors with and -pairing symmetries usi…
Mapping a fractional quantum Hall state to a fractional Chern insulator
Yinhan Zhang, Junren Shi
We establish a variational principle for properly mapping a fractional quantum Hall (FQH) state to a fractional Chern insulator (FCI). We find that the mapping has a gauge freedom…
Quantum Anomalous Hall Insulator of Composite Fermions
Yinhan Zhang, Junren Shi
We show that a weak hexagonal periodic potential could transform a two-dimensional electron gas with an even-denominator magnetic filling factor to a quantum anomalous Hall insulat…