88 citations · 104 across the 7 of their papers we have counts for
7 papers
Nonadiabatic Theory of Phonon Magnetic Moments in Insulators and Metals
Haoran Chen, Wenqin Chen, Kaijie Yang +2
We develop a nonadiabatic theory of phonon magnetic moments applicable to both insulators and metals. By relating the phonon magnetic moment to the force-velocity response of ions…
Quantum Geometric Quadrupole of Cooper Pairs
Wenqin Chen, Kaijie Yang, Ting Cao +3
The size of Cooper pairs defines a fundamental length scale of superconductivity, conventionally set by band dispersion and the superconducting gap. This picture breaks down in fla…
Geometric Origin of Phonon Magnetic Moment in Dirac Materials
Wenqin Chen, Xiao-Wei Zhang, Ting Cao +2
We develop a theory for the phonon magnetic moment in doped Dirac materials, treating phonons as emergent gauge and gravitational fields coupled to Dirac fermions in curved space.…
Adiabatic Pumping of Orbital Magnetization by Spin Precession
Yafei Ren, Wenqin Chen, Chong Wang +2
We propose adiabatic pumping of orbital magnetization driven by coherent spin precession, facilitating the rectification of this precession. The orbital magnetization originates fr…
Gauge theory of giant phonon magnetic moment in doped Dirac semimetals
Wenqin Chen, Xiao-Wei Zhang, Ying Su +3
We present a quantum theory of phonon magnetic moment in doped Dirac semimetals. Our theory is based on an emergent gauge field approach to the electron-phonon coupling, applicable…
Spectroscopic origin of giant anomalous Hall effect in an interwoven magnetic kagome metal
Erjian Cheng, Kaipu Wang, Yiqing Hao +20
The discovery of a giant anomalous Hall effect (AHE) and its novel mechanism holds significant promise for advancing both fundamental research and practical applications. Magnetic…
Observation of three-state nematicity in the triangular lattice antiferromagnet Fe NbS
Arielle Little, Changmin Lee, Caolan John +9
Nematic order is the breaking of rotational symmetry in the presence of translational invariance. While originally defined in the context of liquid crystals, the concept of nematic…