481 citations · 3k across the 53 of their papers we have counts for
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Enhanced Population on Ionic Excited States by Synchronized Ionization and Multiphoton Resonance
Yewei Chen, Hongbin Lei, Quanjun Wang +12
We study population distributions and lasing actions of N_2^+ driven by femtosecond lasers with various wavelengths, and uncover an efficient ionic excitation mechanism induced by…
Observation of first-order quantum phase transitions and ferromagnetism in twisted double bilayer graphene
Le Liu, Xin Lu, Yanbang Chu +14
Twisted graphene multilayers are highly tunable flatband systems for developing new phases of matter. Thus far, while orbital ferromagnetism has been observed in valley polarized p…
Lattice distortions, moiré phonons, and relaxed electronic band structures in magic-angle twisted bilayer graphene
Bo Xie, Jianpeng Liu
In this work, we present a theoretical research on the lattice relaxations, phonon properties, and relaxed electronic structures in magic-angle twisted bilayer graphene (TBG). We c…
Theory for charge density wave and orbital-flux state in antiferromagnetic kagome metal FeGe
Hai-Yang Ma, Jia-Xin Yin, M. Zahid Hasan +1
In this work, we theoretically study the charge order and orbital magnetic properties of a new type of antiferromagnetic kagome metal FeGe. Based on first principles density functi…
Effective manipulation and realization of a colossal nonlinear Hall effect in an electric-field tunable moiré system
Jinrui Zhong, Junxi Duan, Shihao Zhang +7
The second-order nonlinear Hall effect illuminates a frequency-doubling transverse current emerging in quantum materials with broken inversion symmetry even when time-reversal symm…