30 citations · 63 across the 10 of their papers we have counts for
7 papers · 1 filter
Raman spectroscopy of van der Waals topological magnet GdGaI
Nan Jiang, Yijin Zhang, Yujie Xia +9
We report polarization-resolved Raman spectroscopy of a van der Waals compound GdGaI that is a candidate for excitonic insulators. By combining the symmetry analysis with density f…
Unusual Dual Flat Bands and two-dimensional Dirac-node Arc State in Kagome Metal Ni3In2S2
Bo Liang, Yichen Liu, Jie Pang +36
Kagome materials are at the frontier of condensed matter physics. An ideal kagome lattice features only one geometrically frustrated flat band spanning the entire momentum space an…
General ab initio framework for electronic-order-induced lattice-dynamics symmetry breaking
Shuai Zhang, Mengqi Wang, Pan Zhang +1
Conventional \textit{ab initio} approaches are unable to describe phonon time-reversal symmetry () breaking. Here, we develop an \textit{ab initio} framework, grounded…
Spin-Orbit Driven Topological Phases in Kagome Materials
Chi Wu, Tiantian Zhang
Kagome materials have garnered substantial attention owing to their diverse physical phenomena, yet canonical systems such as the AVSb family exhibit poor -type topo…
Comprehensive Study of Phonon Chirality under Symmetry Constraints
Shuai Zhang, Zhiheng Huang, Muchen Du +3
Phonons are quanta of lattice vibrations, and their modes (linear, circular, or stationary) are symmetry-determined. Circularly polarized phonons, possessing nonzero angular moment…
Magnetic order induced chiral phonons in a ferromagnetic Weyl semimetal
Mengqian Che, Jinxuan Liang, Yunpeng Cui +13
Chiral phonons are vibrational modes in a crystal that possess a well-defined handedness or chirality, typically found in materials that lack inversion symmetry. Here we report the…
Understanding chiral charge-density wave by frozen chiral phonon
Shuai Zhang, Kaifa Luo, Tiantian Zhang
Charge density wave (CDW) is discovered within a wide interval in solids, however, its microscopic nature is still not transparent in most realistic materials, and the recently stu…