papers
Publications (3)
cond-mat.mtrl-sci2022
Direct observation of local antiferroelectricity induced phonon softening at a SrTiO3 defect
Bo Han, Ruochen Shi, Huining Peng +7
Defects in oxides usually exhibit exotic properties that may be associated with the local lattice dynamics. Here, at atomic spatial resolution, we directly measure phonon modes of…
cond-mat.mtrl-sci2019
Evidence of charge density wave with anisotropic gap in monolayer VTe film
Yuan Wang, Junhai Ren, Jiaheng Li +5
We report experimental evidence of charge density wave (CDW) transition in monolayer 1T-VTe film. 44 reconstruction peaks are observed by low energy electron diffractio…
cond-mat.mes-hall2022
Ultrafast coherent interlayer phonon dynamics in atomically thin layers of MnBi2Te4
F. Michael Bartram, Yu-Chen Leng, Yongchao Wang +10
The atomically thin MnBi2Te4 crystal is a novel magnetic topological insulator, exhibiting exotic quantum physics. Here we report a systematic investigation of ultrafast carrier dy…