175 citations · 1.5k across the 32 of their papers we have counts for
31 papers
Electronic correlations and partial gap in the bilayer nickelate LaNiO
Zhe Liu, Mengwu Huo, Jie Li +8
The discovery of superconductivity with a critical temperature of about 80~K in LaNiO single crystals under pressure has received enormous attention. LaNi$_…
Pressure-induced color change arising from transformation between intra- and inter-band transitions in LuHN
Zhe Liu, Yingjie Zhang, Shenyang Huang +8
The pressure-induced color change in the nitrogen-doped lutetium hydride has triggered extensive discussions about the underlying physics. Here, we study the optical response of Lu…
Effects of Nb Doping on the Charge-Density Wave and Electronic Correlations in the Kagome Metal Cs(VNb)Sb
Xiaoxiang Zhou, Yongkai Li, Zhe Liu +5
The transport and optical properties of the Nb-doped Cs(VNb)Sb with x = 0.03 and 0.07 have been investigated and compared with those of the undoped CsV$_{…
Tunable optical topological transitions of plasmon polaritons in WTe2 van der Waals films
Yuangang Xie, Chong Wang, Fucong Fei +9
Naturally existing in-plane hyperbolic polaritons and the associated optical topological transitions, which avoid the nano-structuring to achieve hyperbolicity, can outperform thei…
Electronic Correlations and Evolution of the Charge-Density Wave in the Kagome Metals VSb ( = K, Rb, Cs)
Xiaoxiang Zhou, Yongkai Li, Xinwei Fan +7
The kagome metals VSb ( = K, Rb, Cs) have attracted enormous interest as they exhibit intertwined charge-density wave (CDW) and superconductivity. The alkali-meta…
Observation of anomalous amplitude modes in the kagome metal CsVSb
Gan Liu, Xinran Ma, Kuanyu He +12
The charge-density wave (CDW) phase is often accompanied by the condensation of a soft acoustic phonon mode, giving rise to lattice distortion and charge density modulation. This p…
Pseudogap and Strong Pairing Induced by Incipient and Shallow Bands in the Quasi-Two-Dimensional KCaFeAsF
Jiahao Hao, Wenshan Hong, Xiaoxiang Zhou +6
The optical properties of KCaFeAsF (K12442, ~K) and KCa(FeNi)AsF (Ni-K12442, ~K) have been e…
Origin of the Charge Density Wave in the Kagome Metal CsVSb as Revealed by Optical Spectroscopy
Xiaoxiang Zhou, Yongkai Li, Xinwei Fan +5
We report on a detailed study of the optical properties of CsVSb at a large number of temperatures above and below the charge-density-wave (CDW) transition. Above the C…
Van Hove Singularity Arising from Mexican-Hat-Shaped Inverted Bands in the Topological Insulator Sn-doped BiSbTeS
Wenchao Jiang, Bowen Li, Xiaomeng Wang +9
The optical properties of Sn-doped BiSbTeS, the most bulk-insulating topological insulator thus far, have been examined at different temperatures over a broad…
Charge-stripe Fluctuations in NdNiO as Evidenced by Optical Spectroscopy
Jiahao Hao, Xinwei Fan, Qing Li +6
We present an investigation into the optical properties of NdNiO at different temperatures from 300 down to 5~K over a broad frequency range. The optical conducti…
Infrared study of the multiband low-energy excitations of the topological antiferromagnet MnBiTe
Bing Xu, Y. Zhang, E. H. Alizade +14
With infrared spectroscopy we studied the bulk electronic properties of the topological antiferromagnet MnBiTe with . With the support of band str…
Photocurrent-driven transient symmetry breaking in the Weyl semimetal TaAs
N Sirica, P. P. Orth, M. S. Scheurer +23
Symmetry plays a central role in conventional and topological phases of matter, making the ability to optically drive symmetry change a critical step in developing future technolog…
Temperature-induced band shift in ferromagnetic Weyl semimetal Co3Sn2S2
Run Yang, Tan Zhang, Liqin Zhou +4
The discovery of nonmagnetic Weyl semimetals (WSMs) in TaAs compounds has triggered lots of efforts in finding its magnetic counterpart. While the direct observation of the Weyl no…
Observation of topological nodal-line semimetal in YbMnSb2 through optical spectroscopy
Ziyang Qiu, Congcong Le, Zhiyu Liao +5
The optical properties of YbMnSb2 have been measured in a broad frequency range from room temperature down to 7 K. With decreasing temperature, a flat region develops in the optica…
Tracking ultrafast photocurrents in the Weyl semimetal TaAs using THz emission spectroscopy
N. Sirica, R. I. Tobey, L. X. Zhao +14
We investigate polarization-dependent ultrafast photocurrents in the Weyl semimetal TaAs using terahertz (THz) emission spectroscopy. Our results reveal that highly directional, tr…
Scaling of the Fano effect of the in-plane Fe-As phonon and the superconducting critical temperature in BaKFeAs
B. Xu, E. Cappelluti, L. Benfatto +11
By means of infrared spectroscopy we determine the temperature-doping phase diagram of the Fano effect for the in-plane Fe-As stretching mode in BaKFeAs.…
Infrared spectroscopic studies of the topological properties in CaMnSb2
Ziyang Qiu, Congcong Le, Yaomin Dai +6
We present temperature-dependent infrared spectroscopic studies of CaMnSb2, a proposed threedimensional topological material. The low plasma edge in the reflectivity spectrum and s…
Skyrmions around Kerr black holes and spinning BHs with Skyrme hair
C. Herdeiro, I. Perapechka, E. Radu +1
We study solutions of the Einstein-Skyrme model. Firstly we consider test field Skyrmions on the Kerr background. These configurations -- hereafter dubbed Skerrmions -- can be in e…
Vibrational anomalies in AFeAs (ACa, Sr, and Ba) single crystals
C. C. Homes, Y. M. Dai, Ana Akrap +2
The detailed behavior of the in-plane infrared-active vibrational modes has been determined in AFeAs (ACa, Sr, and Ba) above and below the structural and magnetic tr…
Observation of an Emergent Coherent State in the Iron-Based Superconductor KFeAs
Run Yang, Zhiping Yin, Yilin Wang +5
The optical properties of KFeAs have been measured for light polarized in the a-b planes over a wide temperature and frequency range. Below K, where this…
Conducting interface in oxide homojunction: understanding of superior properties in black TiO2
Xujie Lu, Aiping Chen, Yongkang Luo +12
Black TiO2 nanoparticles with a crystalline-core and amorphous-shell structure exhibit superior optoelectronic properties in comparison with pristine TiO2. The fundamental mechanis…
Temperature-tunable Fano resonance induced by strong coupling between Weyl fermions and phonons in TaAs
B. Xu, Y. M. Dai, L. X. Zhao +12
Strong coupling between discrete phonon and continuous electron-hole pair excitations can give rise to a pronounced asymmetry in the phonon line shape, known as the Fano resonance.…
Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses
P. Bowlan, S. A. Trugman, X. Wang +6
We investigate spin dynamics in the antiferromagnetic (AFM) multiferroic TbMnO3 using optical- pump, terahertz (THz)-probe spectroscopy. Photoexcitation results in a broadband THz…
Heavy fermion behavior in the quasi-one-dimensional Kondo lattice CeCo2Ga8
Le Wang, Zhaoming Fu, Jianping Sun +13
Dimensionality plays an essential role in determining the anomalous non-Fermi liquid properties in heavy fermion systems. So far most heavy fermion compounds are quasi-two-dimensio…