377 citations · 1.4k across the 29 of their papers we have counts for
30 papers
Plasmon Collapse in a Directional Strange Metal
Jiade Li, Peiyi He, Deng Hu +7
Strange metals are widespread in strongly correlated quantum matter and closely intertwined with high-temperature superconductivity and quantum criticality, yet their microscopic c…
Discovery of d-orbital order in Tb2CoAl4Ge2
Zhanyang Hao, Haohao Sheng, Wanru Ma +32
Orbital order describes a quantum state where occupied orbitals line up in a periodic pattern. While orbital physics plays a fundamental and universal role in strongly correlated e…
Dimensionality-Dependent Exciton Dispersion in a Single-Band Mott Insulator
Zhibin Su, Junjian Mi, Shaohua Yan +9
Excitonic band structure is critical for investigating exciton dynamics. Theoretically, quantum effects from exchange scattering between electron-hole pairs significantly modulate…
Plasmonic polaron in self-intercalated 1T-TiS2
Byoung Ki Choi, Woojin Choi, Zhiyu Tao +24
Electron-boson coupling is central to a comprehensive understanding of the diverse physical phenomena emerging from many-body interactions. Yet less attention has been paid to how…
Interlayer Hopping between Surface Mott Insulator and Bulk Band Insulator in layered 1T-TaS_{2}
Zijian Lin, Jie Li, Xiaodong Cao +7
In condensed matter physics, various mechanisms give rise to distinct insulating phases. The competition and interplay between these phases remain elusive, even for the seemingly m…
Inferior interfacial superconductivity in 1 UC FeSe/SrVO/SrTiO with screened interfacial electron-phonon coupling
Nan Guo, Xiaoyang Chen, Tianlun Yu +10
Monolayer FeSe/TiO and FeSe/FeO interfaces exhibit significant superconductivity enhancement compared to bulk FeSe, with interfacial electron-phonon coupling (EPC) playing…
Temperature-Dependent Collective Excitations in a Three-Dimensional Dirac System ZrTe
Zijian Lin, Cuixiang Wang, Daqiang Chen +4
Zirconium pentatelluride (ZrTe), a system with a Dirac linear band across the Fermi level and anomalous transport features, has attracted considerable research interest for i…
Atomic-scale observation of localized phonons at FeSe/SrTiO3 interface
Ruochen Sh, Qize Li, Xiaofeng Xu +11
In single unit-cell FeSe grown on SrTiO3, the superconductivity transition temperature features a significant enhancement. Local phonon modes at the interface associated with elect…
Tuning the Magnetism in Ultrathin CrxTey Films by Lattice Dimensionality
Guangyao Miao, Minghui Gu, Nuoyu Su +7
Two-dimensional (2D) magnetic transition metal compounds with atomic thickness exhibit intriguing physics in fundamental research and great potential for device applications. Under…
Dramatic Plasmon Response to the Charge-Density-Wave Gap Development in
Zijian Lin, Cuixiang Wang, A. Balassis +8
1T-TiSe2 is one of the most studied charge density wave (CDW) systems, not only because of its peculiar properties related to the CDW transition, but also due to its status as a pr…
Geometric Effect of High-Resolution Electron Energy Loss Spectroscopy on the Identification of Plasmons: An Example of Graphene
Jiade Li, Zijian Lin, Guangyao Miao +7
High-resolution electron energy loss spectroscopy (HREELS) is one of the most powerful methods to detect the dispersion of plasmons. However, we find that in the HREELS measurement…
Topologically Nontrivial Interband Plasmons in Type-II Weyl Semimetal MoTe
Xun Jia, Maoyuan Wang, Dayu Yan +7
In many realistic topological materials, more than one kind of fermions contribute to the electronic bands crossing the Fermi level, leading to various novel phenomena. Here, using…
Electron-phonon Coupling and Kohn Anomaly due to the Floating 2D Electronic Bands on the Surface of ZrSiS
Siwei Xue, Tiantian Zhang, Changjiang Yi +7
ZrSiS, an intriguing candidate of topological nodal line semimetals, was discovered to have exotic surface floating two-dimensional (2D) electrons [Phys. Rev. X 7, 041073 (2017)],…
Superconductivity of the FeSe/SrTiO3 Interface in the View of BCS-BEC Crossover
Shuyuan Zhang, Guangyao Miao, Jiaqi Guan +6
In paired Fermi systems, strong many-body effects exhibit in the crossover regime between the Bardeen-Cooper-Schrieffer (BCS) and the Bose-Einstein condensation (BEC) limits. The c…
Real-Space Investigation of the Charge Density Wave in VTe2 Monolayer with Rotational and Mirror Symmetries Broken
Guangyao Miao, Siwei Xue, Bo Li +5
Recently the charge density wave (CDW) in vanadium dichalcogenides have attracted increasing research interests, but a real-space investigation on the symmetry breaking of the CDW…
Flat AgTe Honeycomb Monolayer with Topologically Nontrivial States
Bing Liu, Jian Liu, Guangyao Miao +9
The intriguing properties, especially Dirac physics in graphene, have inspired the pursuit of two-dimensional materials in honeycomb structure. Here we achieved a monolayer transit…
Dynamic interfacial polaron enhanced superconductivity of FeSe/SrTiO3
Shuyuan Zhang, Tong Wei, Jiaqi Guan +8
The observation of substantially enhanced superconductivity of single-layer FeSe films on SrTiO3 has stimulated intensive research interest. At present, conclusive experimental dat…
Probing lattice vibration at surface and interface of SiO/Si with nanometer resolution
Yuehui Li, Mei Wu, Ning Li +6
Recent advances in monochromatic aberration corrected electron microscopy make it possible to detect the lattice vibration with both high-energy resolution and high spatial resolut…
Lattice Dynamics of Ultrathin FeSe Films on SrTiO3
Shuyuan Zhang, Jiaqi Guan, Yan Wang +14
Charge transfer and electron-phonon coupling (EPC) are proposed to be two important constituents associated with enhanced superconductivity in the single unit cell FeSe films on ox…
Phonon-enhanced superconductivity at the FeSe/SrTiO3 interface
Q. Song, T. L. Yu, X. Lou +9
The dream of room temperature superconductors has inspired intense research effort to find routes for enhancing the superconducting transition temperature (Tc). Therefore, single-l…
Superstructure evolution of tellurium atoms on Au(111) surface at different coverages
Jiaqi Guan, Xiaochun Huang, Shuyuan Zhang +4
We systematically investigated the superstructure evolution of Te atoms on Au(111) substrate at different coverages. As revealed by low temperature scanning tunneling microscopy an…
Anomalous Acoustic Plasmon Mode from Topologically Protected States
Xun Jia, Shuyuan Zhang, Raman Sankar +7
Plasmons, the collective excitations of electrons in the bulk or at the surface, play an important role in the properties of materials, and have generated the field of Plasmonics.…
Superconducting transition of FeSe/SrTiO3 induced by adsorption of semiconducting organic molecules
Jiaqi Guan, Jian Liu, Bing Liu +7
We prepared superconducting and non-superconducting FeSe films on SrTiO3(001) substrates (FeSe/STO) and investigated the superconducting transition induced by charge transfer betwe…
The Role of SrTiO3 Phonon Penetrating into thin FeSe Films in the Enhancement of Superconductivity
Shuyuan Zhang, Jiaqi Guan, Xun Jia +10
The significant role of interfacial coupling on the superconductivity enhancement in FeSe films on SrTiO3 has been widely recognized. But the explicit origination of this coupling…