85 citations · 221 across the 24 of their papers we have counts for
24 papers
Topological pair density waves in kagome superconductors
Jia-Xin Yin, Xianxin Wu, Mark H. Fischer +3
The pair density wave (PDW) is an unconventional superconducting state exhibiting periodic pairing modulations due to pairing with finite momentum Q. In two dimensions, multiple Q…
One-Step Epitaxial Access to Rhombohedral Graphene Flat-Band States on Step-Bunched SiC
Hao Zhong, Xingzhe Wang, Hanbin Deng +15
Rhombohedral graphene multilayers provide a moiré-free platform for correlated and topological flat-band physics, but direct, transfer-free epitaxial access to thickness-tunable mu…
Discovery of a symmetry-driven electronic cascade in a -wave altermagnet
Zhouyi Yin, Zheng Shi, Shuxuan Zhang +9
Altermagnets host magnetic compensation together with non-relativistic spin-split bands, a coexistence enabled by crystal symmetry. Yet whether and how crystal symmetry organizes c…
Probing Quantum Geometric Phases via Scanning Tunneling Microscopy
Chao Yan, Mu-Wei Gao, Yue Zhao +1
The quantum geometric phase intrinsically dictates the geometry, topology, and many-body correlations of electronic wave functions. While quantum geometric phases are conventionall…
Josephson spectroscopy study of kagome superconductors toward the deep point-contact regime
Hailang Qin, Xiao-Yu Yan, Hanbin Deng +4
Josephson scanning tunneling microscopy (JSTM) has emerged as an important technique for probing the superconducting order parameter at the atomic scale. However, the Josephson cur…
Many-body electronic structure in pyrochlore superconductor CsBi2 and spin liquid Pr2Ir2O7
Wei Song, Guowei Liu, Hanbin Deng +26
The pyrochlore lattice materials can exhibit geometrical frustration, while the related many-body electronic states remain elusive. In this work, we performed scanning tunneling mi…
Ultrafast μeV-Precision Bandgap Engineering in Low-Dimensional Topological Insulators
Peng Tan, Yuantao Chen, Yuqi Zhang +14
Precise and ultrafast control of electronic band structures is a central challenge for advancing quantum functional materials and devices. Conventional approaches--such as chemical…
Switchable chiral 2x2 pair density wave in pure CsV3Sb5
Wei Song, Xiao-Yu Yan, Xin Yu +9
We investigate electron pairing in a super clean kagome superconductor CsV3Sb5 with a residual resistivity ratio (RRR) of 290. By using the dilution-refrigerator-based scanning tun…
Phase-sensitive evidence for pair density waves in a kagome superconductor
Xiao-Yu Yan, Guowei Liu, Hanbin Deng +22
Pair density wave (PDW) exhibits periodic amplitude and sign modulations of the superconducting order parameter. Such a pairing state has long been proposed to be highly sensitive…
Lattice dynamics and spin-phonon coupling in the kagome spin ice HoAgGe
Shangfei Wu, Lingxiao Zhao, Wei Song +5
We employ polarization-resolved Raman spectroscopy and first-principles phonon calculations to study the lattice dynamics and spin-phonon coupling in the kagome spin ice compound H…
Interlayer Charge-density-wave Vector Phase Induced Structural Chirality
Sen Shao, Wei-Chi Chiu, Tao Hou +21
Chiral charge density waves (CDWs) have attracted intense interest due to their exotic quantum properties, yet the microscopic origin of structural chirality emerging from correlat…
Photoemission Insights to Electronic Orders in Kagome Superconductor AV3Sb5
Yigui Zhong, Jia-Xin Yin, Kosuke Nakayama
Kagome superconductors AV3Sb5 (A = K, Rb, and Cs) have attracted considerable attention due to their intriguing combination of unique electron correlations and nontrivial band topo…
Chiral pair density waves with residual Fermi arcs in RbV3Sb5
Xiao-Yu Yan, Hanbin Deng, Tianyu Yang +8
The chiral 2 by 2 charge order has been reported and confirmed in the kagome superconductor RbV3Sb5, while its interplay with superconductivity remains elusive owing to its lowest…
Evidence chain for time-reversal symmetry-breaking kagome superconductivity
Hanbin Deng, Guowei Liu, Z. Guguchia +25
Superconductivity and magnetism are antagonistic quantum matter, while their intertwining has long been considered in frustrated-lattice systems1-3. In this work, we utilize scanni…
Chiral kagome superconductivity modulations with residual Fermi arcs in KV3Sb5 and CsV3Sb5
Hanbin Deng, Hailang Qin, Guowei Liu +26
Superconductivity involving finite momentum pairing can lead to spatial gap and pair density modulations, as well as Bogoliubov Fermi states within the superconducting gap. However…
Superconducting gap modulations: are they from pair density waves or pair-breaking scattering?
Jia-Xin Yin, Qianghua Wang
In his seminal work published in Acta Physica Sinica in 1965, Yu Lu pointed out that the superconducting gap exhibits weak modulations near the pair-breaking magnetic impurity in a…
Self-consistent theory of pair density waves in kagome superconductors
Meng Yao, Yan Wang, Da Wang +2
Pair density wave (PDW) is an intriguing quantum matter proposed in the frontier of condensed matter physics. However, the existence of PDW in microscopic models has been rare. In…
Search for orbital magnetism in the kagome superconductor using neutron diffraction
William Liège, Yaofeng Xie, Dalila Bounoua +7
As many Kagome metals, the topological superconductor AVSb with (A = K,Rb,Cs) hosts a charge density wave . A related chiral flux phase that breaks the time-reversal symmet…
Effects of background rotation and anisotropy in the holographic description of type-II superconductors
Jhony A. Herrera-Mendoza, Alfredo Herrera-Aguilar, Daniel F. Higuita-Borja +3
The present work concerns the detailed construction of a holographic model for a type-II s-wave superconductor defined on a 5-dimensional anisotropic rotating black hole. We examin…
Observation of Fermi-surface-dependent anisotropic Cooper pairing in kagome superconductor CsV3Sb5
Akifumi Mine, Yigui Zhong, Jinjin Liu +9
In the recently discovered kagome superconductor AV3Sb5 (A = K, Rb, and Cs), superconductivity is intertwined with an unconventional charge density wave order. The pairing symmetry…
Charge density wave with suppressed long-range structural modulation in canted antiferromagnetic kagome FeGe
Chenfei Shi, Wenchang Hou, Hanbin Deng +30
Kagome lattice can host abundant exotic quantum states such as superconductivity and charge density wave (CDW). Recently, successive orders of A-type antiferromagnetism (AFM), CDW…
Conventional Superconductivity in the Doped Kagome Superconductor Cs(V0.86Ta0.14)3Sb5 from Vortex Lattice Studies
Yaofeng Xie, Nathan Chalus, Zhiwei Wang +8
A hallmark of unconventional superconductors is their complex electronic phase diagrams where "intertwined orders" of charge-spin-lattice degrees of freedom compete and coexist as…
Magnetic-coupled electronic landscape in bilayer-distorted titanium-based kagome metals
Yong Hu, Congcong Le, Long Chen +10
Quantum materials whose atoms are arranged on a lattice of corner-sharing triangles, , the kagome lattice, have recently emerged as a captivating platform for invest…
Orbital selectivity of layer resolved tunneling on iron superconductor Ba0.6K0.4Fe2As2
J. -X. Yin, X. -X. Wu, Jian Li +15
We use scanning tunneling microscopy/spectroscopy (STM/S) to elucidate the Cooper pairing of the iron pnictide superconductor Ba0.6K0.4Fe2As2. By a cold-cleaving technique, we obta…