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Article
Chemistry, Physical
Lingyong Zeng et al.
Summary: This study demonstrates the design and synthesis of the Cu0.5Ir1-xZrxTe2 (0 <= x <= 0.15) system by substituting Ir with Zr to create negative chemical pressure. Experimental evidence shows that subtle Zr substitution for Ir can immediately suppress the charge density wave (CDW)-like order and result in the observation of a classical dome-shape temperature dependence of superconductivity. However, high concentrations of Zr can lead to the reappearance of CDW orders.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Multidisciplinary Sciences
Linpeng Nie et al.
Summary: This study presents evidence for the existence of electronic nematicity in CsV3Sb5, providing new insights into the pairing mechanism in unconventional superconductors.
Article
Multidisciplinary Sciences
Yong Hu et al.
Summary: This study reports the spectroscopic evidence of topology and correlation effects in the kagome superconductor CsV3Sb5. The presence of topologically nontrivial surface states and flat bands suggests the potential for realizing Majorana zero modes and anomalous superconducting states in kagome lattices. CsV3Sb5 is established as a unique platform for exploring the interactions between charge order, topology, correlation effects, and superconductivity.
Article
Chemistry, Physical
Lingyong Zeng et al.
Summary: CuIr2-xCrxTe4 (0 <= x <= 2) chalcogenides exhibit two structural types and three different regions, with Cr substitution for Ir resulting in collapsed CDW, dome-shaped SC formation, and emergence of magnetism. Cr doping slightly increases the superconducting critical temperature, while the ferromagnetic Curie temperature varies in different ranges.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Physics, Condensed Matter
Mebrouka Boubeche et al.
Summary: We investigate the evolution of structural and physical properties of the CuIr2Te4-x S x polycrystalline system, where S is gradually substituted for Te. The results show that small-concentration S substitution can suppress and reappear the charge density wave transition, as well as affect the superconducting critical temperature and metal insulator transition temperature. The electronic phase diagram of this system displays a rich variety of phases, including the suppression and re-emergence of CDW and the MIT states.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Materials Science, Multidisciplinary
Yuzki M. Oey et al.
Summary: The unconventional coupling between CDW and superconducting states in CsV3Sb5-xSnx materials was studied. With hole doping, superconductivity shows a nonmonotonic evolution, while the CDW order is rapidly suppressed.
PHYSICAL REVIEW MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jing Guo et al.
Summary: Pressure-induced three superconducting transitions are observed in TaTe2, driven respectively by the suppression of CDW state, the change of β angle in the M phase, and the transition of M-to-HP phase.
PHYSICAL REVIEW MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yongkai Li et al.
Summary: The coexistence of superconductivity and charge-density wave (CDW) order in kagome systems has sparked great interest. In this study, Cs(V1-xNbx)3Sb5 samples with systematic Nb doping were extensively investigated, and it was found that Nb doping leads to the suppression of CDW order and the promotion of superconductivity. Additionally, the anomalous Hall effect (AHE) and magnetoresistance (MR) were significantly weakened along with the CDW order. The effects were interpreted through density-functional calculations and antiphase shifts of the Fermi energy near saddle points and a Fermi surface reorganization. The results uncovered a delicate and unusual competition between CDW order and superconductivity.
Article
Multidisciplinary Sciences
Hui Chen et al.
Summary: In this study, unconventional superconductivity and a pair density wave (PDW) were observed in CsV3Sb5, a vanadium-based kagome metal. The material exhibits a V-shaped pairing gap and a 3Q PDW, along with other unique characteristics such as strong-coupling superconductivity and charge order. These findings provide insights into the correlated electronic states and superconductivity in vanadium-based kagome metals.
Article
Physics, Multidisciplinary
Yang Fu et al.
Summary: The transport properties of kagome superconductor CsV3Sb5 were studied at magnetic fields up to 32 T, revealing Shubnikov-de Haas oscillations and cyclotron masses at different frequencies. The close Berry phases of certain frequencies provide evidence of the nontrivial topological band structures of CsV3Sb5, confirming the Fermi surfaces near the Brillouin zone boundary and a stable structure at the charge density wave state. These results shed light on the nature of correlated topological physics in kagome material CsV3Sb5.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Yanpeng Song et al.
Summary: This study explores the effects of hole doping on superconductivity and charge density wave (CDW) order in layered kagome metals AV3Sb5. The enhancement of superconducting properties and suppression of CDW were observed in thin flakes compared to bulk samples, indicating the crucial role of van Hove singularities in promoting correlated quantum states. The findings suggest a novel approach to tune carrier concentration in CsV3Sb5, providing a tunable 2D platform for further exploration of topology and correlation in kagome lattices.
PHYSICAL REVIEW LETTERS
(2021)
Article
Multidisciplinary Sciences
Xilin Feng et al.
Summary: The study identifies a chiral flux phase in the quasi-2D Kagome superconductor AV(3)Sb(5), which has the lowest energy and exhibits 2 x 2 charge orders observed experimentally. This phase breaks time-reversal symmetry and displays anomalous Hall effect.
Article
Materials Science, Multidisciplinary
C. Mielke et al.
Summary: LaRu3Si2, a kagome superconductor with a critical temperature around 7K, exhibits nodeless moderate coupling superconductivity with a single s-wave gap that is robust against hydrostatic pressure up to 2 GPa. The calculated normal state band structure features a kagome flat band, Dirac and van Hove points near the Fermi level formed by Ru-dz(2) orbitals. Additionally, electron-phonon coupling alone cannot reproduce a significant portion of the critical temperature, suggesting other factors enhance Tc in LaRu3Si2.
PHYSICAL REVIEW MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Qi Wang et al.
Summary: The research on CsV3Sb5 single crystals revealed a competition between CDW and superconductivity under various pressures, with pressure significantly enhancing the superconducting transition temperature and decreasing the CDW state. The results demonstrate that CsV3Sb5 provides a new platform for exploring the interplay between superconductivity and CDW in topological kagome metals.
ADVANCED MATERIALS
(2021)
Article
Physics, Multidisciplinary
Chao Mu et al.
Summary: CsV3Sb5 exhibits s-wave superconducting behavior at low temperatures, with superconductivity emerging in the charge order state. Split V-51 NMR spectra and Sb-121/123 NQR spectra were observed after the charge density wave, indicating a commensurate CDW state.
CHINESE PHYSICS LETTERS
(2021)
Article
Physics, Multidisciplinary
K. Y. Chen et al.
Summary: The study reveals that the CDW transition in CsV3Sb5 decreases with pressure, with an unusual M-shaped double dome in the T-c(P) curve showing enhancement up to 8 K at 2 GPa. This indicates a strong competition between CDW-like order and SC, particularly in the intermediate pressure range of P-c1 <= P <= P-c2.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Weiyin Duan et al.
Summary: CsV3Sb5 exhibits nodeless superconductivity consistent with two-gap s-wave superconductivity description, and is confirmed under multiple Fermi surfaces.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2021)
Article
Multidisciplinary Sciences
F. H. Yu et al.
Summary: The competition between superconductivity and CDW state in the pressurized kagome lattice of CsV3Sb5 displays complex effects, with unexpected double-peak behavior observed under high pressure conditions.
NATURE COMMUNICATIONS
(2021)
Article
Physics, Multidisciplinary
Zuowei Liang et al.
Summary: Transition-metal-based kagome metals offer a versatile platform for correlated topological phases with various electronic instabilities. The study of a newly discovered Z(2) topological kagome metal CsV3Sb5 with a superconducting ground state reveals charge modulation associated with the opening of an energy gap near the Fermi level. The findings suggest CsV3Sb5 as a promising candidate for realizing exotic excitations at the intersection of nontrivial lattice geometry, topology, and multiple electronic orders.
Article
Materials Science, Multidisciplinary
Harrison LaBollita et al.
Summary: The electronic structure of the new family of kagome metals AV(3)Sb(5) can be modified by pressure and hole doping, with pressure shifting saddle points away from the Fermi level and doping bringing them closer. This demonstrates how pressure and doping can be used to tune Fermi surface instabilities and associated orders.
Article
Materials Science, Multidisciplinary
Tiema Qian et al.
Summary: This paper investigates the effect of uniaxial strains along the crystalline a axis on the kagome superconductor CsV3Sb5, revealing a strong competition between the superconducting transition temperature Tc and the charge-density wave transition temperature T-CDW. The study shows that Tc monotonically increases with increasing strain while T-CDW decreases, highlighting the importance of the c-axis lattice parameter as a tuning knob for the phase diagram of CsV3Sb5.
Article
Materials Science, Multidisciplinary
Huanlong Liu et al.
Summary: The study systematically explored the impact of lithium intercalation on the charge density waves (CDWs) and superconductivity in 2H-TaS2, showing that lithium intercalation weakens the CDW effect and indirectly enhances superconductivity. In the CDW phase, lithium-intercalated LixTaS2 predominantly exhibits hole-type charge carriers.
Article
Materials Science, Multidisciplinary
F. H. Yu et al.
Summary: A giant anomalous Hall effect (AHE) has been observed in kagome superconductor CsV3Sb5, with a conductivity reaching up to 2.1 x 10(4)Ω⁻¹ cm⁻¹, larger than most ferromagnetic metals. The emergence of AHE is strongly correlated with the higher-temperature charge-density-wave (CDW) transition, and AHE disappears when the CDW transition is completely suppressed under high pressure.
Article
Materials Science, Multidisciplinary
Zhuyi Zhang et al.
Summary: This study reports pressure-induced reemergence of superconductivity in CsV3Sb5, where the superconducting critical temperature initially increases and then decreases with pressure, forming a dome-shaped superconducting phase diagram. A new superconducting state emerges with further compression above 16.5 GPa, with T-c reaching a second maximum around 5.0 K and remaining stable up to 47.9 GPa. The reemergence of superconductivity in V-based superconductor is suggested to be attributed to a pressure-induced Lifshitz transition, supported by high-pressure synchrotron x-ray-diffraction measurements showing the stability of the pristine hexagonal phase up to 43.1 GPa.
Article
Chemistry, Physical
Mingu Kang et al.
Article
Multidisciplinary Sciences
Mingu Kang et al.
NATURE COMMUNICATIONS
(2020)
Article
Multidisciplinary Sciences
Zhonghao Liu et al.
NATURE COMMUNICATIONS
(2020)
Article
Physics, Multidisciplinary
Brenden R. Ortiz et al.
PHYSICAL REVIEW LETTERS
(2020)
Article
Multidisciplinary Sciences
Noam Morali et al.
Article
Materials Science, Multidisciplinary
Brenden R. Ortiz et al.
PHYSICAL REVIEW MATERIALS
(2019)
Article
Physics, Multidisciplinary
Enke Liu et al.
Article
Materials Science, Multidisciplinary
Wan-Sheng Wang et al.
Article
Physics, Multidisciplinary
Maximilian L. Kiesel et al.
PHYSICAL REVIEW LETTERS
(2013)
Article
Materials Science, Multidisciplinary
Shun-Li Yu et al.
Review
Multidisciplinary Sciences
Leon Balents
Article
Materials Science, Multidisciplinary
H. -M. Guo et al.
Article
Physics, Multidisciplinary
A. F. Kusmartseva et al.
PHYSICAL REVIEW LETTERS
(2009)
Article
Physics, Multidisciplinary
F. Pollmann et al.
PHYSICAL REVIEW LETTERS
(2008)
Article
Physics, Multidisciplinary
E. Morosan et al.
